data_source
string | missing
int64 | skill_score
float64 | difficulty
string | initial_board
string | initial_observation
string | solution
string | hint
string | description
string | cols
int64 | rows
int64 | rules
string | task_name
string | task_type
string | title
string | visual_elements
string |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ritvik19
| 41
| 3
|
extremely_hard
|
5246.1.371..9....6369.2.5.1.32..98....574836....5.2.198.3276....96.........894...
|
5 2 4 6 . 1 . 3 7
1 . . 9 . . . . 6
3 6 9 . 2 . 5 . 1
. 3 2 . . 9 8 . .
. . 5 7 4 8 3 6 .
. . . 5 . 2 . 1 9
8 . 3 2 7 6 . . .
. 9 6 . . . . . .
. . . 8 9 4 . . .
|
524681937187953426369427581732169845915748362648532719853276194496315278271894653
|
524681937187953426369427581732169845915748362648532719853276194496315278271894653 #1 Hard (364)
Naked Single: r1c5=8
Full House: r1c7=9
Naked Single: r5c1=9
Naked Single: r4c4=1
Naked Single: r5c9=2
Full House: r5c2=1
Naked Single: r3c4=4
Full House: r8c4=3
Naked Single: r3c6=7
Full House: r3c8=8
Naked Single: r4c5=6
Full House: r6c5=3
Naked Single: r8c6=5
Full House: r2c6=3
Full House: r2c5=5
Full House: r8c5=1
Hidden Single: r9c7=6
Hidden Single: r9c3=1
Hidden Single: r8c9=8
Hidden Single: r7c8=9
Hidden Single: r9c9=3
Hidden Single: r7c7=1
Hidden Single: r6c1=6
Skyscraper: 4 in r6c7,r7c9 (connected by r67c2) => r4c9,r8c7<>4
Naked Single: r4c9=5
Full House: r7c9=4
Full House: r7c2=5
Naked Single: r9c2=7
Naked Single: r2c2=8
Full House: r2c3=7
Full House: r6c2=4
Full House: r6c3=8
Full House: r4c1=7
Full House: r6c7=7
Full House: r4c8=4
Naked Single: r9c1=2
Full House: r8c1=4
Full House: r9c8=5
Naked Single: r8c7=2
Full House: r2c7=4
Full House: r2c8=2
Full House: r8c8=7
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_300
|
sudoku
|
sudoku_300
| null |
ritvik19
| 43
| 3
|
extremely_hard
|
798.413.2.63.8.79.5..7.3.6...29561.7..1437...9...12..53....95..2.5..49.....5.....
|
7 9 8 . 4 1 3 . 2
. 6 3 . 8 . 7 9 .
5 . . 7 . 3 . 6 .
. . 2 9 5 6 1 . 7
. . 1 4 3 7 . . .
9 . . . 1 2 . . 5
3 . . . . 9 5 . .
2 . 5 . . 4 9 . .
. . . 5 . . . . .
|
798641352163285794524793861432956187851437629976812435387129546215364978649578213
|
798641352163285794524793861432956187851437629976812435387129546215364978649578213 #1 Hard (642)
Full House: r6c4=8
Naked Single: r1c8=5
Full House: r1c4=6
Naked Single: r3c3=4
Naked Single: r2c6=5
Full House: r9c6=8
Naked Single: r2c4=2
Full House: r3c5=9
Naked Single: r2c1=1
Full House: r2c9=4
Full House: r3c2=2
Naked Single: r3c7=8
Full House: r3c9=1
Naked Single: r7c4=1
Full House: r8c4=3
Hidden Single: r5c2=5
Hidden Single: r9c3=9
Hidden Single: r5c9=9
Hidden Single: r9c9=3
Locked Candidates Type 1 (Pointing): 6 in b6 => r9c7<>6
Locked Candidates Type 1 (Pointing): 8 in b6 => r78c8<>8
Locked Candidates Type 1 (Pointing): 8 in b7 => r4c2<>8
Skyscraper: 4 in r4c1,r6c7 (connected by r9c17) => r4c8,r6c2<>4
W-Wing: 3/4 in r4c2,r6c8 connected by 4 in r7c28 => r4c8,r6c2<>3
Naked Single: r4c8=8
Naked Single: r6c2=7
Naked Single: r4c1=4
Full House: r4c2=3
Naked Single: r5c8=2
Naked Single: r6c3=6
Full House: r5c1=8
Full House: r9c1=6
Full House: r5c7=6
Full House: r7c3=7
Naked Single: r6c7=4
Full House: r6c8=3
Full House: r9c7=2
Naked Single: r7c8=4
Naked Single: r9c5=7
Naked Single: r7c2=8
Naked Single: r8c5=6
Full House: r7c5=2
Full House: r7c9=6
Full House: r8c9=8
Naked Single: r9c8=1
Full House: r8c8=7
Full House: r8c2=1
Full House: r9c2=4
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_334
|
sudoku
|
sudoku_334
| null |
ritvik19
| 41
| 3
|
extremely_hard
|
46.....92..3..2.655..46983...164532...2.1.95...5.9.1488....62792...8..13......58.
|
4 6 . . . . . 9 2
. . 3 . . 2 . 6 5
5 . . 4 6 9 8 3 .
. . 1 6 4 5 3 2 .
. . 2 . 1 . 9 5 .
. . 5 . 9 . 1 4 8
8 . . . . 6 2 7 9
2 . . . 8 . . 1 3
. . . . . . 5 8 .
|
468153792193872465527469831981645327742318956635297148814536279259784613376921584
|
468153792193872465527469831981645327742318956635297148814536279259784613376921584 #1 Hard (344)
Naked Single: r3c3=7
Naked Single: r1c7=7
Naked Single: r4c9=7
Full House: r5c9=6
Naked Single: r7c3=4
Naked Single: r2c5=7
Naked Single: r1c3=8
Naked Single: r3c9=1
Full House: r2c7=4
Full House: r9c9=4
Full House: r3c2=2
Full House: r8c7=6
Naked Single: r4c1=9
Full House: r4c2=8
Naked Single: r8c3=9
Full House: r9c3=6
Naked Single: r2c1=1
Full House: r2c2=9
Full House: r2c4=8
Hidden Single: r6c4=2
Hidden Single: r5c2=4
Hidden Single: r6c1=6
Hidden Single: r9c5=2
Hidden Single: r5c6=8
Hidden Single: r8c6=4
Hidden Single: r9c4=9
Remote Pair: 3/7 r6c6 -7- r6c2 -3- r5c1 -7- r9c1 => r9c6<>3, r9c6<>7
Naked Single: r9c6=1
Naked Single: r1c6=3
Full House: r6c6=7
Full House: r5c4=3
Full House: r6c2=3
Full House: r5c1=7
Full House: r9c1=3
Full House: r9c2=7
Naked Single: r1c5=5
Full House: r1c4=1
Full House: r7c5=3
Naked Single: r7c4=5
Full House: r7c2=1
Full House: r8c2=5
Full House: r8c4=7
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_303
|
sudoku
|
sudoku_303
| null |
ritvik19
| 43
| 3
|
extremely_hard
|
....92485.8....7..94.7...1.513..96.8...6.41...64...29..58..19..49782....1..9.78.4
|
. . . . 9 2 4 8 5
. 8 . . . . 7 . .
9 4 . 7 . . . 1 .
5 1 3 . . 9 6 . 8
. . . 6 . 4 1 . .
. 6 4 . . . 2 9 .
. 5 8 . . 1 9 . .
4 9 7 8 2 . . . .
1 . . 9 . 7 8 . 4
|
671392485382145769945768312513279648729684153864513297258431976497826531136957824
|
671392485382145769945768312513279648729684153864513297258431976497826531136957824 #1 Hard (462)
Naked Single: r4c4=2
Naked Single: r3c7=3
Full House: r8c7=5
Naked Single: r4c5=7
Full House: r4c8=4
Hidden Single: r2c9=9
Hidden Single: r5c8=5
Hidden Single: r5c3=9
Hidden Single: r8c9=1
Hidden Single: r9c5=5
Hidden Single: r7c8=7
Locked Candidates Type 1 (Pointing): 3 in b6 => r7c9<>3
Locked Candidates Type 2 (Claiming): 6 in r1 => r2c13,r3c3<>6
Skyscraper: 2 in r3c3,r7c1 (connected by r37c9) => r2c1,r9c3<>2
Naked Single: r2c1=3
Naked Single: r9c3=6
Naked Single: r1c2=7
Naked Single: r1c3=1
Naked Single: r7c1=2
Full House: r9c2=3
Full House: r5c2=2
Full House: r9c8=2
Naked Single: r1c1=6
Full House: r1c4=3
Naked Single: r7c9=6
Full House: r8c8=3
Full House: r2c8=6
Full House: r3c9=2
Full House: r8c6=6
Naked Single: r7c4=4
Full House: r7c5=3
Naked Single: r2c6=5
Naked Single: r3c3=5
Full House: r2c3=2
Naked Single: r5c5=8
Naked Single: r2c4=1
Full House: r2c5=4
Full House: r6c4=5
Naked Single: r3c6=8
Full House: r3c5=6
Full House: r6c5=1
Full House: r6c6=3
Naked Single: r5c1=7
Full House: r5c9=3
Full House: r6c9=7
Full House: r6c1=8
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_353
|
sudoku
|
sudoku_353
| null |
sudoku_benchmark
| 45
| 2
|
hard
|
...5....3135.9468...2...59.671352849..8...1...938.1..5.5....2....79....83....79..
|
. . . 5 . . . . 3
1 3 5 . 9 4 6 8 .
. . 2 . . . 5 9 .
6 7 1 3 5 2 8 4 9
. . 8 . . . 1 . .
. 9 3 8 . 1 . . 5
. 5 . . . . 2 . .
. . 7 9 . . . . 8
3 . . . . 7 9 . .
|
769528413135794682842136597671352849528479136493861725954683271217945368386217954
|
769528413135794682842136597671352849528479136493861725954683271217945368386217954 #1 Medium (340)
Naked Single: r6c7=7
Naked Single: r1c7=4
Full House: r8c7=3
Hidden Single: r5c8=3
Hidden Single: r5c1=5
Hidden Single: r5c6=9
Hidden Single: r9c8=5
Hidden Single: r8c6=5
Locked Candidates Type 2 (Claiming): 4 in c3 => r78c1,r89c2<>4
Naked Single: r8c1=2
Naked Single: r6c1=4
Full House: r5c2=2
Naked Single: r6c5=6
Full House: r6c8=2
Full House: r5c9=6
Hidden Single: r8c5=4
Naked Single: r5c5=7
Full House: r5c4=4
Hidden Single: r3c2=4
Hidden Single: r2c9=2
Full House: r2c4=7
Hidden Single: r1c5=2
Hidden Single: r9c4=2
Hidden Single: r1c8=1
Full House: r3c9=7
Naked Single: r8c8=6
Full House: r7c8=7
Full House: r8c2=1
Naked Single: r3c1=8
Naked Single: r1c2=6
Full House: r9c2=8
Naked Single: r7c1=9
Full House: r1c1=7
Full House: r1c3=9
Full House: r1c6=8
Naked Single: r9c5=1
Naked Single: r3c5=3
Full House: r7c5=8
Naked Single: r7c4=6
Full House: r3c4=1
Full House: r3c6=6
Full House: r7c6=3
Naked Single: r9c9=4
Full House: r7c9=1
Full House: r7c3=4
Full House: r9c3=6
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
"
|
sudoku_normal_hard_64
|
sudoku
|
sudoku_normal_hard_64
|
None
|
ritvik19
| 42
| 3
|
extremely_hard
|
92847..63..76....91.3..8..7.9.78....4.259..3.8753.2.96.54.69....8.2.......91...82
|
9 2 8 4 7 . . 6 3
. . 7 6 . . . . 9
1 . 3 . . 8 . . 7
. 9 . 7 8 . . . .
4 . 2 5 9 . . 3 .
8 7 5 3 . 2 . 9 6
. 5 4 . 6 9 . . .
. 8 . 2 . . . . .
. . 9 1 . . . 8 2
|
928471563547623819163958247396784125412596738875312496254869371681237954739145682
|
928471563547623819163958247396784125412596738875312496254869371681237954739145682 #1 Hard (368)
Naked Single: r2c1=5
Naked Single: r2c2=4
Full House: r3c2=6
Naked Single: r3c4=9
Full House: r7c4=8
Naked Single: r7c9=1
Naked Single: r5c2=1
Full House: r9c2=3
Naked Single: r5c9=8
Naked Single: r7c8=7
Naked Single: r4c3=6
Full House: r4c1=3
Full House: r8c3=1
Naked Single: r5c6=6
Full House: r5c7=7
Naked Single: r7c1=2
Full House: r7c7=3
Hidden Single: r8c7=9
Hidden Single: r2c7=8
Hidden Single: r8c1=6
Full House: r9c1=7
Hidden Single: r9c7=6
Hidden Single: r8c6=7
Hidden Single: r8c5=3
Hidden Single: r2c6=3
Skyscraper: 1 in r1c6,r6c5 (connected by r16c7) => r2c5,r4c6<>1
Naked Single: r2c5=2
Full House: r2c8=1
Naked Single: r4c6=4
Full House: r6c5=1
Full House: r6c7=4
Naked Single: r3c5=5
Full House: r1c6=1
Full House: r1c7=5
Full House: r9c6=5
Full House: r9c5=4
Naked Single: r4c9=5
Full House: r8c9=4
Full House: r8c8=5
Naked Single: r3c7=2
Full House: r3c8=4
Full House: r4c8=2
Full House: r4c7=1
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_309
|
sudoku
|
sudoku_309
| null |
ritvik19
| 42
| 3
|
extremely_hard
|
.7.218.656...4..193.56..482.491.2......9.48262...859.........34..84..19......1658
|
. 7 . 2 1 8 . 6 5
6 . . . 4 . . 1 9
3 . 5 6 . . 4 8 2
. 4 9 1 . 2 . . .
. . . 9 . 4 8 2 6
2 . . . 8 5 9 . .
. . . . . . . 3 4
. . 8 4 . . 1 9 .
. . . . . 1 6 5 8
|
974218365682543719315679482849162573751934826263785941196857234538426197427391658
|
974218365682543719315679482849162573751934826263785941196857234538426197427391658 #1 Hard (518)
Naked Single: r1c7=3
Full House: r2c7=7
Naked Single: r1c3=4
Full House: r1c1=9
Naked Single: r2c3=2
Naked Single: r8c9=7
Full House: r7c7=2
Full House: r4c7=5
Naked Single: r4c8=7
Full House: r6c8=4
Naked Single: r2c6=3
Naked Single: r3c2=1
Full House: r2c2=8
Full House: r2c4=5
Naked Single: r4c9=3
Full House: r6c9=1
Naked Single: r8c1=5
Naked Single: r4c1=8
Full House: r4c5=6
Naked Single: r8c6=6
Hidden Single: r7c4=8
Hidden Single: r9c1=4
Hidden Single: r5c2=5
Hidden Single: r7c5=5
Naked Pair: 3,7 in r9c34 => r9c25<>3, r9c5<>7
X-Wing: 7 r69 c34 => r57c3<>7
Remote Pair: 3/7 r5c5 -7- r6c4 -3- r9c4 -7- r9c3 => r5c3<>3
Naked Single: r5c3=1
Naked Single: r5c1=7
Full House: r5c5=3
Full House: r7c1=1
Full House: r6c4=7
Full House: r9c4=3
Naked Single: r7c3=6
Naked Single: r8c5=2
Full House: r8c2=3
Naked Single: r9c3=7
Full House: r6c3=3
Full House: r6c2=6
Naked Single: r7c2=9
Full House: r7c6=7
Full House: r9c5=9
Full House: r9c2=2
Full House: r3c6=9
Full House: r3c5=7
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_329
|
sudoku
|
sudoku_329
| null |
sudoku_benchmark
| 44
| 3
|
extremely_hard
|
..1..7..2....1..5.9..3..1...95683...624179....834526...4.79...1.19..4.7.5..8.19..
|
. . 1 . . 7 . . 2
. . . . 1 . . 5 .
9 . . 3 . . 1 . .
. 9 5 6 8 3 . . .
6 2 4 1 7 9 . . .
. 8 3 4 5 2 6 . .
. 4 . 7 9 . . . 1
. 1 9 . . 4 . 7 .
5 . . 8 . 1 9 . .
|
851967432436218759972345168795683214624179385183452697348796521219534876567821943
|
851967432436218759972345168795683214624179385183452697348796521219534876567821943 #1 Unfair (1756)
Locked Candidates Type 1 (Pointing): 7 in b4 => r2c1<>7
Discontinuous Nice Loop: 4 r1c8 -4- r9c8 =4= r9c9 -4- r4c9 -7- r6c9 -9- r6c8 =9= r1c8 => r1c8<>4
Discontinuous Nice Loop: 2 r2c1 -2- r2c4 =2= r3c5 =4= r1c5 -4- r1c1 =4= r2c1 => r2c1<>2
Locked Candidates Type 1 (Pointing): 2 in b1 => r79c3<>2
Continuous Nice Loop: 2/3/4/6/7 4= r9c8 =2= r9c5 -2- r3c5 =2= r2c4 =9= r2c9 -9- r6c9 -7- r4c9 -4- r9c9 =4= r9c8 =2 => r8c5<>2, r9c8<>3, r3c9<>4, r9c8<>6, r3c9,r4c7<>7
Hidden Single: r2c7=7
Hidden Rectangle: 6/7 in r3c23,r9c23 => r3c2<>6
Sue de Coq: r3c56 - {24568} (r3c89 - {468}, r12c4 - {259}) => r3c3<>6, r3c3<>8
AIC: 6 6- r1c5 -4- r1c7 =4= r4c7 =2= r4c8 -2- r9c8 =2= r9c5 -2- r8c4 -5- r7c6 -6 => r23c6,r89c5<>6
Naked Single: r2c6=8
Naked Single: r8c5=3
Naked Single: r3c6=5
Full House: r7c6=6
Naked Single: r9c5=2
Full House: r8c4=5
Naked Single: r1c4=9
Full House: r2c4=2
Naked Single: r3c2=7
Naked Single: r7c3=8
Naked Single: r9c8=4
Naked Single: r2c3=6
Naked Single: r3c3=2
Full House: r9c3=7
Naked Single: r8c1=2
Naked Single: r2c2=3
Naked Single: r7c1=3
Full House: r9c2=6
Full House: r1c2=5
Full House: r9c9=3
Naked Single: r8c7=8
Full House: r8c9=6
Naked Single: r2c1=4
Full House: r1c1=8
Full House: r2c9=9
Naked Single: r7c8=2
Full House: r7c7=5
Naked Single: r3c9=8
Naked Single: r6c9=7
Naked Single: r4c8=1
Naked Single: r5c7=3
Naked Single: r3c8=6
Full House: r3c5=4
Full House: r1c5=6
Naked Single: r5c9=5
Full House: r4c9=4
Full House: r5c8=8
Naked Single: r6c1=1
Full House: r4c1=7
Full House: r6c8=9
Full House: r1c8=3
Full House: r1c7=4
Full House: r4c7=2
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_normal_hard_101
|
sudoku
|
sudoku_normal_hard_101
|
None
|
ritvik19
| 42
| 3
|
extremely_hard
|
1.6.8.2.449.6527133...1.856.1...7..2.64.3...1.3.1.......1...9.75...7...8.738..645
|
1 . 6 . 8 . 2 . 4
4 9 . 6 5 2 7 1 3
3 . . . 1 . 8 5 6
. 1 . . . 7 . . 2
. 6 4 . 3 . . . 1
. 3 . 1 . . . . .
. . 1 . . . 9 . 7
5 . . . 7 . . . 8
. 7 3 8 . . 6 4 5
|
156783294498652713327419856815947362964238571732165489681524937549376128273891645
|
156783294498652713327419856815947362964238571732165489681524937549376128273891645 #1 Hard (488)
Full House: r2c3=8
Full House: r1c8=9
Full House: r6c9=9
Naked Single: r5c7=5
Naked Single: r1c2=5
Naked Single: r3c2=2
Full House: r3c3=7
Naked Single: r1c6=3
Full House: r1c4=7
Naked Single: r6c7=4
Naked Single: r8c2=4
Full House: r7c2=8
Naked Single: r4c7=3
Full House: r8c7=1
Hidden Single: r8c6=6
Hidden Single: r7c1=6
Hidden Single: r9c6=1
Skyscraper: 2 in r5c4,r9c5 (connected by r59c1) => r6c5,r78c4<>2
Naked Single: r6c5=6
Hidden Single: r5c4=2
Hidden Single: r4c8=6
Hidden Single: r4c1=8
Skyscraper: 9 in r5c6,r9c5 (connected by r59c1) => r4c5<>9
Naked Single: r4c5=4
Naked Single: r7c5=2
Full House: r9c5=9
Full House: r9c1=2
Full House: r8c3=9
Naked Single: r7c8=3
Full House: r8c8=2
Full House: r8c4=3
Naked Single: r6c1=7
Full House: r5c1=9
Naked Single: r4c3=5
Full House: r4c4=9
Full House: r6c3=2
Naked Single: r6c8=8
Full House: r5c8=7
Full House: r5c6=8
Full House: r6c6=5
Naked Single: r3c4=4
Full House: r3c6=9
Full House: r7c6=4
Full House: r7c4=5
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_311
|
sudoku
|
sudoku_311
| null |
sudoku_benchmark
| 41
| 3
|
extremely_hard
|
.4.....95..7..64388....4.6..2.1..84.4.8.32.19..1849.5..942..581.8.4..92.5.2....74
|
. 4 . . . . . 9 5
. . 7 . . 6 4 3 8
8 . . . . 4 . 6 .
. 2 . 1 . . 8 4 .
4 . 8 . 3 2 . 1 9
. . 1 8 4 9 . 5 .
. 9 4 2 . . 5 8 1
. 8 . 4 . . 9 2 .
5 . 2 . . . . 7 4
|
246381795157926438839754162925167843478532619361849257694273581783415926512698374
|
246381795157926438839754162925167843478532619361849257694273581783415926512698374 #1 Hard (584)
Locked Candidates Type 1 (Pointing): 7 in b7 => r46c1<>7
Naked Pair: 3,6 in r8c39 => r8c16<>3, r8c15<>6
Naked Pair: 3,6 in r18c3 => r34c3<>3, r4c3<>6
Swordfish: 6 c247 r569 => r6c19,r9c5<>6
Naked Single: r6c1=3
Hidden Single: r4c9=3
Naked Single: r8c9=6
Full House: r9c7=3
Naked Single: r8c3=3
Naked Single: r1c3=6
Hidden Single: r7c6=3
Hidden Single: r3c2=3
Hidden Single: r1c4=3
Locked Candidates Type 2 (Claiming): 7 in r4 => r5c4<>7
Hidden Single: r3c4=7
Naked Single: r3c9=2
Full House: r6c9=7
Naked Single: r3c7=1
Full House: r1c7=7
Naked Single: r5c7=6
Full House: r6c7=2
Full House: r6c2=6
Naked Single: r5c4=5
Full House: r5c2=7
Naked Single: r4c1=9
Full House: r4c3=5
Full House: r3c3=9
Full House: r3c5=5
Naked Single: r9c2=1
Full House: r2c2=5
Naked Single: r2c4=9
Full House: r9c4=6
Naked Single: r4c6=7
Full House: r4c5=6
Naked Single: r8c1=7
Full House: r7c1=6
Full House: r7c5=7
Naked Single: r9c6=8
Full House: r9c5=9
Naked Single: r8c5=1
Full House: r8c6=5
Full House: r1c6=1
Naked Single: r2c5=2
Full House: r1c5=8
Full House: r1c1=2
Full House: r2c1=1
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
"
|
sudoku_normal_hard_44
|
sudoku
|
sudoku_normal_hard_44
|
None
|
ritvik19
| 40
| 3
|
extremely_hard
|
4..8..2....873.95.9...148375319..4..78412..95...4..1...47.8..298.5.9..413.95.....
|
4 . . 8 . . 2 . .
. . 8 7 3 . 9 5 .
9 . . . 1 4 8 3 7
5 3 1 9 . . 4 . .
7 8 4 1 2 . . 9 5
. . . 4 . . 1 . .
. 4 7 . 8 . . 2 9
8 . 5 . 9 . . 4 1
3 . 9 5 . . . . .
|
473859216618732954952614837531968472784123695296475183147386529865297341329541768
|
473859216618732954952614837531968472784123695296475183147386529865297341329541768 #1 Hard (380)
Naked Single: r1c9=6
Naked Single: r1c3=3
Naked Single: r1c5=5
Naked Single: r1c8=1
Full House: r2c9=4
Naked Single: r9c9=8
Naked Single: r1c6=9
Full House: r1c2=7
Naked Single: r4c9=2
Full House: r6c9=3
Naked Single: r5c7=6
Full House: r5c6=3
Naked Single: r9c7=7
Naked Single: r8c7=3
Full House: r7c7=5
Full House: r9c8=6
Naked Single: r9c5=4
Hidden Single: r6c2=9
Hidden Single: r3c2=5
Hidden Single: r6c6=5
Hidden Single: r8c6=7
Hidden Single: r7c4=3
Hidden Single: r6c8=8
Full House: r4c8=7
Naked Single: r4c5=6
Full House: r4c6=8
Full House: r6c5=7
Locked Candidates Type 1 (Pointing): 2 in b7 => r2c2<>2
Remote Pair: 6/2 r6c1 -2- r6c3 -6- r3c3 -2- r3c4 -6- r8c4 -2- r8c2 => r2c2,r7c1<>6
Naked Single: r2c2=1
Naked Single: r7c1=1
Full House: r7c6=6
Naked Single: r9c2=2
Full House: r8c2=6
Full House: r8c4=2
Full House: r9c6=1
Full House: r2c6=2
Full House: r3c4=6
Full House: r2c1=6
Full House: r3c3=2
Full House: r6c1=2
Full House: r6c3=6
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_260
|
sudoku
|
sudoku_260
| null |
ritvik19
| 43
| 3
|
extremely_hard
|
..96.1..347.9.3.6.3..5........4.5.969.47..8.1..58..7.47.21.....6.8354..7.432..61.
|
. . 9 6 . 1 . . 3
4 7 . 9 . 3 . 6 .
3 . . 5 . . . . .
. . . 4 . 5 . 9 6
9 . 4 7 . . 8 . 1
. . 5 8 . . 7 . 4
7 . 2 1 . . . . .
6 . 8 3 5 4 . . 7
. 4 3 2 . . 6 1 .
|
259671483471983562386542179837415296924736851165829734792168345618354927543297618
|
259671483471983562386542179837415296924736851165829734792168345618354927543297618 #1 Hard (492)
Naked Single: r2c3=1
Naked Single: r8c8=2
Naked Single: r9c1=5
Naked Single: r3c3=6
Full House: r4c3=7
Naked Single: r6c8=3
Naked Single: r8c7=9
Full House: r8c2=1
Full House: r7c2=9
Naked Single: r4c7=2
Full House: r5c8=5
Naked Single: r9c9=8
Naked Single: r2c7=5
Naked Single: r7c8=4
Naked Single: r7c9=5
Full House: r7c7=3
Naked Single: r1c7=4
Full House: r3c7=1
Naked Single: r2c9=2
Full House: r2c5=8
Full House: r3c9=9
Naked Single: r7c5=6
Full House: r7c6=8
Hidden Single: r1c2=5
Hidden Single: r3c5=4
2-String Kite: 2 in r3c6,r6c1 (connected by r1c1,r3c2) => r6c6<>2
W-Wing: 6/2 in r5c6,r6c2 connected by 2 in r3c26 => r5c2,r6c6<>6
Naked Single: r6c6=9
Naked Single: r9c6=7
Full House: r9c5=9
Naked Single: r3c6=2
Full House: r1c5=7
Full House: r5c6=6
Naked Single: r3c2=8
Full House: r1c1=2
Full House: r1c8=8
Full House: r3c8=7
Naked Single: r4c2=3
Naked Single: r6c1=1
Full House: r4c1=8
Full House: r4c5=1
Naked Single: r5c2=2
Full House: r5c5=3
Full House: r6c5=2
Full House: r6c2=6
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_336
|
sudoku
|
sudoku_336
| null |
ritvik19
| 45
| 3
|
extremely_hard
|
296.5.17.7.82..6...1...7.8...2...413..9....26.8..24..7..7.85.4....7925..1.5..6.9.
|
2 9 6 . 5 . 1 7 .
7 . 8 2 . . 6 . .
. 1 . . . 7 . 8 .
. . 2 . . . 4 1 3
. . 9 . . . . 2 6
. 8 . . 2 4 . . 7
. . 7 . 8 5 . 4 .
. . . 7 9 2 5 . .
1 . 5 . . 6 . 9 .
|
296853174748219635513467289652978413479531826381624957967185342834792561125346798
|
296853174748219635513467289652978413479531826381624957967185342834792561125346798 #1 Unfair (610)
Naked Single: r1c9=4
Naked Single: r5c7=8
Naked Single: r6c7=9
Full House: r6c8=5
Naked Single: r2c8=3
Full House: r8c8=6
Naked Single: r3c7=2
Naked Single: r7c7=3
Full House: r9c7=7
Naked Single: r7c4=1
Naked Single: r7c9=2
Naked Single: r7c2=6
Full House: r7c1=9
Naked Single: r9c9=8
Full House: r8c9=1
Hidden Single: r6c3=1
Hidden Single: r8c1=8
Hidden Single: r9c2=2
Locked Candidates Type 1 (Pointing): 3 in b1 => r3c45<>3
Naked Triple: 5,6,7 in r4c125 => r4c4<>5, r4c4<>6
Hidden Single: r5c4=5
XY-Chain: 4 4- r2c2 -5- r4c2 -7- r4c5 -6- r3c5 -4 => r2c5,r3c13<>4
Naked Single: r2c5=1
Naked Single: r3c3=3
Full House: r8c3=4
Full House: r8c2=3
Naked Single: r2c6=9
Naked Single: r3c1=5
Full House: r2c2=4
Full House: r2c9=5
Full House: r3c9=9
Naked Single: r4c6=8
Naked Single: r4c1=6
Naked Single: r5c2=7
Full House: r4c2=5
Naked Single: r1c6=3
Full House: r1c4=8
Full House: r5c6=1
Naked Single: r4c4=9
Full House: r4c5=7
Naked Single: r6c1=3
Full House: r5c1=4
Full House: r5c5=3
Full House: r6c4=6
Naked Single: r9c5=4
Full House: r3c5=6
Full House: r3c4=4
Full House: r9c4=3
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_411
|
sudoku
|
sudoku_411
| null |
ritvik19
| 45
| 3
|
extremely_hard
|
.78.....5......76.14.9....2..47.5....2169.35..5.42....539...416.67....93..2369.7.
|
. 7 8 . . . . . 5
. . . . . . 7 6 .
1 4 . 9 . . . . 2
. . 4 7 . 5 . . .
. 2 1 6 9 . 3 5 .
. 5 . 4 2 . . . .
5 3 9 . . . 4 1 6
. 6 7 . . . . 9 3
. . 2 3 6 9 . 7 .
|
678132945293854761145976832384715629721698354956423187539287416867541293412369578
|
678132945293854761145976832384715629721698354956423187539287416867541293412369578 #1 Unfair (700)
Naked Single: r3c7=8
Naked Single: r5c6=8
Naked Single: r2c2=9
Naked Single: r6c8=8
Naked Single: r9c9=8
Naked Single: r3c8=3
Naked Single: r9c7=5
Full House: r8c7=2
Naked Single: r5c1=7
Full House: r5c9=4
Naked Single: r4c2=8
Full House: r9c2=1
Full House: r9c1=4
Full House: r8c1=8
Naked Single: r4c8=2
Full House: r1c8=4
Naked Single: r2c9=1
Full House: r1c7=9
Naked Single: r4c9=9
Full House: r6c9=7
Hidden Single: r6c1=9
Naked Pair: 1,3 in r14c5 => r2c5<>3, r8c5<>1
XY-Chain: 2 2- r1c4 -1- r1c5 -3- r4c5 -1- r4c7 -6- r4c1 -3- r2c1 -2 => r1c1,r2c46<>2
Hidden Single: r2c1=2
Naked Triple: 1,3,4 in r268c6 => r1c6<>1, r1c6<>3
Bivalue Universal Grave + 1 => r2c5<>4, r2c5<>8
Naked Single: r2c5=5
Naked Single: r2c3=3
Naked Single: r2c4=8
Full House: r2c6=4
Naked Single: r3c5=7
Naked Single: r8c5=4
Naked Single: r1c1=6
Full House: r3c3=5
Full House: r6c3=6
Full House: r3c6=6
Full House: r4c1=3
Naked Single: r7c4=2
Naked Single: r8c6=1
Full House: r8c4=5
Full House: r1c4=1
Naked Single: r7c5=8
Full House: r7c6=7
Naked Single: r1c6=2
Full House: r6c6=3
Full House: r6c7=1
Full House: r4c5=1
Full House: r1c5=3
Full House: r4c7=6
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_409
|
sudoku
|
sudoku_409
| null |
ritvik19
| 45
| 3
|
extremely_hard
|
5..4.871.....1....416.....89.1.5...26...921.58.2.......649.3..1..5.8.42..8924.63.
|
5 . . 4 . 8 7 1 .
. . . . 1 . . . .
4 1 6 . . . . . 8
9 . 1 . 5 . . . 2
6 . . . 9 2 1 . 5
8 . 2 . . . . . .
. 6 4 9 . 3 . . 1
. . 5 . 8 . 4 2 .
. 8 9 2 4 . 6 3 .
|
593428716728516394416739258941357862637892145852164973264973581375681429189245637
|
593428716728516394416739258941357862637892145852164973264973581375681429189245637 #1 Hard (380)
Naked Single: r1c3=3
Naked Single: r7c5=7
Naked Single: r9c9=7
Naked Single: r5c3=7
Full House: r2c3=8
Naked Single: r7c1=2
Naked Single: r8c9=9
Naked Single: r9c1=1
Full House: r9c6=5
Naked Single: r2c1=7
Full House: r8c1=3
Full House: r8c2=7
Naked Single: r1c9=6
Naked Single: r1c5=2
Full House: r1c2=9
Full House: r2c2=2
Naked Single: r3c5=3
Full House: r6c5=6
Hidden Single: r6c2=5
Hidden Single: r3c7=2
Hidden Single: r4c8=6
Hidden Single: r6c8=7
Hidden Single: r6c7=9
W-Wing: 3/4 in r4c2,r6c9 connected by 4 in r5c28 => r4c7<>3
Naked Single: r4c7=8
Naked Single: r5c8=4
Full House: r6c9=3
Full House: r2c9=4
Naked Single: r7c7=5
Full House: r2c7=3
Full House: r7c8=8
Naked Single: r5c2=3
Full House: r4c2=4
Full House: r5c4=8
Naked Single: r6c4=1
Full House: r6c6=4
Naked Single: r4c6=7
Full House: r4c4=3
Naked Single: r8c4=6
Full House: r8c6=1
Naked Single: r3c6=9
Full House: r2c6=6
Naked Single: r2c4=5
Full House: r2c8=9
Full House: r3c8=5
Full House: r3c4=7
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_396
|
sudoku
|
sudoku_396
| null |
ritvik19
| 41
| 3
|
extremely_hard
|
..412785.57....19.1.65.93.786..12..53.5..6.71.19.536....36.15.96.8..........35...
|
. . 4 1 2 7 8 5 .
5 7 . . . . 1 9 .
1 . 6 5 . 9 3 . 7
8 6 . . 1 2 . . 5
3 . 5 . . 6 . 7 1
. 1 9 . 5 3 6 . .
. . 3 6 . 1 5 . 9
6 . 8 . . . . . .
. . . . 3 5 . . .
|
934127856572368194186549327867412935345986271219753648423671589658294713791835462
|
934127856572368194186549327867412935345986271219753648423671589658294713791835462 #1 Hard (464)
Naked Single: r1c9=6
Naked Single: r1c1=9
Full House: r1c2=3
Naked Single: r4c3=7
Naked Single: r2c3=2
Full House: r3c2=8
Full House: r9c3=1
Naked Single: r8c6=4
Full House: r2c6=8
Naked Single: r2c9=4
Full House: r3c8=2
Full House: r3c5=4
Naked Single: r2c4=3
Full House: r2c5=6
Hidden Single: r4c8=3
Naked Single: r8c8=1
Hidden Single: r9c8=6
Hidden Single: r8c9=3
Hidden Single: r8c2=5
Hidden Single: r6c4=7
Hidden Single: r9c2=9
Locked Candidates Type 2 (Claiming): 2 in r7 => r9c1<>2
Naked Pair: 2,8 in r9c49 => r9c7<>2
Skyscraper: 4 in r6c8,r9c7 (connected by r69c1) => r45c7,r7c8<>4
Naked Single: r4c7=9
Full House: r4c4=4
Naked Single: r7c8=8
Full House: r6c8=4
Naked Single: r5c7=2
Full House: r6c9=8
Full House: r9c9=2
Full House: r6c1=2
Full House: r5c2=4
Full House: r7c2=2
Naked Single: r7c5=7
Full House: r7c1=4
Full House: r9c1=7
Naked Single: r8c7=7
Full House: r9c7=4
Full House: r9c4=8
Naked Single: r8c5=9
Full House: r5c5=8
Full House: r5c4=9
Full House: r8c4=2
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_278
|
sudoku
|
sudoku_278
| null |
ritvik19
| 42
| 3
|
extremely_hard
|
.9.6.3...256.813....72.....83152.67...51.7...6723.....564..213.1...3..527....5.96
|
. 9 . 6 . 3 . . .
2 5 6 . 8 1 3 . .
. . 7 2 . . . . .
8 3 1 5 2 . 6 7 .
. . 5 1 . 7 . . .
6 7 2 3 . . . . .
5 6 4 . . 2 1 3 .
1 . . . 3 . . 5 2
7 . . . . 5 . 9 6
|
498673521256981347317254869831529674945167283672348915564792138189436752723815496
|
498673521256981347317254869831529674945167283672348915564792138189436752723815496 #1 Hard (388)
Naked Single: r5c2=4
Full House: r5c1=9
Naked Single: r1c3=8
Naked Single: r1c1=4
Full House: r3c1=3
Full House: r3c2=1
Naked Single: r8c2=8
Full House: r9c2=2
Naked Single: r2c8=4
Naked Single: r5c5=6
Naked Single: r8c3=9
Full House: r9c3=3
Hidden Single: r6c6=8
Naked Single: r6c8=1
Naked Single: r1c8=2
Naked Single: r5c8=8
Full House: r3c8=6
Naked Single: r5c7=2
Full House: r5c9=3
Hidden Single: r9c5=1
Hidden Single: r8c6=6
Hidden Single: r1c9=1
Locked Candidates Type 1 (Pointing): 4 in b9 => r6c7<>4
Skyscraper: 7 in r1c5,r8c4 (connected by r18c7) => r2c4,r7c5<>7
Naked Single: r2c4=9
Full House: r2c9=7
Naked Single: r7c5=9
Naked Single: r3c6=4
Full House: r4c6=9
Full House: r6c5=4
Full House: r4c9=4
Naked Single: r1c7=5
Full House: r1c5=7
Full House: r3c5=5
Naked Single: r7c9=8
Full House: r7c4=7
Naked Single: r6c7=9
Full House: r6c9=5
Full House: r3c9=9
Full House: r3c7=8
Naked Single: r9c7=4
Full House: r8c7=7
Full House: r8c4=4
Full House: r9c4=8
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_322
|
sudoku
|
sudoku_322
| null |
ritvik19
| 43
| 3
|
extremely_hard
|
.....78.....148.35.45369.21...47.5.635.6..297.172..483.3..1..58..1........9.3..7.
|
. . . . . 7 8 . .
. . . 1 4 8 . 3 5
. 4 5 3 6 9 . 2 1
. . . 4 7 . 5 . 6
3 5 . 6 . . 2 9 7
. 1 7 2 . . 4 8 3
. 3 . . 1 . . 5 8
. . 1 . . . . . .
. . 9 . 3 . . 7 .
|
163527849972148635845369721298473516354681297617295483436712958781954362529836174
|
163527849972148635845369721298473516354681297617295483436712958781954362529836174 #1 Hard (612)
Full House: r4c8=1
Naked Single: r3c7=7
Full House: r3c1=8
Naked Single: r5c6=1
Naked Single: r1c4=5
Full House: r1c5=2
Naked Single: r6c6=5
Naked Single: r5c5=8
Full House: r5c3=4
Naked Single: r4c6=3
Full House: r6c5=9
Full House: r6c1=6
Full House: r8c5=5
Naked Single: r9c4=8
Hidden Single: r1c3=3
Hidden Single: r1c1=1
Hidden Single: r9c7=1
Hidden Single: r8c7=3
Hidden Single: r9c1=5
Hidden Single: r4c3=8
Hidden Single: r8c2=8
Hidden Single: r2c2=7
Naked Pair: 2,6 in r7c3,r9c2 => r78c1<>2
X-Wing: 6 c37 r27 => r7c6<>6
W-Wing: 4/2 in r7c6,r9c9 connected by 2 in r8c69 => r9c6<>4
Hidden Single: r9c9=4
Naked Single: r1c9=9
Full House: r8c9=2
Naked Single: r8c8=6
Full House: r1c8=4
Full House: r1c2=6
Full House: r2c7=6
Full House: r7c7=9
Naked Single: r8c6=4
Naked Single: r2c3=2
Full House: r2c1=9
Full House: r7c3=6
Naked Single: r9c2=2
Full House: r4c2=9
Full House: r4c1=2
Full House: r9c6=6
Full House: r7c6=2
Naked Single: r7c4=7
Full House: r7c1=4
Full House: r8c1=7
Full House: r8c4=9
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_351
|
sudoku
|
sudoku_351
| null |
ritvik19
| 45
| 3
|
extremely_hard
|
..53..71...7.6...991.75823467...3..51.38.4962...6...8......7...739....2.4.19.....
|
. . 5 3 . . 7 1 .
. . 7 . 6 . . . 9
9 1 . 7 5 8 2 3 4
6 7 . . . 3 . . 5
1 . 3 8 . 4 9 6 2
. . . 6 . . . 8 .
. . . . . 7 . . .
7 3 9 . . . . 2 .
4 . 1 9 . . . . .
|
845329716327461859916758234678293145153874962294615387582147693739586421461932578
|
845329716327461859916758234678293145153874962294615387582147693739586421461932578 #1 Hard (370)
Full House: r3c3=6
Naked Single: r5c2=5
Full House: r5c5=7
Naked Single: r2c8=5
Naked Single: r4c8=4
Naked Single: r6c1=2
Naked Single: r2c7=8
Full House: r1c9=6
Naked Single: r9c8=7
Full House: r7c8=9
Naked Single: r4c7=1
Naked Single: r1c1=8
Naked Single: r4c3=8
Naked Single: r6c3=4
Full House: r7c3=2
Full House: r6c2=9
Naked Single: r2c1=3
Full House: r7c1=5
Naked Single: r4c4=2
Full House: r4c5=9
Naked Single: r6c7=3
Full House: r6c9=7
Naked Single: r6c5=1
Full House: r6c6=5
Hidden Single: r1c6=9
Hidden Single: r8c4=5
Hidden Single: r9c7=5
XY-Wing: 1/4/6 in r7c47,r8c6 => r8c7<>6
Naked Single: r8c7=4
Full House: r7c7=6
Naked Single: r8c5=8
Naked Single: r7c2=8
Full House: r9c2=6
Naked Single: r8c9=1
Full House: r8c6=6
Naked Single: r9c6=2
Full House: r2c6=1
Naked Single: r7c9=3
Full House: r9c9=8
Full House: r9c5=3
Naked Single: r2c4=4
Full House: r1c5=2
Full House: r7c5=4
Full House: r2c2=2
Full House: r7c4=1
Full House: r1c2=4
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_399
|
sudoku
|
sudoku_399
| null |
ritvik19
| 43
| 3
|
extremely_hard
|
.596.81.2..83...79.2459.836..61.5........9.81.4..86.....2.6.....6.8...2.193..2768
|
. 5 9 6 . 8 1 . 2
. . 8 3 . . . 7 9
. 2 4 5 9 . 8 3 6
. . 6 1 . 5 . . .
. . . . . 9 . 8 1
. 4 . . 8 6 . . .
. . 2 . 6 . . . .
. 6 . 8 . . . 2 .
1 9 3 . . 2 7 6 8
|
359678142618324579724591836876135294235749681941286357582967413467813925193452768
|
359678142618324579724591836876135294235749681941286357582967413467813925193452768 #1 Unfair (612)
Naked Single: r1c8=4
Full House: r2c7=5
Naked Single: r2c2=1
Naked Single: r2c1=6
Naked Single: r3c1=7
Full House: r1c1=3
Full House: r1c5=7
Full House: r3c6=1
Naked Single: r9c4=4
Full House: r9c5=5
Naked Single: r4c8=9
Naked Single: r2c6=4
Full House: r2c5=2
Naked Single: r6c8=5
Full House: r7c8=1
Hidden Single: r5c7=6
Hidden Single: r6c3=1
Hidden Single: r8c7=9
Hidden Single: r7c4=9
Hidden Single: r8c5=1
Hidden Single: r6c1=9
Hidden Single: r5c5=4
Full House: r4c5=3
Hidden Single: r5c2=3
Hidden Rectangle: 4/5 in r7c19,r8c19 => r7c9<>4
XY-Chain: 8 8- r4c1 -2- r4c7 -4- r7c7 -3- r7c6 -7- r7c2 -8 => r4c2,r7c1<>8
Naked Single: r4c2=7
Full House: r7c2=8
Naked Single: r4c9=4
Naked Single: r5c3=5
Full House: r8c3=7
Naked Single: r4c7=2
Full House: r4c1=8
Full House: r5c1=2
Full House: r5c4=7
Full House: r6c4=2
Naked Single: r8c6=3
Full House: r7c6=7
Naked Single: r6c7=3
Full House: r6c9=7
Full House: r7c7=4
Naked Single: r8c9=5
Full House: r7c9=3
Full House: r7c1=5
Full House: r8c1=4
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_346
|
sudoku
|
sudoku_346
| null |
ritvik19
| 42
| 3
|
extremely_hard
|
6..1923.8..9..52.4..2.389...3.947..6.67.2.5...2....7...78.5.49...6.7...2.932.46.7
|
6 . . 1 9 2 3 . 8
. . 9 . . 5 2 . 4
. . 2 . 3 8 9 . .
. 3 . 9 4 7 . . 6
. 6 7 . 2 . 5 . .
. 2 . . . . 7 . .
. 7 8 . 5 . 4 9 .
. . 6 . 7 . . . 2
. 9 3 2 . 4 6 . 7
|
645192378389765214712438965531947826967823541824516739278651493456379182193284657
|
645192378389765214712438965531947826967823541824516739278651493456379182193284657 #1 Hard (748)
Naked Single: r2c5=6
Naked Single: r2c4=7
Full House: r3c4=4
Naked Single: r2c8=1
Naked Single: r2c2=8
Full House: r2c1=3
Naked Single: r3c9=5
Naked Single: r1c8=7
Full House: r3c8=6
Naked Single: r3c2=1
Full House: r3c1=7
Hidden Single: r4c8=2
Hidden Single: r6c4=5
Hidden Single: r8c6=9
Hidden Single: r7c1=2
Hidden Single: r6c6=6
Hidden Single: r7c4=6
Locked Candidates Type 1 (Pointing): 3 in b5 => r5c89<>3
Locked Candidates Type 1 (Pointing): 1 in b7 => r456c1<>1
X-Wing: 1 r57 c69 => r6c9<>1
Skyscraper: 8 in r4c7,r5c4 (connected by r8c47) => r5c8<>8
Naked Single: r5c8=4
W-Wing: 5/8 in r4c1,r9c8 connected by 8 in r48c7 => r9c1<>5
Naked Single: r9c1=1
Naked Single: r9c5=8
Full House: r6c5=1
Full House: r9c8=5
Naked Single: r8c4=3
Full House: r5c4=8
Full House: r5c6=3
Full House: r7c6=1
Full House: r7c9=3
Naked Single: r6c3=4
Naked Single: r8c8=8
Full House: r6c8=3
Full House: r8c7=1
Full House: r4c7=8
Naked Single: r5c1=9
Full House: r5c9=1
Full House: r6c9=9
Full House: r6c1=8
Naked Single: r1c3=5
Full House: r1c2=4
Full House: r4c3=1
Full House: r4c1=5
Full House: r8c2=5
Full House: r8c1=4
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_321
|
sudoku
|
sudoku_321
| null |
ritvik19
| 43
| 3
|
extremely_hard
|
1..637...7..215.935...4.71...71.45..8.9.23174..17...3..74...3......9..57....729.8
|
1 . . 6 3 7 . . .
7 . . 2 1 5 . 9 3
5 . . . 4 . 7 1 .
. . 7 1 . 4 5 . .
8 . 9 . 2 3 1 7 4
. . 1 7 . . . 3 .
. 7 4 . . . 3 . .
. . . . 9 . . 5 7
. . . . 7 2 9 . 8
|
198637245746215893523948716237164589869523174451789632974856321682391457315472968
|
198637245746215893523948716237164589869523174451789632974856321682391457315472968 #1 Hard (492)
Naked Single: r5c4=5
Full House: r5c2=6
Naked Single: r7c4=8
Naked Single: r3c4=9
Full House: r3c6=8
Hidden Single: r1c2=9
Hidden Single: r6c1=4
Hidden Single: r4c9=9
Hidden Single: r6c6=9
Hidden Single: r1c9=5
Hidden Single: r9c3=5
Hidden Single: r7c1=9
Hidden Single: r9c2=1
Hidden Single: r7c9=1
Naked Single: r7c6=6
Full House: r8c6=1
Naked Single: r7c5=5
Full House: r7c8=2
Hidden Single: r6c2=5
Hidden Single: r2c2=4
Hidden Single: r8c2=8
Locked Candidates Type 1 (Pointing): 6 in b1 => r8c3<>6
W-Wing: 8/6 in r2c7,r4c8 connected by 6 in r36c9 => r1c8,r6c7<>8
Naked Single: r1c8=4
Naked Single: r9c8=6
Full House: r4c8=8
Full House: r8c7=4
Naked Single: r9c1=3
Full House: r9c4=4
Full House: r8c4=3
Naked Single: r4c5=6
Full House: r6c5=8
Naked Single: r4c1=2
Full House: r4c2=3
Full House: r8c1=6
Full House: r8c3=2
Full House: r3c2=2
Naked Single: r1c3=8
Full House: r1c7=2
Naked Single: r3c9=6
Full House: r2c7=8
Full House: r2c3=6
Full House: r6c7=6
Full House: r3c3=3
Full House: r6c9=2
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_341
|
sudoku
|
sudoku_341
| null |
ritvik19
| 44
| 3
|
extremely_hard
|
.....8.4..8...25.1.4...9....7.1..4..3128.4.7...4..7.1..35246.894.7....63.98731..4
|
. . . . . 8 . 4 .
. 8 . . . 2 5 . 1
. 4 . . . 9 . . .
. 7 . 1 . . 4 . .
3 1 2 8 . 4 . 7 .
. . 4 . . 7 . 1 .
. 3 5 2 4 6 . 8 9
4 . 7 . . . . 6 3
. 9 8 7 3 1 . . 4
|
263518947789462531541379826876153492312894675954627318135246789427985163698731254
|
263518947789462531541379826876153492312894675954627318135246789427985163698731254 #1 Hard (636)
Naked Single: r7c1=1
Full House: r7c7=7
Naked Single: r8c2=2
Full House: r9c1=6
Naked Single: r8c6=5
Full House: r4c6=3
Naked Single: r9c7=2
Full House: r9c8=5
Full House: r8c7=1
Naked Single: r8c4=9
Full House: r8c5=8
Hidden Single: r2c4=4
Hidden Single: r6c7=3
Hidden Single: r3c7=8
Naked Pair: 5,6 in r6c24 => r6c159<>5, r6c59<>6
Empty Rectangle: 5 in b5 (r16c2) => r1c5<>5
Empty Rectangle: 6 in b5 (r16c2) => r1c5<>6
Empty Rectangle: 9 in b4 (r24c8) => r2c1<>9
Naked Single: r2c1=7
Naked Single: r2c5=6
Hidden Single: r6c4=6
Naked Single: r6c2=5
Full House: r1c2=6
Naked Single: r1c7=9
Full House: r5c7=6
Naked Single: r2c8=3
Full House: r2c3=9
Naked Single: r5c9=5
Full House: r5c5=9
Naked Single: r3c8=2
Full House: r4c8=9
Naked Single: r4c3=6
Naked Single: r6c5=2
Full House: r4c5=5
Naked Single: r1c9=7
Full House: r3c9=6
Naked Single: r3c1=5
Naked Single: r4c1=8
Full House: r4c9=2
Full House: r6c9=8
Full House: r6c1=9
Full House: r1c1=2
Naked Single: r1c5=1
Full House: r3c5=7
Naked Single: r3c4=3
Full House: r1c4=5
Full House: r1c3=3
Full House: r3c3=1
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_375
|
sudoku
|
sudoku_375
| null |
sudoku_benchmark
| 40
| 3
|
extremely_hard
|
71.92.6.4....14..22.46.7.9..2.4....5.46172..3..7...42.67.24......27.1.464.1.692.7
|
7 1 . 9 2 . 6 . 4
. . . . 1 4 . . 2
2 . 4 6 . 7 . 9 .
. 2 . 4 . . . . 5
. 4 6 1 7 2 . . 3
. . 7 . . . 4 2 .
6 7 . 2 4 . . . .
. . 2 7 . 1 . 4 6
4 . 1 . 6 9 2 . 7
|
718925634963814572254637198129483765546172983837596421675248319392751846481369257
|
718925634963814572254637198129483765546172983837596421675248319392751846481369257 #1 Hard (920)
Naked Single: r5c8=8
Naked Single: r5c7=9
Full House: r5c1=5
Naked Single: r6c9=1
Naked Single: r3c9=8
Full House: r7c9=9
Naked Single: r4c7=7
Full House: r4c8=6
Hidden Single: r2c2=6
Hidden Single: r6c6=6
Hidden Single: r3c7=1
Hidden Single: r4c1=1
Hidden Single: r7c8=1
Hidden Single: r2c8=7
Skyscraper: 5 in r7c6,r9c8 (connected by r1c68) => r7c7,r9c4<>5
W-Wing: 3/5 in r1c8,r3c2 connected by 5 in r9c28 => r1c3<>3
W-Wing: 5/3 in r2c7,r3c5 connected by 3 in r1c68 => r2c4<>5
Hidden Single: r6c4=5
Skyscraper: 3 in r1c8,r2c4 (connected by r9c48) => r1c6,r2c7<>3
Naked Single: r2c7=5
Full House: r1c8=3
Full House: r9c8=5
Skyscraper: 3 in r3c5,r9c4 (connected by r39c2) => r2c4,r8c5<>3
Naked Single: r2c4=8
Full House: r9c4=3
Full House: r9c2=8
Naked Single: r1c6=5
Full House: r1c3=8
Full House: r3c5=3
Full House: r3c2=5
Naked Single: r7c6=8
Full House: r4c6=3
Full House: r8c5=5
Naked Single: r7c7=3
Full House: r7c3=5
Full House: r8c7=8
Naked Single: r4c3=9
Full House: r2c3=3
Full House: r4c5=8
Full House: r2c1=9
Full House: r6c5=9
Naked Single: r6c2=3
Full House: r6c1=8
Full House: r8c1=3
Full House: r8c2=9
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_normal_hard_110
|
sudoku
|
sudoku_normal_hard_110
|
None
|
sudoku_benchmark
| 39
| 3
|
extremely_hard
|
6.472......54.6...7..39..4697.65...4.5293476.4.6.7295..6.5..4...49.6713...7.4.6..
|
6 . 4 7 2 . . . .
. . 5 4 . 6 . . .
7 . . 3 9 . . 4 6
9 7 . 6 5 . . . 4
. 5 2 9 3 4 7 6 .
4 . 6 . 7 2 9 5 .
. 6 . 5 . . 4 . .
. 4 9 . 6 7 1 3 .
. . 7 . 4 . 6 . .
|
694725813315486279728391546971658324852934761436172958263519487549867132187243695
|
694725813315486279728391546971658324852934761436172958263519487549867132187243695 #1 Extreme (6136)
Locked Candidates Type 1 (Pointing): 5 in b9 => r1c9<>5
Naked Triple: 1,2,8 in r7c5,r89c4 => r79c6<>1, r79c6<>8
Empty Rectangle: 3 in b1 (r6c29) => r2c9<>3
Finned Jellyfish: 8 r5689 c1249 fr9c8 => r7c9<>8
Almost Locked Set XZ-Rule: A=r1c789,r23c7 {123589}, B=r4c7,r56c9 {1238}, X=2, Z=1 => r2c9<>1
Forcing Chain Contradiction in c8 => r1c8<>8
r1c8=8 r1c8<>1
r1c8=8 r123c7<>8 r4c7=8 r4c6<>8 r4c6=1 r13c6<>1 r2c5=1 r2c8<>1
r1c8=8 r123c7<>8 r4c7=8 r4c7<>2 r4c8=2 r4c8<>1
Forcing Chain Verity => r1c9<>1
r2c1=1 r5c1<>1 r5c9=1 r1c9<>1
r2c2=1 r2c2<>9 r1c2=9 r1c8<>9 r1c8=1 r1c9<>1
r2c5=1 r13c6<>1 r4c6=1 r4c8<>1 r12c8=1 r1c9<>1
r2c8=1 r1c9<>1
Locked Candidates Type 1 (Pointing): 1 in b3 => r4c8<>1
W-Wing: 8/1 in r5c1,r6c4 connected by 1 in r4c36 => r6c2<>8
Swordfish: 8 r568 c149 => r129c9,r279c1,r9c4<>8
Discontinuous Nice Loop: 3 r2c2 -3- r6c2 =3= r6c9 -3- r1c9 -9- r1c2 =9= r2c2 => r2c2<>3
Discontinuous Nice Loop: 1 r2c1 -1- r2c5 =1= r7c5 -1- r9c4 =1= r6c4 -1- r6c2 -3- r1c2 =3= r2c1 => r2c1<>1
Finned Swordfish: 1 c149 r569 fr7c1 => r9c2<>1
Discontinuous Nice Loop: 8 r7c3 -8- r7c5 -1- r9c4 =1= r6c4 -1- r6c2 -3- r4c3 =3= r7c3 => r7c3<>8
XYZ-Wing: 1/2/3 in r27c1,r7c3 => r9c1<>3
AIC: 1 1- r1c8 =1= r2c8 =7= r7c8 =8= r7c5 =1= r2c5 -1 => r1c6,r2c8<>1
Hidden Single: r1c8=1
Hidden Rectangle: 5/8 in r1c67,r3c67 => r3c7<>8
AIC: 3 3- r7c3 =3= r4c3 =8= r5c1 -8- r8c1 =8= r9c2 =3= r9c6 -3 => r7c6,r9c2<>3
Naked Single: r7c6=9
Naked Single: r9c6=3
X-Wing: 3 c29 r16 => r1c7<>3
Naked Pair: 5,8 in r1c67 => r1c2<>8
XYZ-Wing: 1/2/8 in r3c23,r9c2 => r2c2<>8
Locked Candidates Type 1 (Pointing): 8 in b1 => r3c6<>8
XYZ-Wing: 2/7/8 in r47c8,r7c9 => r9c8<>2
Hidden Rectangle: 2/7 in r2c89,r7c89 => r2c8<>2
XY-Chain: 2 2- r3c7 -5- r3c6 -1- r4c6 -8- r4c8 -2 => r4c7<>2
Hidden Single: r4c8=2
Locked Candidates Type 1 (Pointing): 2 in b9 => r2c9<>2
XY-Chain: 2 2- r7c9 -7- r7c8 -8- r7c5 -1- r9c4 -2 => r9c9<>2
Sue de Coq: r9c12 - {1258} (r9c89 - {589}, r7c13 - {123}) => r8c1<>2
Grouped AIC: 3/9 3- r1c9 -9- r9c9 =9= r9c8 =8= r9c2 =2= r79c1 -2- r2c1 -3- r1c2 -9 => r1c2<>3, r1c9<>9
Naked Single: r1c2=9
Naked Single: r1c9=3
Hidden Single: r6c2=3
Hidden Single: r2c1=3
Hidden Single: r4c7=3
Hidden Single: r7c3=3
Locked Candidates Type 1 (Pointing): 2 in b1 => r9c2<>2
Naked Single: r9c2=8
Naked Single: r8c1=5
Naked Single: r9c8=9
Naked Single: r9c9=5
Hidden Single: r3c3=8
Full House: r4c3=1
Full House: r4c6=8
Full House: r5c1=8
Full House: r6c4=1
Full House: r5c9=1
Full House: r6c9=8
Naked Single: r1c6=5
Full House: r1c7=8
Full House: r3c6=1
Full House: r2c5=8
Full House: r7c5=1
Naked Single: r9c4=2
Full House: r8c4=8
Full House: r8c9=2
Full House: r9c1=1
Full House: r7c1=2
Naked Single: r2c7=2
Full House: r3c7=5
Full House: r3c2=2
Full House: r2c2=1
Naked Single: r2c8=7
Full House: r2c9=9
Full House: r7c9=7
Full House: r7c8=8
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_normal_hard_148
|
sudoku
|
sudoku_normal_hard_148
|
None
|
sudoku_benchmark
| 42
| 3
|
extremely_hard
|
.896.2.172.1...9.6....9182...81...726..2.8149412.7968..23........4...2..8..92...1
|
. 8 9 6 . 2 . 1 7
2 . 1 . . . 9 . 6
. . . . 9 1 8 2 .
. . 8 1 . . . 7 2
6 . . 2 . 8 1 4 9
4 1 2 . 7 9 6 8 .
. 2 3 . . . . . .
. . 4 . . . 2 . .
8 . . 9 2 . . . 1
|
389652417251487936746391825938146572675238149412579683123865794594713268867924351
|
389652417251487936746391825938146572675238149412579683123865794594713268867924351 #1 Extreme (3188)
Naked Pair: 3,5 in r5c5,r6c4 => r4c56<>3, r4c56<>5
Swordfish: 4 r149 c567 => r2c56,r7c567<>4
Almost Locked Set XY-Wing: A=r7c15678 {156789}, B=r2368c4 {34578}, C=r125c5 {3458}, X,Y=4,8, Z=5,7 => r7c4<>5, r7c4<>7
Forcing Chain Contradiction in r3 => r1c7<>3
r1c7=3 r1c1<>3 r1c1=5 r3c1<>5
r1c7=3 r1c1<>3 r1c1=5 r3c2<>5
r1c7=3 r1c1<>3 r1c1=5 r3c3<>5
r1c7=3 r4c7<>3 r4c7=5 r6c9<>5 r6c4=5 r3c4<>5
r1c7=3 r1c7<>4 r3c9=4 r3c9<>5
Skyscraper: 3 in r1c1,r5c2 (connected by r15c5) => r23c2,r4c1<>3
Turbot Fish: 3 r2c8 =3= r3c9 -3- r6c9 =3= r6c4 => r2c4<>3
Discontinuous Nice Loop: 3 r2c5 -3- r2c8 =3= r3c9 =4= r7c9 -4- r7c4 -8- r2c4 =8= r2c5 => r2c5<>3
Empty Rectangle: 3 in b8 (r2c68) => r8c8<>3
AIC: 8 8- r2c5 -5- r5c5 -3- r5c2 =3= r4c2 -3- r4c7 =3= r9c7 =4= r9c6 -4- r7c4 -8 => r2c4,r78c5<>8
Hidden Single: r2c5=8
Hidden Pair: 4,8 in r7c49 => r7c9<>5
Discontinuous Nice Loop: 5 r8c9 -5- r6c9 -3- r4c7 =3= r9c7 =4= r7c9 =8= r8c9 => r8c9<>5
Sue de Coq: r8c456 - {135678} (r8c9 - {38}, r7c56 - {1567}) => r9c6<>5, r9c6<>6, r9c6<>7
Grouped Discontinuous Nice Loop: 5 r1c1 =3= r1c5 -3- r2c6 =3= r2c8 =5= r789c8 -5- r7c7 -7- r9c7 =7= r9c23 -7- r78c1 =7= r3c1 =3= r1c1 => r1c1<>5
Naked Single: r1c1=3
X-Wing: 3 r36 c49 => r8c49<>3
Naked Single: r8c9=8
Naked Single: r7c9=4
Naked Single: r7c4=8
Hidden Single: r1c7=4
Full House: r1c5=5
Naked Single: r5c5=3
Naked Single: r6c4=5
Full House: r6c9=3
Full House: r3c9=5
Full House: r4c7=5
Full House: r2c8=3
Naked Single: r8c4=7
Naked Single: r3c1=7
Naked Single: r4c1=9
Naked Single: r7c7=7
Full House: r9c7=3
Naked Single: r2c6=7
Naked Single: r2c4=4
Full House: r2c2=5
Full House: r3c4=3
Naked Single: r3c3=6
Full House: r3c2=4
Naked Single: r4c2=3
Naked Single: r9c6=4
Naked Single: r5c2=7
Full House: r5c3=5
Full House: r9c3=7
Naked Single: r4c6=6
Full House: r4c5=4
Naked Single: r9c2=6
Full House: r8c2=9
Full House: r9c8=5
Naked Single: r7c6=5
Full House: r8c6=3
Naked Single: r8c8=6
Full House: r7c8=9
Naked Single: r7c1=1
Full House: r7c5=6
Full House: r8c5=1
Full House: r8c1=5
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_normal_hard_130
|
sudoku
|
sudoku_normal_hard_130
|
None
|
ritvik19
| 41
| 3
|
extremely_hard
|
..5...8..86..7.9.59...1836..3.765.2.4.29.175.7...4.19.69..5.2.15..1..6...4.6.75.9
|
. . 5 . . . 8 . .
8 6 . . 7 . 9 . 5
9 . . . 1 8 3 6 .
. 3 . 7 6 5 . 2 .
4 . 2 9 . 1 7 5 .
7 . . . 4 . 1 9 .
6 9 . . 5 . 2 . 1
5 . . 1 . . 6 . .
. 4 . 6 . 7 5 . 9
|
215396847863274915974518362139765428482931756756842193698453271527189634341627589
|
215396847863274915974518362139765428482931756756842193698453271527189634341627589 #1 Hard (534)
Full House: r4c7=4
Naked Single: r4c1=1
Naked Single: r5c2=8
Naked Single: r4c9=8
Full House: r4c3=9
Naked Single: r5c5=3
Full House: r5c9=6
Full House: r6c9=3
Naked Single: r6c2=5
Full House: r6c3=6
Naked Single: r6c6=2
Full House: r6c4=8
Hidden Single: r3c4=5
Hidden Single: r1c2=1
Hidden Single: r1c6=6
Hidden Single: r9c3=1
Hidden Single: r2c4=2
Naked Single: r1c5=9
Hidden Single: r2c8=1
Hidden Single: r8c6=9
Locked Candidates Type 1 (Pointing): 7 in b1 => r3c9<>7
Locked Candidates Type 1 (Pointing): 3 in b8 => r7c38<>3
Locked Candidates Type 1 (Pointing): 4 in b8 => r7c8<>4
W-Wing: 4/7 in r1c8,r3c3 connected by 7 in r7c38 => r3c9<>4
Naked Single: r3c9=2
Naked Single: r3c2=7
Full House: r3c3=4
Full House: r8c2=2
Naked Single: r2c3=3
Full House: r1c1=2
Full House: r9c1=3
Full House: r2c6=4
Full House: r1c4=3
Full House: r7c6=3
Full House: r7c4=4
Naked Single: r8c5=8
Full House: r9c5=2
Full House: r9c8=8
Naked Single: r8c3=7
Full House: r7c3=8
Full House: r7c8=7
Naked Single: r8c9=4
Full House: r1c9=7
Full House: r1c8=4
Full House: r8c8=3
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_296
|
sudoku
|
sudoku_296
| null |
ritvik19
| 40
| 3
|
extremely_hard
|
3.6...9...58.69......7...655.4287391.8.3....62...9..8.413....29.95..17436729.3..8
|
3 . 6 . . . 9 . .
. 5 8 . 6 9 . . .
. . . 7 . . . 6 5
5 . 4 2 8 7 3 9 1
. 8 . 3 . . . . 6
2 . . . 9 . . 8 .
4 1 3 . . . . 2 9
. 9 5 . . 1 7 4 3
6 7 2 9 . 3 . . 8
|
326158974758469132149732865564287391987314256231596487413875629895621743672943518
|
326158974758469132149732865564287391987314256231596487413875629895621743672943518 #1 Hard (420)
Full House: r4c2=6
Full House: r8c1=8
Naked Single: r8c5=2
Full House: r8c4=6
Naked Single: r6c2=3
Hidden Single: r5c7=2
Hidden Single: r7c5=7
Hidden Single: r2c8=3
Hidden Single: r7c7=6
Hidden Single: r2c1=7
Hidden Single: r3c5=3
Hidden Single: r9c5=4
Hidden Single: r3c7=8
Hidden Single: r6c6=6
Hidden Single: r2c9=2
Hidden Single: r5c6=4
Naked Single: r3c6=2
Naked Single: r3c2=4
Full House: r1c2=2
W-Wing: 1/5 in r1c5,r9c8 connected by 5 in r5c58 => r1c8<>1
Naked Single: r1c8=7
Naked Single: r1c9=4
Full House: r2c7=1
Full House: r6c9=7
Full House: r2c4=4
Naked Single: r5c8=5
Full House: r6c7=4
Full House: r9c7=5
Full House: r9c8=1
Naked Single: r6c3=1
Full House: r6c4=5
Full House: r5c5=1
Full House: r1c5=5
Naked Single: r3c3=9
Full House: r3c1=1
Full House: r5c1=9
Full House: r5c3=7
Naked Single: r7c4=8
Full House: r1c4=1
Full House: r1c6=8
Full House: r7c6=5
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_253
|
sudoku
|
sudoku_253
| null |
ritvik19
| 40
| 3
|
extremely_hard
|
.....948..93.82.6.8...1...9.526..7.867985...434892..1.965..3..1.3..9.6...81...923
|
. . . . . 9 4 8 .
. 9 3 . 8 2 . 6 .
8 . . . 1 . . . 9
. 5 2 6 . . 7 . 8
6 7 9 8 5 . . . 4
3 4 8 9 2 . . 1 .
9 6 5 . . 3 . . 1
. 3 . . 9 . 6 . .
. 8 1 . . . 9 2 3
|
517369482493782165826415379152634798679851234348927516965273841234198657781546923
|
517369482493782165826415379152634798679851234348927516965273841234198657781546923 #1 Hard (410)
Full House: r4c1=1
Naked Single: r6c6=7
Naked Single: r3c2=2
Full House: r1c2=1
Naked Single: r5c6=1
Naked Single: r6c7=5
Full House: r6c9=6
Naked Single: r5c8=3
Full House: r5c7=2
Full House: r4c8=9
Naked Single: r7c7=8
Naked Single: r4c6=4
Full House: r4c5=3
Naked Single: r2c7=1
Full House: r3c7=3
Hidden Single: r8c6=8
Hidden Single: r8c4=1
Hidden Single: r7c4=2
Hidden Single: r8c1=2
Hidden Single: r1c9=2
Hidden Single: r1c4=3
Hidden Single: r1c1=5
Locked Candidates Type 1 (Pointing): 4 in b2 => r9c4<>4
Skyscraper: 7 in r8c9,r9c1 (connected by r2c19) => r8c3<>7
Naked Single: r8c3=4
Full House: r9c1=7
Full House: r2c1=4
Naked Single: r9c4=5
Naked Single: r2c4=7
Full House: r2c9=5
Full House: r3c4=4
Full House: r3c8=7
Full House: r8c9=7
Full House: r8c8=5
Full House: r7c8=4
Full House: r7c5=7
Naked Single: r9c6=6
Full House: r3c6=5
Full House: r1c5=6
Full House: r3c3=6
Full House: r9c5=4
Full House: r1c3=7
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_254
|
sudoku
|
sudoku_254
| null |
ritvik19
| 45
| 3
|
extremely_hard
|
.7...82......59.87..8.2..5...718.....93...7..8..9.2.4..8921.534.3..9..72.25..4.61
|
. 7 . . . 8 2 . .
. . . . 5 9 . 8 7
. . 8 . 2 . . 5 .
. . 7 1 8 . . . .
. 9 3 . . . 7 . .
8 . . 9 . 2 . 4 .
. 8 9 2 1 . 5 3 4
. 3 . . 9 . . 7 2
. 2 5 . . 4 . 6 1
|
571348296342659187968721453457183629293465718816972345689217534134596872725834961
|
571348296342659187968721453457183629293465718816972345689217534134596872725834961 #1 Hard (620)
Naked Single: r8c7=8
Full House: r9c7=9
Naked Single: r9c1=7
Naked Single: r7c1=6
Full House: r7c6=7
Naked Single: r9c5=3
Full House: r9c4=8
Hidden Single: r5c9=8
Hidden Single: r6c5=7
Hidden Single: r3c6=1
Hidden Single: r2c3=2
Hidden Single: r1c1=5
Hidden Single: r3c4=7
Hidden Single: r4c6=3
Naked Single: r4c7=6
Hidden Single: r3c1=9
Hidden Single: r2c1=3
Hidden Single: r1c4=3
Locked Candidates Type 1 (Pointing): 4 in b5 => r5c1<>4
X-Wing: 1 c27 r26 => r6c3<>1
Naked Single: r6c3=6
W-Wing: 1/4 in r1c3,r2c7 connected by 4 in r3c27 => r1c8,r2c2<>1
Naked Single: r1c8=9
Naked Single: r1c9=6
Naked Single: r4c8=2
Full House: r5c8=1
Naked Single: r1c5=4
Full House: r1c3=1
Full House: r2c4=6
Full House: r5c5=6
Full House: r8c3=4
Full House: r8c1=1
Naked Single: r3c9=3
Naked Single: r4c1=4
Full House: r5c1=2
Naked Single: r6c7=3
Naked Single: r2c2=4
Full House: r2c7=1
Full House: r3c7=4
Full House: r3c2=6
Naked Single: r8c4=5
Full House: r5c4=4
Full House: r5c6=5
Full House: r8c6=6
Naked Single: r6c9=5
Full House: r4c9=9
Full House: r4c2=5
Full House: r6c2=1
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_387
|
sudoku
|
sudoku_387
| null |
ritvik19
| 40
| 3
|
extremely_hard
|
....378......126.928..4.3.11...8......837.16.5..26..87..7.26598...1987...947.3216
|
. . . . 3 7 8 . .
. . . . 1 2 6 . 9
2 8 . . 4 . 3 . 1
1 . . . 8 . . . .
. . 8 3 7 . 1 6 .
5 . . 2 6 . . 8 7
. . 7 . 2 6 5 9 8
. . . 1 9 8 7 . .
. 9 4 7 . 3 2 1 6
|
461937852735812649289645371176589423928374165543261987317426598652198734894753216
|
461937852735812649289645371176589423928374165543261987317426598652198734894753216 #1 Hard (450)
Full House: r9c5=5
Full House: r7c4=4
Full House: r9c1=8
Naked Single: r7c1=3
Full House: r7c2=1
Naked Single: r8c1=6
Hidden Single: r2c4=8
Hidden Single: r6c6=1
Hidden Single: r3c8=7
Hidden Single: r4c2=7
Hidden Single: r2c1=7
Hidden Single: r1c3=1
Hidden Single: r4c3=6
Hidden Single: r1c2=6
Hidden Single: r3c4=6
Hidden Single: r8c3=2
Full House: r8c2=5
Hidden Single: r5c2=2
Locked Candidates Type 2 (Claiming): 4 in c7 => r4c89,r5c9<>4
Naked Single: r5c9=5
Skyscraper: 9 in r1c4,r5c6 (connected by r15c1) => r3c6,r4c4<>9
Naked Single: r3c6=5
Full House: r1c4=9
Full House: r4c4=5
Full House: r3c3=9
Naked Single: r1c1=4
Full House: r5c1=9
Full House: r5c6=4
Full House: r4c6=9
Naked Single: r6c3=3
Full House: r2c3=5
Full House: r2c2=3
Full House: r6c2=4
Full House: r2c8=4
Full House: r6c7=9
Full House: r4c7=4
Naked Single: r1c9=2
Full House: r1c8=5
Naked Single: r8c8=3
Full House: r4c8=2
Full House: r4c9=3
Full House: r8c9=4
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_251
|
sudoku
|
sudoku_251
| null |
ritvik19
| 43
| 3
|
extremely_hard
|
..7.45....4....8.72..76..54...51..266...2.4317..4.6.98.8..5..7.9.36.4.8.576..2.4.
|
. . 7 . 4 5 . . .
. 4 . . . . 8 . 7
2 . . 7 6 . . 5 4
. . . 5 1 . . 2 6
6 . . . 2 . 4 3 1
7 . . 4 . 6 . 9 8
. 8 . . 5 . . 7 .
9 . 3 6 . 4 . 8 .
5 7 6 . . 2 . 4 .
|
867345219345291867291768354438519726659827431712436598184953672923674185576182943
|
867345219345291867291768354438519726659827431712436598184953672923674185576182943 #1 Hard (492)
Naked Single: r4c7=7
Full House: r6c7=5
Naked Single: r6c5=3
Naked Single: r8c5=7
Naked Single: r2c5=9
Full House: r9c5=8
Hidden Single: r5c6=7
Hidden Single: r2c3=5
Hidden Single: r8c9=5
Hidden Single: r1c2=6
Naked Single: r1c8=1
Full House: r2c8=6
Hidden Single: r7c7=6
Hidden Single: r2c4=2
Hidden Single: r5c2=5
Locked Candidates Type 1 (Pointing): 9 in b1 => r3c7<>9
Naked Single: r3c7=3
Hidden Single: r4c2=3
Hidden Single: r3c2=9
Locked Candidates Type 1 (Pointing): 1 in b2 => r7c6<>1
Skyscraper: 8 in r1c1,r5c3 (connected by r15c4) => r3c3,r4c1<>8
Naked Single: r3c3=1
Full House: r3c6=8
Naked Single: r4c1=4
Naked Single: r2c1=3
Full House: r1c1=8
Full House: r7c1=1
Full House: r2c6=1
Full House: r1c4=3
Naked Single: r6c3=2
Full House: r6c2=1
Full House: r8c2=2
Full House: r7c3=4
Full House: r8c7=1
Naked Single: r4c6=9
Full House: r4c3=8
Full House: r5c4=8
Full House: r7c6=3
Full House: r5c3=9
Naked Single: r7c4=9
Full House: r7c9=2
Full House: r9c4=1
Naked Single: r9c7=9
Full House: r1c7=2
Full House: r1c9=9
Full House: r9c9=3
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_345
|
sudoku
|
sudoku_345
| null |
ritvik19
| 44
| 3
|
extremely_hard
|
.51476..8...2.9..1..9.1.24....9..8..34..81.9.6.87.....523.4...9.17..24...8619..5.
|
. 5 1 4 7 6 . . 8
. . . 2 . 9 . . 1
. . 9 . 1 . 2 4 .
. . . 9 . . 8 . .
3 4 . . 8 1 . 9 .
6 . 8 7 . . . . .
5 2 3 . 4 . . . 9
. 1 7 . . 2 4 . .
. 8 6 1 9 . . 5 .
|
251476938834259671769318245175934826342681597698725314523847169917562483486193752
|
251476938834259671769318245175934826342681597698725314523847169917562483486193752 #1 Hard (566)
Naked Single: r1c1=2
Naked Single: r1c8=3
Full House: r1c7=9
Naked Single: r4c2=7
Naked Single: r6c2=9
Naked Single: r8c1=9
Full House: r9c1=4
Naked Single: r2c3=4
Naked Single: r4c1=1
Hidden Single: r2c1=8
Full House: r3c1=7
Hidden Single: r9c9=2
Hidden Single: r5c3=2
Full House: r4c3=5
Hidden Single: r5c9=7
X-Wing: 5 c69 r36 => r3c4,r6c57<>5
Naked Triple: 1,2,3 in r6c578 => r6c69<>3
Skyscraper: 3 in r6c5,r9c6 (connected by r69c7) => r4c6,r8c5<>3
Naked Single: r4c6=4
Naked Single: r6c6=5
Naked Single: r5c4=6
Full House: r5c7=5
Naked Single: r6c9=4
Naked Single: r7c4=8
Naked Single: r3c4=3
Full House: r8c4=5
Naked Single: r7c6=7
Naked Single: r2c5=5
Full House: r3c6=8
Full House: r9c6=3
Full House: r8c5=6
Full House: r9c7=7
Naked Single: r3c2=6
Full House: r2c2=3
Full House: r3c9=5
Naked Single: r8c8=8
Full House: r8c9=3
Full House: r4c9=6
Naked Single: r2c7=6
Full House: r2c8=7
Naked Single: r4c8=2
Full House: r4c5=3
Full House: r6c5=2
Naked Single: r7c7=1
Full House: r6c7=3
Full House: r6c8=1
Full House: r7c8=6
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_384
|
sudoku
|
sudoku_384
| null |
ritvik19
| 41
| 3
|
extremely_hard
|
1...2.5.68.2...39..563..27....5679....91.276326..93.156..93..5..3..5.1.9..5..1..2
|
1 . . . 2 . 5 . 6
8 . 2 . . . 3 9 .
. 5 6 3 . . 2 7 .
. . . 5 6 7 9 . .
. . 9 1 . 2 7 6 3
2 6 . . 9 3 . 1 5
6 . . 9 3 . . 5 .
. 3 . . 5 . 1 . 9
. . 5 . . 1 . . 2
|
173429586842675391956318274314567928589142763267893415621934857738256149495781632
|
173429586842675391956318274314567928589142763267893415621934857738256149495781632 #1 Hard (444)
Hidden Single: r5c1=5
Hidden Single: r6c3=7
Hidden Single: r1c3=3
Hidden Single: r9c8=3
Hidden Single: r4c1=3
Hidden Single: r2c6=5
Hidden Single: r9c7=6
Hidden Single: r4c8=2
Hidden Single: r7c2=2
Hidden Single: r8c4=2
Hidden Single: r7c9=7
Hidden Single: r2c4=6
Hidden Single: r8c6=6
Hidden Single: r7c3=1
Hidden Single: r4c2=1
Hidden Single: r8c1=7
Remote Pair: 4/8 r1c8 -8- r8c8 -4- r8c3 -8- r4c3 -4- r5c2 -8- r5c5 -4- r6c4 -8- r6c7 -4- r7c7 -8- r7c6 => r1c6,r9c4<>4, r1c6,r9c4<>8
Naked Single: r1c6=9
Naked Single: r9c4=7
Hidden Single: r9c2=9
Naked Single: r9c1=4
Full House: r3c1=9
Full House: r8c3=8
Full House: r9c5=8
Full House: r4c3=4
Full House: r8c8=4
Full House: r7c6=4
Full House: r4c9=8
Full House: r5c2=8
Full House: r5c5=4
Full House: r1c8=8
Full House: r7c7=8
Full House: r3c6=8
Full House: r6c7=4
Full House: r6c4=8
Full House: r1c4=4
Full House: r1c2=7
Full House: r2c2=4
Naked Single: r3c5=1
Full House: r2c5=7
Full House: r2c9=1
Full House: r3c9=4
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_291
|
sudoku
|
sudoku_291
| null |
ritvik19
| 41
| 3
|
extremely_hard
|
7..51...66.53....1..478.5.385.437....4..958...67821...57926.......9.3.6.32.1..9.5
|
7 . . 5 1 . . . 6
6 . 5 3 . . . . 1
. . 4 7 8 . 5 . 3
8 5 . 4 3 7 . . .
. 4 . . 9 5 8 . .
. 6 7 8 2 1 . . .
5 7 9 2 6 . . . .
. . . 9 . 3 . 6 .
3 2 . 1 . . 9 . 5
|
738519426695342781214786593852437619143695872967821354579264138481953267326178945
|
738519426695342781214786593852437619143695872967821354579264138481953267326178945 #1 Hard (344)
Full House: r5c4=6
Naked Single: r2c5=4
Naked Single: r6c1=9
Naked Single: r9c5=7
Full House: r8c5=5
Naked Single: r6c9=4
Naked Single: r6c7=3
Full House: r6c8=5
Naked Single: r7c9=8
Naked Single: r7c6=4
Full House: r9c6=8
Naked Single: r9c8=4
Full House: r9c3=6
Naked Single: r7c7=1
Full House: r7c8=3
Hidden Single: r3c6=6
Hidden Single: r4c7=6
Hidden Single: r5c3=3
Hidden Single: r1c2=3
Hidden Single: r8c1=4
Hidden Single: r4c9=9
Hidden Single: r1c7=4
Remote Pair: 2/1 r3c1 -1- r5c1 -2- r4c3 -1- r4c8 => r3c8<>2
Naked Single: r3c8=9
Naked Single: r3c2=1
Full House: r3c1=2
Full House: r5c1=1
Full House: r4c3=2
Full House: r4c8=1
Naked Single: r8c2=8
Full House: r2c2=9
Full House: r1c3=8
Full House: r8c3=1
Naked Single: r2c6=2
Full House: r1c6=9
Full House: r1c8=2
Naked Single: r2c7=7
Full House: r2c8=8
Full House: r5c8=7
Full House: r8c7=2
Full House: r5c9=2
Full House: r8c9=7
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_290
|
sudoku
|
sudoku_290
| null |
ritvik19
| 40
| 3
|
extremely_hard
|
7..5214.6.9176.258562.947.16..43718....18.56....6....417..45....34......9......47
|
7 . . 5 2 1 4 . 6
. 9 1 7 6 . 2 5 8
5 6 2 . 9 4 7 . 1
6 . . 4 3 7 1 8 .
. . . 1 8 . 5 6 .
. . . 6 . . . . 4
1 7 . . 4 5 . . .
. 3 4 . . . . . .
9 . . . . . . 4 7
|
783521496491763258562894731659437182347182569218659374176945823834276915925318647
|
783521496491763258562894731659437182347182569218659374176945823834276915925318647 #1 Unfair (770)
Naked Single: r2c6=3
Full House: r2c1=4
Full House: r3c4=8
Full House: r3c8=3
Full House: r1c8=9
Naked Single: r6c5=5
Naked Single: r1c2=8
Full House: r1c3=3
Naked Single: r9c5=1
Full House: r8c5=7
Naked Single: r7c8=2
Naked Single: r6c8=7
Full House: r8c8=1
Hidden Single: r6c2=1
Hidden Single: r5c2=4
Hidden Single: r8c9=5
Hidden Single: r5c3=7
Locked Candidates Type 1 (Pointing): 2 in b5 => r89c6<>2
Locked Candidates Type 1 (Pointing): 9 in b5 => r8c6<>9
Naked Pair: 3,9 in r7c49 => r7c7<>3, r7c7<>9
W-Wing: 8/6 in r7c7,r9c6 connected by 6 in r8c67 => r9c7<>8
XY-Chain: 8 8- r6c3 -9- r4c3 -5- r4c2 -2- r4c9 -9- r7c9 -3- r7c4 -9- r8c4 -2- r8c1 -8 => r6c1,r79c3<>8
Naked Single: r7c3=6
Naked Single: r7c7=8
Naked Single: r9c3=5
Naked Single: r4c3=9
Full House: r6c3=8
Naked Single: r9c2=2
Full House: r4c2=5
Full House: r4c9=2
Full House: r8c1=8
Naked Single: r9c4=3
Naked Single: r8c6=6
Naked Single: r7c4=9
Full House: r7c9=3
Full House: r8c4=2
Full House: r8c7=9
Full House: r9c7=6
Full House: r9c6=8
Full House: r5c9=9
Full House: r6c7=3
Naked Single: r5c6=2
Full House: r5c1=3
Full House: r6c1=2
Full House: r6c6=9
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_255
|
sudoku
|
sudoku_255
| null |
ritvik19
| 42
| 3
|
extremely_hard
|
..53..14.......938..896.7.5529.48361.63.9..8..8.13.5....1.2387....67.21.......65.
|
. . 5 3 . . 1 4 .
. . . . . . 9 3 8
. . 8 9 6 . 7 . 5
5 2 9 . 4 8 3 6 1
. 6 3 . 9 . . 8 .
. 8 . 1 3 . 5 . .
. . 1 . 2 3 8 7 .
. . . 6 7 . 2 1 .
. . . . . . 6 5 .
|
975382146216457938348961725529748361163295487487136592691523874854679213732814659
|
975382146216457938348961725529748361163295487487136592691523874854679213732814659 #1 Hard (438)
Full House: r4c4=7
Full House: r5c7=4
Naked Single: r3c8=2
Full House: r1c9=6
Full House: r6c8=9
Naked Single: r1c5=8
Naked Single: r8c3=4
Naked Single: r9c5=1
Full House: r2c5=5
Naked Single: r6c3=7
Naked Single: r5c1=1
Full House: r6c1=4
Naked Single: r6c9=2
Full House: r5c9=7
Full House: r6c6=6
Naked Single: r9c3=2
Full House: r2c3=6
Naked Single: r3c1=3
Hidden Single: r9c4=8
Hidden Single: r8c1=8
Hidden Single: r7c1=6
Naked Triple: 2,7,9 in r1c12,r2c1 => r2c2<>7
XY-Wing: 4/5/9 in r7c24,r9c6 => r9c12<>9
Naked Single: r9c1=7
Naked Single: r2c1=2
Full House: r1c1=9
Naked Single: r9c2=3
Naked Single: r2c4=4
Naked Single: r1c2=7
Full House: r1c6=2
Naked Single: r2c2=1
Full House: r2c6=7
Full House: r3c6=1
Full House: r3c2=4
Naked Single: r7c4=5
Full House: r5c4=2
Full House: r5c6=5
Naked Single: r7c2=9
Full House: r7c9=4
Full House: r8c2=5
Naked Single: r8c6=9
Full House: r8c9=3
Full House: r9c9=9
Full House: r9c6=4
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_318
|
sudoku
|
sudoku_318
| null |
ritvik19
| 40
| 3
|
extremely_hard
|
..71.5..8...896..75.84..12.1..978....865.127..7...2.8.72.6538..6.4.8..3.8..7.469.
|
. . 7 1 . 5 . . 8
. . . 8 9 6 . . 7
5 . 8 4 . . 1 2 .
1 . . 9 7 8 . . .
. 8 6 5 . 1 2 7 .
. 7 . . . 2 . 8 .
7 2 . 6 5 3 8 . .
6 . 4 . 8 . . 3 .
8 . . 7 . 4 6 9 .
|
397125468241896357568437129132978546986541273475362981729653814614289735853714692
|
397125468241896357568437129132978546986541273475362981729653814614289735853714692 #1 Hard (640)
Naked Single: r3c5=3
Naked Single: r6c4=3
Full House: r8c4=2
Naked Single: r3c6=7
Full House: r8c6=9
Full House: r1c5=2
Full House: r9c5=1
Naked Single: r5c5=4
Full House: r6c5=6
Hidden Single: r6c9=1
Naked Single: r7c9=4
Naked Single: r8c9=5
Naked Single: r7c8=1
Full House: r7c3=9
Naked Single: r8c2=1
Full House: r8c7=7
Full House: r9c9=2
Naked Single: r6c3=5
Naked Single: r9c3=3
Full House: r9c2=5
Naked Single: r4c3=2
Full House: r2c3=1
Hidden Single: r2c1=2
Locked Candidates Type 1 (Pointing): 3 in b3 => r4c7<>3
Locked Candidates Type 1 (Pointing): 9 in b4 => r1c1<>9
Naked Pair: 3,4 in r1c1,r2c2 => r1c2<>3, r1c2<>4
2-String Kite: 4 in r2c2,r6c7 (connected by r4c2,r6c1) => r2c7<>4
W-Wing: 5/4 in r2c8,r4c7 connected by 4 in r24c2 => r2c7,r4c8<>5
Naked Single: r2c7=3
Naked Single: r2c2=4
Full House: r2c8=5
Naked Single: r1c1=3
Naked Single: r4c2=3
Naked Single: r5c1=9
Full House: r5c9=3
Full House: r6c1=4
Full House: r6c7=9
Naked Single: r4c9=6
Full House: r3c9=9
Full House: r3c2=6
Full House: r1c2=9
Naked Single: r1c7=4
Full House: r1c8=6
Full House: r4c8=4
Full House: r4c7=5
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_257
|
sudoku
|
sudoku_257
| null |
ritvik19
| 30
| 2
|
hard
|
6.7....5...8....1...43...7.185963427426...391793..2568571...239869...745342579186
|
6 . 7 . . . . 5 .
. . 8 . . . . 1 .
. . 4 3 . . . 7 .
1 8 5 9 6 3 4 2 7
4 2 6 . . . 3 9 1
7 9 3 . . 2 5 6 8
5 7 1 . . . 2 3 9
8 6 9 . . . 7 4 5
3 4 2 5 7 9 1 8 6
|
617428953238795614954316872185963427426857391793142568571684239869231745342579186
|
617428953238795614954316872185963427426857391793142568571684239869231745342579186 #1 Hard (330)
Naked Single: r8c6=1
Naked Single: r3c9=2
Naked Single: r8c4=2
Full House: r8c5=3
Naked Single: r3c1=9
Full House: r2c1=2
Hidden Single: r1c5=2
Hidden Single: r1c7=9
Naked Single: r2c7=6
Full House: r3c7=8
Hidden Single: r2c5=9
Hidden Single: r7c4=6
Hidden Single: r3c6=6
Naked Pair: 4,8 in r17c6 => r2c6<>4, r5c6<>8
Bivalue Universal Grave + 1 => r1c4<>1, r1c4<>8
Naked Single: r1c4=4
Naked Single: r1c6=8
Naked Single: r1c9=3
Full House: r1c2=1
Full House: r2c9=4
Naked Single: r2c4=7
Naked Single: r6c4=1
Full House: r5c4=8
Full House: r6c5=4
Naked Single: r7c6=4
Full House: r7c5=8
Naked Single: r3c2=5
Full House: r2c2=3
Full House: r2c6=5
Full House: r3c5=1
Full House: r5c5=5
Full House: r5c6=7
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_102
|
sudoku
|
sudoku_102
| null |
ritvik19
| 21
| 2
|
hard
|
167245..3953187462824693715638472159712956348495...276.....4..1.41.695.7..6....34
|
1 6 7 2 4 5 . . 3
9 5 3 1 8 7 4 6 2
8 2 4 6 9 3 7 1 5
6 3 8 4 7 2 1 5 9
7 1 2 9 5 6 3 4 8
4 9 5 . . . 2 7 6
. . . . . 4 . . 1
. 4 1 . 6 9 5 . 7
. . 6 . . . . 3 4
|
167245893953187462824693715638472159712956348495318276279534681341869527586721934
|
167245893953187462824693715638472159712956348495318276279534681341869527586721934 #1 Hard (264)
Full House: r7c3=9
Hidden Single: r7c7=6
Hidden Single: r9c7=9
Full House: r1c7=8
Full House: r1c8=9
Naked Pair: 3,8 in r68c4 => r7c4<>3, r79c4<>8
Bivalue Universal Grave + 1 => r7c1<>3, r7c1<>5
Naked Single: r7c1=2
Naked Single: r7c5=3
Naked Single: r7c8=8
Full House: r8c8=2
Naked Single: r8c1=3
Full House: r9c1=5
Full House: r8c4=8
Naked Single: r6c5=1
Full House: r9c5=2
Naked Single: r7c2=7
Full House: r7c4=5
Full House: r9c2=8
Naked Single: r9c4=7
Full House: r6c4=3
Full House: r9c6=1
Full House: r6c6=8
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_15
|
sudoku
|
sudoku_15
| null |
ritvik19
| 26
| 2
|
hard
|
6..823147.8.614529.1.5976835..361278.3.752496...489351....7596...6.3871.9...4683.
|
6 . . 8 2 3 1 4 7
. 8 . 6 1 4 5 2 9
. 1 . 5 9 7 6 8 3
5 . . 3 6 1 2 7 8
. 3 . 7 5 2 4 9 6
. . . 4 8 9 3 5 1
. . . . 7 5 9 6 .
. . 6 . 3 8 7 1 .
9 . . . 4 6 8 3 .
|
695823147387614529214597683549361278138752496762489351823175964456938712971246835
|
695823147387614529214597683549361278138752496762489351823175964456938712971246835 #1 Medium (184)
Hidden Single: r6c2=6
Hidden Single: r8c4=9
Hidden Single: r9c2=7
Locked Candidates Type 2 (Claiming): 2 in c2 => r7c13,r8c1,r9c3<>2
Naked Single: r8c1=4
Naked Single: r3c1=2
Full House: r3c3=4
Naked Single: r7c2=2
Naked Single: r6c1=7
Full House: r6c3=2
Naked Single: r4c3=9
Full House: r4c2=4
Naked Single: r7c4=1
Full House: r9c4=2
Naked Single: r7c9=4
Naked Single: r8c2=5
Full House: r1c2=9
Full House: r1c3=5
Full House: r8c9=2
Full House: r9c9=5
Full House: r9c3=1
Naked Single: r2c1=3
Full House: r2c3=7
Naked Single: r5c3=8
Full House: r5c1=1
Full House: r7c1=8
Full House: r7c3=3
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_66
|
sudoku
|
sudoku_66
| null |
ritvik19
| 29
| 2
|
hard
|
.4.621835283759146...834..21342685...2.175463..694321.....9762...2.16......48235.
|
. 4 . 6 2 1 8 3 5
2 8 3 7 5 9 1 4 6
. . . 8 3 4 . . 2
1 3 4 2 6 8 5 . .
. 2 . 1 7 5 4 6 3
. . 6 9 4 3 2 1 .
. . . . 9 7 6 2 .
. . 2 . 1 6 . . .
. . . 4 8 2 3 5 .
|
947621835283759146615834972134268597829175463576943218458397621392516784761482359
|
947621835283759146615834972134268597829175463576943218458397621392516784761482359 #1 Medium (366)
Hidden Single: r6c9=8
Hidden Single: r8c8=8
Locked Candidates Type 1 (Pointing): 7 in b3 => r3c123<>7
Locked Candidates Type 1 (Pointing): 9 in b3 => r3c123<>9
Locked Candidates Type 2 (Claiming): 9 in c2 => r89c1,r9c3<>9
Naked Triple: 5,6,7 in r369c1 => r18c1<>7, r78c1<>5
Naked Single: r1c1=9
Full House: r1c3=7
Naked Single: r5c1=8
Full House: r5c3=9
Naked Single: r9c3=1
Naked Single: r3c3=5
Full House: r7c3=8
Naked Single: r7c2=5
Naked Single: r3c1=6
Full House: r3c2=1
Naked Single: r6c2=7
Full House: r6c1=5
Naked Single: r7c4=3
Full House: r8c4=5
Naked Single: r9c1=7
Naked Single: r8c2=9
Full House: r9c2=6
Full House: r9c9=9
Naked Single: r7c1=4
Full House: r7c9=1
Full House: r8c1=3
Naked Single: r8c7=7
Full House: r3c7=9
Full House: r8c9=4
Full House: r4c9=7
Full House: r3c8=7
Full House: r4c8=9
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_91
|
sudoku
|
sudoku_91
| null |
ritvik19
| 28
| 2
|
hard
|
...8.71...876.15.316.45378..9.1..457...7..918...9..326845376291623519874...284635
|
. . . 8 . 7 1 . .
. 8 7 6 . 1 5 . 3
1 6 . 4 5 3 7 8 .
. 9 . 1 . . 4 5 7
. . . 7 . . 9 1 8
. . . 9 . . 3 2 6
8 4 5 3 7 6 2 9 1
6 2 3 5 1 9 8 7 4
. . . 2 8 4 6 3 5
|
534827169287691543169453782392168457456732918718945326845376291623519874971284635
|
534827169287691543169453782392168457456732918718945326845376291623519874971284635 #1 Hard (392)
Naked Single: r2c8=4
Full House: r1c8=6
Naked Single: r6c5=4
Locked Candidates Type 1 (Pointing): 2 in b2 => r45c5<>2
Naked Pair: 2,9 in r2c1,r3c3 => r1c13<>2, r1c13<>9
Naked Single: r1c3=4
Hidden Single: r5c1=4
Naked Pair: 3,5 in r15c2 => r6c2<>5
Bivalue Universal Grave + 1 => r4c3<>6, r4c3<>8
Naked Single: r4c3=2
Naked Single: r3c3=9
Full House: r3c9=2
Full House: r1c9=9
Naked Single: r4c1=3
Naked Single: r4c6=8
Full House: r4c5=6
Naked Single: r5c3=6
Naked Single: r2c1=2
Full House: r2c5=9
Full House: r1c5=2
Full House: r5c5=3
Naked Single: r9c3=1
Full House: r6c3=8
Naked Single: r1c1=5
Full House: r1c2=3
Naked Single: r5c2=5
Full House: r5c6=2
Full House: r6c6=5
Naked Single: r9c2=7
Full House: r6c2=1
Full House: r6c1=7
Full House: r9c1=9
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_81
|
sudoku
|
sudoku_81
| null |
ritvik19
| 29
| 2
|
hard
|
592...1.431......778......38734..5.96419..8.2259..8346127359468435...921968..4735
|
5 9 2 . . . 1 . 4
3 1 . . . . . . 7
7 8 . . . . . . 3
8 7 3 4 . . 5 . 9
6 4 1 9 . . 8 . 2
2 5 9 . . 8 3 4 6
1 2 7 3 5 9 4 6 8
4 3 5 . . . 9 2 1
9 6 8 . . 4 7 3 5
|
592763184314892657786541293873426519641935872259178346127359468435687921968214735
|
592763184314892657786541293873426519641935872259178346127359468435687921968214735 #1 Medium (196)
Naked Single: r5c8=7
Full House: r4c8=1
Naked Single: r1c8=8
Naked Single: r5c5=3
Full House: r5c6=5
Hidden Single: r3c6=1
Hidden Single: r1c6=3
Hidden Single: r8c6=7
Locked Candidates Type 2 (Claiming): 6 in r1 => r2c456,r3c45<>6
Naked Single: r2c6=2
Full House: r4c6=6
Full House: r4c5=2
Naked Single: r2c7=6
Full House: r3c7=2
Naked Single: r3c4=5
Naked Single: r9c5=1
Full House: r9c4=2
Naked Single: r2c3=4
Full House: r3c3=6
Naked Single: r2c4=8
Naked Single: r3c8=9
Full House: r2c8=5
Full House: r2c5=9
Full House: r3c5=4
Naked Single: r6c5=7
Full House: r6c4=1
Naked Single: r8c4=6
Full House: r1c4=7
Full House: r1c5=6
Full House: r8c5=8
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_96
|
sudoku
|
sudoku_96
| null |
ritvik19
| 26
| 2
|
hard
|
.95...6.4863.2.5.1741...2.3.2....15915.9.28366395187429142..365386...9275723..418
|
. 9 5 . . . 6 . 4
8 6 3 . 2 . 5 . 1
7 4 1 . . . 2 . 3
. 2 . . . . 1 5 9
1 5 . 9 . 2 8 3 6
6 3 9 5 1 8 7 4 2
9 1 4 2 . . 3 6 5
3 8 6 . . . 9 2 7
5 7 2 3 . . 4 1 8
|
295731684863429571741865293428673159157942836639518742914287365386154927572396418
|
295731684863429571741865293428673159157942836639518742914287365386154927572396418 #1 Hard (274)
Full House: r1c1=2
Full House: r4c1=4
Naked Single: r5c3=7
Full House: r4c3=8
Full House: r5c5=4
Naked Single: r7c6=7
Full House: r7c5=8
Naked Single: r8c5=5
Hidden Single: r3c6=5
Naked Pair: 6,9 in r39c5 => r4c5<>6
Bivalue Universal Grave + 1 => r1c4<>1, r1c4<>8
Naked Single: r1c4=7
Naked Single: r1c5=3
Naked Single: r1c8=8
Full House: r1c6=1
Naked Single: r2c4=4
Naked Single: r4c4=6
Naked Single: r4c5=7
Full House: r4c6=3
Naked Single: r3c8=9
Full House: r2c8=7
Full House: r2c6=9
Naked Single: r8c6=4
Full House: r8c4=1
Full House: r3c4=8
Full House: r3c5=6
Full House: r9c6=6
Full House: r9c5=9
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_61
|
sudoku
|
sudoku_61
| null |
ritvik19
| 31
| 2
|
hard
|
547.8.9.28..9274..2..54.1.73......4.6....8.1.7....28..92.615374136274598475839621
|
5 4 7 . 8 . 9 . 2
8 . . 9 2 7 4 . .
2 . . 5 4 . 1 . 7
3 . . . . . . 4 .
6 . . . . 8 . 1 .
7 . . . . 2 8 . .
9 2 . 6 1 5 3 7 4
1 3 6 2 7 4 5 9 8
4 7 5 8 3 9 6 2 1
|
547183962861927435293546187389751246652498713714362859928615374136274598475839621
|
547183962861927435293546187389751246652498713714362859928615374136274598475839621 #1 Medium (194)
Full House: r7c3=8
Hidden Single: r3c8=8
Hidden Single: r4c2=8
Locked Candidates Type 1 (Pointing): 6 in b2 => r4c6<>6
Naked Single: r4c6=1
Naked Single: r4c4=7
Naked Single: r4c7=2
Full House: r5c7=7
Naked Single: r4c3=9
Naked Single: r3c3=3
Naked Single: r5c2=5
Naked Single: r2c3=1
Naked Single: r3c6=6
Full House: r1c6=3
Full House: r3c2=9
Full House: r2c2=6
Full House: r6c2=1
Full House: r1c4=1
Full House: r1c8=6
Naked Single: r5c5=9
Naked Single: r6c3=4
Full House: r5c3=2
Naked Single: r5c9=3
Full House: r5c4=4
Full House: r6c4=3
Naked Single: r2c9=5
Full House: r2c8=3
Full House: r6c8=5
Naked Single: r4c9=6
Full House: r4c5=5
Full House: r6c5=6
Full House: r6c9=9
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_118
|
sudoku
|
sudoku_118
| null |
ritvik19
| 31
| 2
|
hard
|
526.837.4..8.6253.93....268351278946689354127...6..38549583.6.28...2.4........8..
|
5 2 6 . 8 3 7 . 4
. . 8 . 6 2 5 3 .
9 3 . . . . 2 6 8
3 5 1 2 7 8 9 4 6
6 8 9 3 5 4 1 2 7
. . . 6 . . 3 8 5
4 9 5 8 3 . 6 . 2
8 . . . 2 . 4 . .
. . . . . . 8 . .
|
526983714148762539937145268351278946689354127274619385495831672863527491712496853
|
526983714148762539937145268351278946689354127274619385495831672863527491712496853 #1 Medium (174)
Locked Candidates Type 1 (Pointing): 1 in b1 => r2c49<>1
Naked Single: r2c9=9
Full House: r1c8=1
Full House: r1c4=9
Naked Single: r7c8=7
Full House: r7c6=1
Naked Single: r6c6=9
Full House: r6c5=1
Naked Single: r3c5=4
Full House: r9c5=9
Naked Single: r2c4=7
Naked Single: r3c3=7
Naked Single: r9c8=5
Full House: r8c8=9
Naked Single: r2c1=1
Full House: r2c2=4
Naked Single: r3c6=5
Full House: r3c4=1
Naked Single: r8c4=5
Full House: r9c4=4
Naked Single: r8c3=3
Naked Single: r6c2=7
Naked Single: r8c9=1
Full House: r9c9=3
Naked Single: r9c3=2
Full House: r6c3=4
Full House: r6c1=2
Full House: r9c1=7
Naked Single: r8c2=6
Full House: r8c6=7
Full House: r9c6=6
Full House: r9c2=1
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_111
|
sudoku
|
sudoku_111
| null |
ritvik19
| 25
| 2
|
hard
|
3698254714187..52.25714..3887.46..955....8.6793651728478..5..1.195.7.8436...8.75.
|
3 6 9 8 2 5 4 7 1
4 1 8 7 . . 5 2 .
2 5 7 1 4 . . 3 8
8 7 . 4 6 . . 9 5
5 . . . . 8 . 6 7
9 3 6 5 1 7 2 8 4
7 8 . . 5 . . 1 .
1 9 5 . 7 . 8 4 3
6 . . . 8 . 7 5 .
|
369825471418739526257146938872463195541298367936517284783954612195672843624381759
|
369825471418739526257146938872463195541298367936517284783954612195672843624381759 #1 Medium (170)
Hidden Single: r9c6=1
Hidden Single: r7c6=4
Locked Candidates Type 1 (Pointing): 6 in b2 => r8c6<>6
Naked Single: r8c6=2
Full House: r8c4=6
Naked Single: r4c6=3
Naked Single: r4c7=1
Full House: r4c3=2
Full House: r5c7=3
Naked Single: r5c5=9
Full House: r2c5=3
Full House: r5c4=2
Naked Single: r5c2=4
Full House: r5c3=1
Full House: r9c2=2
Naked Single: r7c3=3
Full House: r9c3=4
Naked Single: r9c9=9
Full House: r9c4=3
Full House: r7c4=9
Naked Single: r2c9=6
Full House: r2c6=9
Full House: r3c7=9
Full House: r7c7=6
Full House: r7c9=2
Full House: r3c6=6
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_57
|
sudoku
|
sudoku_57
| null |
ritvik19
| 31
| 3
|
extremely_hard
|
914587236382...7955673..1487.3......8...7....2.....8..438716529625.3.417179.5.6.3
|
9 1 4 5 8 7 2 3 6
3 8 2 . . . 7 9 5
5 6 7 3 . . 1 4 8
7 . 3 . . . . . .
8 . . . 7 . . . .
2 . . . . . 8 . .
4 3 8 7 1 6 5 2 9
6 2 5 . 3 . 4 1 7
1 7 9 . 5 . 6 . 3
|
914587236382641795567329148743862951891475362256193874438716529625938417179254683
|
914587236382641795567329148743862951891475362256193874438716529625938417179254683 #1 Unfair (1184)
Full House: r9c8=8
Naked Single: r4c7=9
Full House: r5c7=3
Hidden Single: r6c8=7
Hidden Single: r6c6=3
Hidden Single: r6c2=5
Naked Single: r4c2=4
Full House: r5c2=9
Uniqueness Test 3: 2/4 in r5c46,r9c46 => r5c9<>1
XY-Chain: 4 4- r2c5 -6- r4c5 -2- r3c5 -9- r3c6 -2- r9c6 -4 => r2c6<>4
Naked Single: r2c6=1
W-Wing: 2/4 in r5c9,r9c4 connected by 4 in r59c6 => r5c4<>2
XY-Chain: 4 4- r2c5 -6- r4c5 -2- r4c9 -1- r6c9 -4 => r6c5<>4
Hidden Single: r2c5=4
Full House: r2c4=6
W-Wing: 4/1 in r5c4,r6c9 connected by 1 in r4c49 => r5c9,r6c4<>4
Naked Single: r5c9=2
Naked Single: r4c9=1
Full House: r6c9=4
Bivalue Universal Grave + 1 => r4c6<>5, r4c6<>8
Naked Single: r4c6=2
Naked Single: r3c6=9
Full House: r3c5=2
Naked Single: r4c4=8
Naked Single: r4c5=6
Full House: r4c8=5
Full House: r6c5=9
Full House: r5c8=6
Naked Single: r9c6=4
Full House: r9c4=2
Naked Single: r8c6=8
Full House: r8c4=9
Full House: r5c6=5
Naked Single: r6c4=1
Full House: r5c4=4
Full House: r5c3=1
Full House: r6c3=6
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_119
|
sudoku
|
sudoku_119
| null |
ritvik19
| 22
| 2
|
hard
|
478236951612597438539418276..5....84..7.4...3..4..57.9953784..2741...895826159347
|
4 7 8 2 3 6 9 5 1
6 1 2 5 9 7 4 3 8
5 3 9 4 1 8 2 7 6
. . 5 . . . . 8 4
. . 7 . 4 . . . 3
. . 4 . . 5 7 . 9
9 5 3 7 8 4 . . 2
7 4 1 . . . 8 9 5
8 2 6 1 5 9 3 4 7
|
478236951612597438539418276365972184297841563184365729953784612741623895826159347
|
478236951612597438539418276365972184297841563184365729953784612741623895826159347 #1 Medium (168)
Hidden Single: r5c7=5
Hidden Single: r4c5=7
Naked Pair: 1,2 in r5c16 => r5c8<>1, r5c8<>2
Naked Single: r5c8=6
Naked Single: r4c7=1
Full House: r6c8=2
Full House: r7c8=1
Full House: r7c7=6
Naked Single: r6c5=6
Full House: r8c5=2
Naked Single: r6c2=8
Naked Single: r8c6=3
Full House: r8c4=6
Naked Single: r5c2=9
Full House: r4c2=6
Naked Single: r6c4=3
Full House: r6c1=1
Naked Single: r4c6=2
Full House: r5c6=1
Naked Single: r5c4=8
Full House: r4c4=9
Full House: r5c1=2
Full House: r4c1=3
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_26
|
sudoku
|
sudoku_26
| null |
ritvik19
| 25
| 2
|
hard
|
514972683...354719739861254..5..7..6.....5.276....38...4.739561967518..2153246978
|
5 1 4 9 7 2 6 8 3
. . . 3 5 4 7 1 9
7 3 9 8 6 1 2 5 4
. . 5 . . 7 . . 6
. . . . . 5 . 2 7
6 . . . . 3 8 . .
. 4 . 7 3 9 5 6 1
9 6 7 5 1 8 . . 2
1 5 3 2 4 6 9 7 8
|
514972683826354719739861254385427196491685327672193845248739561967518432153246978
|
514972683826354719739861254385427196491685327672193845248739561967518432153246978 #1 Medium (190)
Full House: r6c9=5
Hidden Single: r5c4=6
Hidden Single: r2c3=6
Hidden Single: r6c2=7
Naked Pair: 8,9 in r5c25 => r5c13<>8
Naked Single: r5c3=1
Naked Single: r6c3=2
Full House: r7c3=8
Full House: r7c1=2
Naked Single: r6c5=9
Naked Single: r2c1=8
Full House: r2c2=2
Naked Single: r5c5=8
Full House: r4c5=2
Naked Single: r6c8=4
Full House: r6c4=1
Full House: r4c4=4
Naked Single: r5c2=9
Full House: r4c2=8
Naked Single: r5c7=3
Full House: r5c1=4
Full House: r4c1=3
Naked Single: r8c8=3
Full House: r4c8=9
Full House: r4c7=1
Full House: r8c7=4
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_50
|
sudoku
|
sudoku_50
| null |
ritvik19
| 27
| 2
|
hard
|
916.7.5..825943617437156...253.9..4.681.3...9794.2....342.8....179.6.485568419372
|
9 1 6 . 7 . 5 . .
8 2 5 9 4 3 6 1 7
4 3 7 1 5 6 . . .
2 5 3 . 9 . . 4 .
6 8 1 . 3 . . . 9
7 9 4 . 2 . . . .
3 4 2 . 8 . . . .
1 7 9 . 6 . 4 8 5
5 6 8 4 1 9 3 7 2
|
916278534825943617437156298253897146681534729794621853342785961179362485568419372
|
916278534825943617437156298253897146681534729794621853342785961179362485568419372 #1 Hard (288)
Naked Single: r8c6=2
Full House: r8c4=3
Naked Single: r3c9=8
Naked Single: r1c6=8
Full House: r1c4=2
Naked Single: r1c8=3
Full House: r1c9=4
Hidden Single: r5c6=4
Hidden Single: r6c9=3
Naked Pair: 5,7 in r57c4 => r4c4<>7, r6c4<>5
Bivalue Universal Grave + 1 => r4c7<>7, r4c7<>8
Naked Single: r4c7=1
Naked Single: r4c6=7
Naked Single: r4c9=6
Full House: r4c4=8
Full House: r7c9=1
Naked Single: r6c7=8
Naked Single: r7c7=9
Full House: r7c8=6
Naked Single: r5c4=5
Naked Single: r7c6=5
Full House: r6c6=1
Full House: r6c4=6
Full House: r6c8=5
Full House: r7c4=7
Naked Single: r3c7=2
Full House: r3c8=9
Full House: r5c8=2
Full House: r5c7=7
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_73
|
sudoku
|
sudoku_73
| null |
ritvik19
| 24
| 2
|
hard
|
934.....1.8.4..3.........4.249...1851735486..856291437398156274721984563465732918
|
9 3 4 . . . . . 1
. 8 . 4 . . 3 . .
. . . . . . . 4 .
2 4 9 . . . 1 8 5
1 7 3 5 4 8 6 . .
8 5 6 2 9 1 4 3 7
3 9 8 1 5 6 2 7 4
7 2 1 9 8 4 5 6 3
4 6 5 7 3 2 9 1 8
|
934865721682417359517329846249673185173548692856291437398156274721984563465732918
|
934865721682417359517329846249673185173548692856291437398156274721984563465732918 #1 Medium (216)
Full House: r3c2=1
Hidden Single: r2c5=1
Locked Candidates Type 2 (Claiming): 6 in r1 => r3c45<>6
Naked Pair: 2,7 in r3c35 => r3c67<>7, r3c9<>2
Naked Single: r3c7=8
Full House: r1c7=7
Naked Single: r3c4=3
Naked Single: r1c6=5
Naked Single: r4c4=6
Full House: r1c4=8
Naked Single: r1c8=2
Full House: r1c5=6
Naked Single: r3c6=9
Naked Single: r4c5=7
Full House: r3c5=2
Full House: r2c6=7
Full House: r4c6=3
Naked Single: r5c8=9
Full House: r2c8=5
Full House: r5c9=2
Naked Single: r3c9=6
Full House: r2c9=9
Naked Single: r3c3=7
Full House: r2c3=2
Full House: r2c1=6
Full House: r3c1=5
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_46
|
sudoku
|
sudoku_46
| null |
ritvik19
| 36
| 3
|
extremely_hard
|
2..5396.....461972...72835....1932.71.287453..3.6528..3..24.1....198.4.....3.578.
|
2 . . 5 3 9 6 . .
. . . 4 6 1 9 7 2
. . . 7 2 8 3 5 .
. . . 1 9 3 2 . 7
1 . 2 8 7 4 5 3 .
. 3 . 6 5 2 8 . .
3 . . 2 4 . 1 . .
. . 1 9 8 . 4 . .
. . . 3 . 5 7 8 .
|
217539648583461972496728351845193267162874539739652814378246195651987423924315786
|
217539648583461972496728351845193267162874539739652814378246195651987423924315786 #1 Hard (394)
Full House: r9c5=1
Hidden Single: r2c3=3
Hidden Single: r8c9=3
Hidden Single: r1c9=8
Hidden Single: r9c2=2
Hidden Single: r8c8=2
Hidden Single: r7c9=5
Hidden Single: r4c3=5
Hidden Single: r7c3=8
Naked Pair: 6,9 in r59c9 => r6c9<>9
Remote Pair: 6/9 r5c2 -9- r5c9 -6- r9c9 -9- r7c8 => r7c2<>6, r7c2<>9
Naked Single: r7c2=7
Naked Single: r7c6=6
Full House: r7c8=9
Full House: r8c6=7
Full House: r9c9=6
Naked Single: r5c9=9
Full House: r5c2=6
Naked Single: r8c2=5
Full House: r8c1=6
Naked Single: r2c2=8
Full House: r2c1=5
Naked Single: r4c2=4
Naked Single: r1c2=1
Full House: r3c2=9
Naked Single: r4c1=8
Full House: r4c8=6
Naked Single: r1c8=4
Full House: r1c3=7
Full House: r3c9=1
Full House: r6c8=1
Full House: r6c9=4
Naked Single: r3c1=4
Full House: r3c3=6
Naked Single: r6c3=9
Full House: r6c1=7
Full House: r9c1=9
Full House: r9c3=4
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_163
|
sudoku
|
sudoku_163
| null |
ritvik19
| 37
| 2
|
hard
|
579.8.46138461..5..1...5.3..9....51343..51.96165.......5.13.6...235.71...418..375
|
5 7 9 . 8 . 4 6 1
3 8 4 6 1 . . 5 .
. 1 . . . 5 . 3 .
. 9 . . . . 5 1 3
4 3 . . 5 1 . 9 6
1 6 5 . . . . . .
. 5 . 1 3 . 6 . .
. 2 3 5 . 7 1 . .
. 4 1 8 . . 3 7 5
|
579382461384619257216745938792468513438251796165973842857134629623597184941826375
|
579382461384619257216745938792468513438251796165973842857134629623597184941826375 #1 Medium (288)
Hidden Single: r3c3=6
Full House: r3c1=2
Locked Candidates Type 1 (Pointing): 7 in b2 => r3c79<>7
Locked Pair: 8,9 in r3c79 => r2c79,r3c45<>9
Hidden Single: r6c4=9
Hidden Single: r2c6=9
Hidden Single: r3c7=9
Naked Single: r3c9=8
Hidden Single: r6c6=3
Naked Single: r1c6=2
Full House: r1c4=3
Naked Single: r7c6=4
Naked Single: r9c6=6
Full House: r4c6=8
Naked Single: r8c5=9
Full House: r9c5=2
Full House: r9c1=9
Naked Single: r4c1=7
Naked Single: r8c9=4
Naked Single: r4c3=2
Full House: r5c3=8
Full House: r7c3=7
Naked Single: r7c1=8
Full House: r8c1=6
Full House: r8c8=8
Naked Single: r4c4=4
Full House: r4c5=6
Naked Single: r7c8=2
Full House: r6c8=4
Full House: r7c9=9
Naked Single: r3c4=7
Full House: r3c5=4
Full House: r6c5=7
Full House: r5c4=2
Full House: r5c7=7
Naked Single: r6c9=2
Full House: r2c9=7
Full House: r2c7=2
Full House: r6c7=8
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_173
|
sudoku
|
sudoku_173
| null |
ritvik19
| 34
| 2
|
hard
|
....3458.....5241..54.1963..6.42597....973......186.2....2681..5263417981.859726.
|
. . . . 3 4 5 8 .
. . . . 5 2 4 1 .
. 5 4 . 1 9 6 3 .
. 6 . 4 2 5 9 7 .
. . . 9 7 3 . . .
. . . 1 8 6 . 2 .
. . . 2 6 8 1 . .
5 2 6 3 4 1 7 9 8
1 . 8 5 9 7 2 6 .
|
691734582387652419254819637863425971412973856975186324739268145526341798148597263
|
691734582387652419254819637863425971412973856975186324739268145526341798148597263 #1 Medium (256)
Naked Single: r6c7=3
Full House: r5c7=8
Naked Single: r4c9=1
Naked Single: r4c3=3
Full House: r4c1=8
Hidden Single: r5c9=6
Hidden Single: r2c2=8
Hidden Single: r3c4=8
Hidden Single: r2c1=3
Hidden Single: r2c4=6
Full House: r1c4=7
Hidden Single: r1c1=6
Naked Pair: 7,9 in r27c3 => r16c3<>9, r6c3<>7
Naked Single: r6c3=5
Naked Single: r6c9=4
Full House: r5c8=5
Full House: r7c8=4
Naked Single: r9c9=3
Full House: r7c9=5
Full House: r9c2=4
Naked Single: r5c2=1
Naked Single: r1c2=9
Naked Single: r5c3=2
Full House: r5c1=4
Naked Single: r1c9=2
Full House: r1c3=1
Naked Single: r2c3=7
Full House: r2c9=9
Full House: r3c9=7
Full House: r3c1=2
Full House: r7c3=9
Naked Single: r6c2=7
Full House: r6c1=9
Full House: r7c1=7
Full House: r7c2=3
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_141
|
sudoku
|
sudoku_141
| null |
ritvik19
| 38
| 2
|
hard
|
.6.8.359....56...4.539.462.1..7.6.4.3..4...6.642398715....35.7.5...491...3.187.56
|
. 6 . 8 . 3 5 9 .
. . . 5 6 . . . 4
. 5 3 9 . 4 6 2 .
1 . . 7 . 6 . 4 .
3 . . 4 . . . 6 .
6 4 2 3 9 8 7 1 5
. . . . 3 5 . 7 .
5 . . . 4 9 1 . .
. 3 . 1 8 7 . 5 6
|
461823597729561384853974621198756243375412869642398715916235478587649132234187956
|
461823597729561384853974621198756243375412869642398715916235478587649132234187956 #1 Medium (312)
Locked Pair: 3,8 in r2c78 => r2c123,r3c9<>8
Hidden Single: r3c1=8
Locked Candidates Type 2 (Claiming): 7 in r2 => r1c13<>7
Hidden Single: r2c1=7
Locked Candidates Type 2 (Claiming): 9 in c1 => r7c23,r9c3<>9
Naked Single: r9c3=4
Naked Single: r1c3=1
Naked Single: r1c9=7
Naked Single: r2c3=9
Naked Single: r1c5=2
Full House: r1c1=4
Full House: r2c2=2
Naked Single: r3c9=1
Full House: r3c5=7
Full House: r2c6=1
Full House: r5c6=2
Naked Single: r4c5=5
Full House: r5c5=1
Naked Single: r4c3=8
Naked Single: r4c2=9
Naked Single: r7c3=6
Naked Single: r5c2=7
Full House: r5c3=5
Full House: r8c3=7
Naked Single: r7c4=2
Full House: r8c4=6
Naked Single: r8c2=8
Full House: r7c2=1
Naked Single: r7c1=9
Full House: r9c1=2
Full House: r9c7=9
Naked Single: r8c8=3
Full House: r2c8=8
Full House: r8c9=2
Full House: r2c7=3
Naked Single: r7c9=8
Full House: r7c7=4
Naked Single: r5c7=8
Full House: r4c7=2
Full House: r4c9=3
Full House: r5c9=9
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_181
|
sudoku
|
sudoku_181
| null |
ritvik19
| 33
| 3
|
extremely_hard
|
...2.16846829475314.....972...1.94582..375196519864327...4..7....57928.......32..
|
. . . 2 . 1 6 8 4
6 8 2 9 4 7 5 3 1
4 . . . . . 9 7 2
. . . 1 . 9 4 5 8
2 . . 3 7 5 1 9 6
5 1 9 8 6 4 3 2 7
. . . 4 . . 7 . .
. . 5 7 9 2 8 . .
. . . . . 3 2 . .
|
397251684682947531451638972736129458248375196519864327923486715165792843874513269
|
397251684682947531451638972736129458248375196519864327923486715165792843874513269 #1 Unfair (402)
Full House: r4c5=2
Naked Single: r5c2=4
Full House: r5c3=8
Naked Single: r8c9=3
Naked Single: r8c1=1
Naked Single: r8c2=6
Full House: r8c8=4
Naked Single: r7c3=3
Naked Single: r1c3=7
Naked Single: r3c3=1
Naked Single: r4c3=6
Full House: r9c3=4
Hidden Single: r7c2=2
XY-Chain: 5 5- r1c5 -3- r1c1 -9- r7c1 -8- r7c6 -6- r9c4 -5- r9c9 -9- r9c2 -7- r4c2 -3- r3c2 -5 => r1c2,r3c45<>5
Naked Single: r3c4=6
Full House: r9c4=5
Naked Single: r3c6=8
Full House: r7c6=6
Naked Single: r9c9=9
Full House: r7c9=5
Naked Single: r3c5=3
Full House: r1c5=5
Full House: r3c2=5
Naked Single: r7c8=1
Full House: r9c8=6
Naked Single: r9c2=7
Naked Single: r7c5=8
Full House: r7c1=9
Full House: r9c1=8
Full House: r9c5=1
Naked Single: r4c2=3
Full House: r1c2=9
Full House: r1c1=3
Full House: r4c1=7
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_232
|
sudoku
|
sudoku_232
| null |
ritvik19
| 28
| 2
|
hard
|
51..8.93..3........8...4...826..9.1.753461892941825367168243759375698241.9.517...
|
5 1 . . 8 . 9 3 .
. 3 . . . . . . .
. 8 . . . 4 . . .
8 2 6 . . 9 . 1 .
7 5 3 4 6 1 8 9 2
9 4 1 8 2 5 3 6 7
1 6 8 2 4 3 7 5 9
3 7 5 6 9 8 2 4 1
. 9 . 5 1 7 . . .
|
514782936239156478687934125826379514753461892941825367168243759375698241492517683
|
514782936239156478687934125826379514753461892941825367168243759375698241492517683 #1 Hard (282)
Naked Single: r1c4=7
Naked Single: r9c8=8
Naked Single: r9c7=6
Full House: r9c9=3
Naked Single: r2c5=5
Naked Single: r4c4=3
Full House: r4c5=7
Full House: r3c5=3
Hidden Single: r2c9=8
Naked Pair: 2,4 in r19c3 => r23c3<>2, r2c3<>4
Bivalue Universal Grave + 1 => r2c1<>4, r2c1<>6
Naked Single: r2c1=2
Naked Single: r1c3=4
Naked Single: r2c6=6
Full House: r1c6=2
Full House: r1c9=6
Naked Single: r2c8=7
Full House: r3c8=2
Naked Single: r3c1=6
Full House: r9c1=4
Full House: r9c3=2
Naked Single: r3c9=5
Full House: r4c9=4
Full House: r4c7=5
Naked Single: r2c3=9
Full House: r3c3=7
Naked Single: r3c7=1
Full House: r2c7=4
Full House: r2c4=1
Full House: r3c4=9
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_85
|
sudoku
|
sudoku_85
| null |
ritvik19
| 32
| 2
|
hard
|
9762845313259.1...1...3.29.2317598644.9.123.......31298...2.91.513.9.6.2.921.....
|
9 7 6 2 8 4 5 3 1
3 2 5 9 . 1 . . .
1 . . . 3 . 2 9 .
2 3 1 7 5 9 8 6 4
4 . 9 . 1 2 3 . .
. . . . . 3 1 2 9
8 . . . 2 . 9 1 .
5 1 3 . 9 . 6 . 2
. 9 2 1 . . . . .
|
976284531325961748184537296231759864469812357758643129847326915513498672692175483
|
976284531325961748184537296231759864469812357758643129847326915513498672692175483 #1 Medium (238)
Hidden Single: r6c2=5
Hidden Single: r9c9=3
Hidden Single: r7c4=3
Hidden Single: r3c4=5
Locked Candidates Type 1 (Pointing): 8 in b1 => r3c9<>8
Hidden Single: r2c9=8
Hidden Single: r2c5=6
Full House: r3c6=7
Naked Single: r6c5=4
Full House: r9c5=7
Naked Single: r3c9=6
Naked Single: r8c6=8
Naked Single: r9c1=6
Full House: r6c1=7
Naked Single: r9c7=4
Full House: r2c7=7
Full House: r2c8=4
Naked Single: r8c4=4
Full House: r8c8=7
Naked Single: r7c2=4
Full House: r7c3=7
Naked Single: r9c6=5
Full House: r7c6=6
Full House: r7c9=5
Full House: r9c8=8
Full House: r5c8=5
Full House: r5c9=7
Naked Single: r6c3=8
Full House: r3c3=4
Full House: r3c2=8
Full House: r5c2=6
Full House: r6c4=6
Full House: r5c4=8
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_235
|
sudoku
|
sudoku_235
| null |
ritvik19
| 27
| 2
|
hard
|
795..63811869734..2435819766.....89.95.6.8.344.8...6..32486....861....43579134268
|
7 9 5 . . 6 3 8 1
1 8 6 9 7 3 4 . .
2 4 3 5 8 1 9 7 6
6 . . . . . 8 9 .
9 5 . 6 . 8 . 3 4
4 . 8 . . . 6 . .
3 2 4 8 6 . . . .
8 6 1 . . . . 4 3
5 7 9 1 3 4 2 6 8
|
795246381186973452243581976632417895957628134418359627324865719861792543579134268
|
795246381186973452243581976632417895957628134418359627324865719861792543579134268 #1 Medium (168)
Hidden Single: r7c9=9
Locked Candidates Type 1 (Pointing): 7 in b9 => r5c7<>7
Naked Single: r5c7=1
Naked Single: r5c5=2
Full House: r5c3=7
Full House: r4c3=2
Naked Single: r1c5=4
Full House: r1c4=2
Naked Single: r8c4=7
Naked Single: r6c4=3
Full House: r4c4=4
Naked Single: r7c6=5
Naked Single: r8c7=5
Full House: r7c7=7
Full House: r7c8=1
Naked Single: r6c2=1
Full House: r4c2=3
Naked Single: r4c6=7
Naked Single: r8c5=9
Full House: r8c6=2
Full House: r6c6=9
Naked Single: r4c9=5
Full House: r4c5=1
Full House: r6c5=5
Naked Single: r2c9=2
Full House: r2c8=5
Full House: r6c8=2
Full House: r6c9=7
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_70
|
sudoku
|
sudoku_70
| null |
ritvik19
| 43
| 2
|
hard
|
.2814569..6..89..1194..3.8.98........178.6....3.......871..2....4...8726652.741..
|
. 2 8 1 4 5 6 9 .
. 6 . . 8 9 . . 1
1 9 4 . . 3 . 8 .
9 8 . . . . . . .
. 1 7 8 . 6 . . .
. 3 . . . . . . .
8 7 1 . . 2 . . .
. 4 . . . 8 7 2 6
6 5 2 . 7 4 1 . .
|
728145693563289471194763582986357214417826359235491867871632945349518726652974138
|
728145693563289471194763582986357214417826359235491867871632945349518726652974138 #1 Medium (352)
Naked Single: r8c1=3
Full House: r8c3=9
Naked Single: r9c8=3
Naked Single: r1c1=7
Full House: r1c9=3
Naked Single: r8c4=5
Full House: r8c5=1
Naked Single: r9c4=9
Full House: r9c9=8
Naked Single: r2c1=5
Full House: r2c3=3
Hidden Single: r6c7=8
Locked Candidates Type 1 (Pointing): 7 in b2 => r46c4<>7
Naked Pair: 2,4 in r6c14 => r6c59<>2, r6c89<>4
Naked Pair: 4,5 in r57c8 => r24c8<>4, r46c8<>5
Naked Single: r2c8=7
Naked Single: r2c4=2
Full House: r2c7=4
Naked Single: r3c5=6
Full House: r3c4=7
Naked Single: r6c4=4
Naked Single: r7c5=3
Full House: r7c4=6
Full House: r4c4=3
Naked Single: r6c1=2
Full House: r5c1=4
Naked Single: r5c8=5
Naked Single: r4c7=2
Naked Single: r7c8=4
Naked Single: r3c7=5
Full House: r3c9=2
Naked Single: r4c5=5
Naked Single: r5c9=9
Naked Single: r7c7=9
Full House: r5c7=3
Full House: r5c5=2
Full House: r6c5=9
Full House: r7c9=5
Naked Single: r4c3=6
Full House: r6c3=5
Naked Single: r6c9=7
Full House: r4c9=4
Naked Single: r4c8=1
Full House: r4c6=7
Full House: r6c6=1
Full House: r6c8=6
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_215
|
sudoku
|
sudoku_215
| null |
ritvik19
| 38
| 3
|
extremely_hard
|
.6....54.......68.482756193274695318158243...693187.2..2.....5.54..18.......7....
|
. 6 . . . . 5 4 .
. . . . . . 6 8 .
4 8 2 7 5 6 1 9 3
2 7 4 6 9 5 3 1 8
1 5 8 2 4 3 . . .
6 9 3 1 8 7 . 2 .
. 2 . . . . . 5 .
5 4 . . 1 8 . . .
. . . . 7 . . . .
|
761839542935421687482756193274695318158243769693187425327964851549318276816572934
|
761839542935421687482756193274695318158243769693187425327964851549318276816572934 #1 Hard (512)
Naked Single: r6c7=4
Full House: r6c9=5
Hidden Single: r2c3=5
Hidden Single: r9c4=5
Hidden Single: r1c4=8
Hidden Single: r9c6=2
Hidden Single: r7c5=6
Hidden Single: r8c7=2
Hidden Single: r9c9=4
Hidden Single: r7c9=1
Locked Candidates Type 1 (Pointing): 7 in b3 => r58c9<>7
Locked Candidates Type 1 (Pointing): 3 in b8 => r2c4<>3
XY-Wing: 6/9/3 in r8c49,r9c8 => r8c8<>3
Hidden Single: r8c4=3
Hidden Single: r9c8=3
Naked Single: r9c2=1
Full House: r2c2=3
Naked Single: r2c5=2
Full House: r1c5=3
Naked Single: r2c9=7
Full House: r1c9=2
Naked Single: r2c1=9
Naked Single: r1c1=7
Full House: r1c3=1
Full House: r1c6=9
Naked Single: r2c4=4
Full House: r2c6=1
Full House: r7c6=4
Full House: r7c4=9
Naked Single: r9c1=8
Full House: r7c1=3
Naked Single: r7c3=7
Full House: r7c7=8
Naked Single: r9c7=9
Full House: r5c7=7
Full House: r9c3=6
Full House: r8c3=9
Naked Single: r8c9=6
Full House: r5c9=9
Full House: r5c8=6
Full House: r8c8=7
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_182
|
sudoku
|
sudoku_182
| null |
ritvik19
| 34
| 2
|
hard
|
.6....1573716852495429718637834695214165..398.......74.....8.1.......93..9.....86
|
. 6 . . . . 1 5 7
3 7 1 6 8 5 2 4 9
5 4 2 9 7 1 8 6 3
7 8 3 4 6 9 5 2 1
4 1 6 5 . . 3 9 8
. . . . . . . 7 4
. . . . . 8 . 1 .
. . . . . . 9 3 .
. 9 . . . . . 8 6
|
968234157371685249542971863783469521416527398259813674635798412827146935194352786
|
968234157371685249542971863783469521416527398259813674635798412827146935194352786 #1 Medium (236)
Full House: r6c7=6
Naked Single: r5c5=2
Full House: r5c6=7
Naked Single: r6c6=3
Naked Single: r6c5=1
Full House: r6c4=8
Hidden Single: r7c5=9
Hidden Single: r7c2=3
Hidden Single: r7c1=6
Hidden Single: r8c6=6
Naked Pair: 2,5 in r8c29 => r8c14<>2, r8c35<>5
Naked Single: r8c5=4
Naked Single: r1c5=3
Full House: r9c5=5
Naked Single: r9c6=2
Full House: r1c6=4
Full House: r1c4=2
Naked Single: r7c4=7
Naked Single: r9c1=1
Naked Single: r7c7=4
Full House: r9c7=7
Naked Single: r8c4=1
Full House: r9c4=3
Full House: r9c3=4
Naked Single: r8c1=8
Naked Single: r7c3=5
Full House: r7c9=2
Full House: r8c9=5
Naked Single: r1c1=9
Full House: r1c3=8
Full House: r6c1=2
Naked Single: r8c3=7
Full House: r6c3=9
Full House: r8c2=2
Full House: r6c2=5
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_149
|
sudoku
|
sudoku_149
| null |
ritvik19
| 31
| 2
|
hard
|
3..2.9..59..5.1..3.153..97..93.1..5..8162539.5...93...147962538639.5.241.5.134769
|
3 . . 2 . 9 . . 5
9 . . 5 . 1 . . 3
. 1 5 3 . . 9 7 .
. 9 3 . 1 . . 5 .
. 8 1 6 2 5 3 9 .
5 . . . 9 3 . . .
1 4 7 9 6 2 5 3 8
6 3 9 . 5 . 2 4 1
. 5 . 1 3 4 7 6 9
|
378249615926571483415386972293417856781625394564893127147962538639758241852134769
|
378249615926571483415386972293417856781625394564893127147962538639758241852134769 #1 Medium (254)
Hidden Single: r3c6=6
Locked Candidates Type 1 (Pointing): 7 in b1 => r6c2<>7
Locked Candidates Type 1 (Pointing): 6 in b3 => r46c7<>6
Hidden Single: r4c9=6
Hidden Single: r4c1=2
Naked Single: r6c2=6
Naked Single: r9c1=8
Full House: r9c3=2
Naked Single: r1c2=7
Full House: r2c2=2
Naked Single: r6c3=4
Full House: r5c1=7
Full House: r3c1=4
Full House: r5c9=4
Naked Single: r2c8=8
Naked Single: r3c5=8
Full House: r3c9=2
Full House: r6c9=7
Naked Single: r4c7=8
Naked Single: r1c8=1
Full House: r6c8=2
Full House: r6c7=1
Full House: r6c4=8
Naked Single: r2c3=6
Full House: r1c3=8
Naked Single: r1c5=4
Full House: r1c7=6
Full House: r2c7=4
Full House: r2c5=7
Naked Single: r4c6=7
Full House: r4c4=4
Full House: r8c4=7
Full House: r8c6=8
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_112
|
sudoku
|
sudoku_112
| null |
ritvik19
| 22
| 2
|
hard
|
...5284636831497254523768199254316.73768529418416973522..9....4...76.298...2.....
|
. . . 5 2 8 4 6 3
6 8 3 1 4 9 7 2 5
4 5 2 3 7 6 8 1 9
9 2 5 4 3 1 6 . 7
3 7 6 8 5 2 9 4 1
8 4 1 6 9 7 3 5 2
2 . . 9 . . . . 4
. . . 7 6 . 2 9 8
. . . 2 . . . . .
|
719528463683149725452376819925431687376852941841697352268913574134765298597284136
|
719528463683149725452376819925431687376852941841697352268913574134765298597284136 #1 Hard (258)
Full House: r4c8=8
Full House: r9c9=6
Naked Single: r8c3=4
Hidden Single: r7c2=6
Hidden Single: r9c6=4
Locked Candidates Type 2 (Claiming): 1 in r8 => r9c12<>1
Bivalue Universal Grave + 1 => r9c3<>8, r9c3<>9
Naked Single: r9c3=7
Naked Single: r1c3=9
Full House: r7c3=8
Naked Single: r9c1=5
Naked Single: r9c8=3
Full House: r7c8=7
Naked Single: r1c2=1
Full House: r1c1=7
Full House: r8c1=1
Naked Single: r7c5=1
Full House: r9c5=8
Naked Single: r9c7=1
Full House: r9c2=9
Full House: r8c2=3
Full House: r7c7=5
Full House: r8c6=5
Full House: r7c6=3
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_28
|
sudoku
|
sudoku_28
| null |
ritvik19
| 33
| 3
|
extremely_hard
|
941268375263.9....7851439..5..471..387.356.1.314829...13..846.26..51....4...3....
|
9 4 1 2 6 8 3 7 5
2 6 3 . 9 . . . .
7 8 5 1 4 3 9 . .
5 . . 4 7 1 . . 3
8 7 . 3 5 6 . 1 .
3 1 4 8 2 9 . . .
1 3 . . 8 4 6 . 2
6 . . 5 1 . . . .
4 . . . 3 . . . .
|
941268375263795148785143926596471283872356419314829567137984652629517834458632791
|
941268375263795148785143926596471283872356419314829567137984652629517834458632791 #1 Hard (612)
Naked Single: r3c9=6
Full House: r3c8=2
Naked Single: r2c4=7
Full House: r2c6=5
Naked Single: r6c9=7
Naked Single: r7c4=9
Full House: r9c4=6
Naked Single: r6c7=5
Full House: r6c8=6
Naked Single: r7c3=7
Full House: r7c8=5
Hidden Single: r4c3=6
Hidden Single: r9c2=5
Hidden Single: r8c8=3
Hidden Single: r2c8=4
Skyscraper: 9 in r8c2,r9c8 (connected by r4c28) => r8c9,r9c3<>9
W-Wing: 8/2 in r4c7,r9c3 connected by 2 in r5c37 => r9c7<>8
XY-Wing: 4/9/8 in r4c8,r58c9 => r9c8<>8
Naked Single: r9c8=9
Full House: r4c8=8
Naked Single: r4c7=2
Full House: r4c2=9
Full House: r5c3=2
Full House: r8c2=2
Naked Single: r5c7=4
Full House: r5c9=9
Naked Single: r9c3=8
Full House: r8c3=9
Naked Single: r8c6=7
Full House: r9c6=2
Naked Single: r9c9=1
Full House: r9c7=7
Naked Single: r8c7=8
Full House: r2c7=1
Full House: r2c9=8
Full House: r8c9=4
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_137
|
sudoku
|
sudoku_137
| null |
ritvik19
| 23
| 2
|
hard
|
24..1...6.5..6.2..6.9.25.4.124957368986231475573684912465398127....426.9.92176..4
|
2 4 . . 1 . . . 6
. 5 . . 6 . 2 . .
6 . 9 . 2 5 . 4 .
1 2 4 9 5 7 3 6 8
9 8 6 2 3 1 4 7 5
5 7 3 6 8 4 9 1 2
4 6 5 3 9 8 1 2 7
. . . . 4 2 6 . 9
. 9 2 1 7 6 . . 4
|
248713596751469283639825741124957368986231475573684912465398127817542639392176854
|
248713596751469283639825741124957368986231475573684912465398127817542639392176854 #1 Medium (162)
Full House: r8c4=5
Hidden Single: r2c4=4
Locked Candidates Type 1 (Pointing): 3 in b9 => r12c8<>3
Hidden Single: r1c6=3
Full House: r2c6=9
Naked Single: r2c8=8
Naked Single: r3c7=7
Naked Single: r8c8=3
Naked Single: r1c7=5
Full House: r9c7=8
Full House: r9c8=5
Full House: r1c8=9
Full House: r9c1=3
Naked Single: r3c4=8
Full House: r1c4=7
Full House: r1c3=8
Naked Single: r8c2=1
Full House: r3c2=3
Full House: r3c9=1
Full House: r2c9=3
Naked Single: r2c1=7
Full House: r2c3=1
Full House: r8c3=7
Full House: r8c1=8
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_37
|
sudoku
|
sudoku_37
| null |
ritvik19
| 38
| 3
|
extremely_hard
|
619.7.4.57239.5...845......932...5..576.3....18456927326..54....97..1....587..1.6
|
6 1 9 . 7 . 4 . 5
7 2 3 9 . 5 . . .
8 4 5 . . . . . .
9 3 2 . . . 5 . .
5 7 6 . 3 . . . .
1 8 4 5 6 9 2 7 3
2 6 . . 5 4 . . .
. 9 7 . . 1 . . .
. 5 8 7 . . 1 . 6
|
619873425723945681845126739932417568576238914184569273261354897497681352358792146
|
619873425723945681845126739932417568576238914184569273261354897497681352358792146 #1 Hard (1102)
Full House: r7c3=1
Hidden Single: r2c5=4
Hidden Single: r9c5=9
Hidden Single: r8c8=5
Hidden Single: r4c6=7
Hidden Single: r4c8=6
Hidden Single: r8c4=6
Hidden Single: r3c6=6
Hidden Single: r2c7=6
Locked Candidates Type 1 (Pointing): 1 in b2 => r3c89<>1
Locked Candidates Type 1 (Pointing): 8 in b2 => r1c8<>8
Hidden Pair: 2,4 in r8c9,r9c8 => r8c9<>8, r9c8<>3
X-Wing: 2 c59 r38 => r3c48<>2
XY-Wing: 1/8/2 in r34c5,r5c6 => r1c6<>2
XY-Wing: 2/3/8 in r59c6,r7c4 => r45c4<>8
Skyscraper: 8 in r4c9,r8c7 (connected by r48c5) => r5c7,r7c9<>8
Naked Single: r5c7=9
Locked Candidates Type 2 (Claiming): 8 in c7 => r7c8<>8
Naked Pair: 3,9 in r37c8 => r1c8<>3
Naked Single: r1c8=2
Naked Single: r9c8=4
Naked Single: r8c9=2
Naked Single: r9c1=3
Full House: r8c1=4
Full House: r9c6=2
Naked Single: r8c5=8
Full House: r7c4=3
Full House: r8c7=3
Naked Single: r5c6=8
Full House: r1c6=3
Full House: r1c4=8
Naked Single: r4c5=1
Full House: r3c5=2
Full House: r3c4=1
Naked Single: r7c8=9
Naked Single: r3c7=7
Full House: r7c7=8
Full House: r7c9=7
Naked Single: r5c8=1
Naked Single: r4c4=4
Full House: r4c9=8
Full House: r5c9=4
Full House: r5c4=2
Naked Single: r3c8=3
Full House: r3c9=9
Full House: r2c8=8
Full House: r2c9=1
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_178
|
sudoku
|
sudoku_178
| null |
ritvik19
| 31
| 3
|
extremely_hard
|
7..1..286.298..173.862..945...3..5196124597383957816249..6..3.2...5..8.1...9.84.7
|
7 . . 1 . . 2 8 6
. 2 9 8 . . 1 7 3
. 8 6 2 . . 9 4 5
. . . 3 . . 5 1 9
6 1 2 4 5 9 7 3 8
3 9 5 7 8 1 6 2 4
9 . . 6 . . 3 . 2
. . . 5 . . 8 . 1
. . . 9 . 8 4 . 7
|
734195286529846173186273945847362519612459738395781624978614352463527891251938467
|
734195286529846173186273945847362519612459738395781624978614352463527891251938467 #1 Hard (694)
Naked Single: r3c1=1
Naked Single: r7c8=5
Naked Single: r9c8=6
Full House: r8c8=9
Hidden Single: r1c5=9
Hidden Single: r7c3=8
Hidden Single: r4c1=8
Hidden Single: r8c2=6
Hidden Single: r7c5=1
Hidden Single: r9c3=1
Locked Candidates Type 1 (Pointing): 3 in b1 => r1c6<>3
Naked Pair: 4,7 in r47c2 => r1c2<>4
X-Wing: 4 c15 r28 => r28c6,r8c3<>4
W-Wing: 7/3 in r3c5,r8c3 connected by 3 in r9c25 => r8c5<>7
Hidden Single: r3c5=7
Full House: r3c6=3
Bivalue Universal Grave + 1 => r8c5<>3, r8c5<>4
Naked Single: r8c5=2
Naked Single: r4c5=6
Full House: r4c6=2
Naked Single: r8c1=4
Naked Single: r8c6=7
Full House: r8c3=3
Naked Single: r9c5=3
Full House: r2c5=4
Full House: r7c6=4
Full House: r7c2=7
Naked Single: r2c1=5
Full House: r2c6=6
Full House: r1c6=5
Full House: r9c1=2
Full House: r9c2=5
Naked Single: r1c3=4
Full House: r1c2=3
Full House: r4c2=4
Full House: r4c3=7
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_113
|
sudoku
|
sudoku_113
| null |
ritvik19
| 40
| 2
|
hard
|
..2..54.8..9.427.3.....7925.....9374...153286.38...591......1376.....859.935..642
|
. . 2 . . 5 4 . 8
. . 9 . 4 2 7 . 3
. . . . . 7 9 2 5
. . . . . 9 3 7 4
. . . 1 5 3 2 8 6
. 3 8 . . . 5 9 1
. . . . . . 1 3 7
6 . . . . . 8 5 9
. 9 3 5 . . 6 4 2
|
712395468859642713346817925561289374974153286238764591485926137627431859193578642
|
712395468859642713346817925561289374974153286238764591485926137627431859193578642 #1 Medium (370)
Hidden Single: r5c1=9
Locked Candidates Type 1 (Pointing): 1 in b2 => r89c5<>1
Locked Candidates Type 1 (Pointing): 6 in b4 => r4c45<>6
Locked Pair: 2,8 in r4c45 => r4c12,r6c45<>2
Hidden Single: r6c1=2
Locked Candidates Type 2 (Claiming): 8 in c6 => r7c45,r9c5<>8
Naked Single: r9c5=7
Naked Single: r6c5=6
Naked Single: r6c6=4
Full House: r6c4=7
Naked Single: r8c6=1
Naked Single: r9c6=8
Full House: r7c6=6
Full House: r9c1=1
Naked Single: r4c1=5
Naked Single: r2c1=8
Naked Single: r2c4=6
Naked Single: r7c1=4
Naked Single: r2c8=1
Full House: r1c8=6
Full House: r2c2=5
Naked Single: r3c1=3
Full House: r1c1=7
Naked Single: r7c3=5
Naked Single: r8c3=7
Naked Single: r3c4=8
Naked Single: r1c2=1
Naked Single: r5c3=4
Full House: r5c2=7
Naked Single: r8c2=2
Full House: r7c2=8
Naked Single: r3c5=1
Naked Single: r4c4=2
Full House: r4c5=8
Naked Single: r4c2=6
Full House: r3c2=4
Full House: r3c3=6
Full House: r4c3=1
Naked Single: r8c5=3
Full House: r8c4=4
Naked Single: r7c4=9
Full House: r1c4=3
Full House: r1c5=9
Full House: r7c5=2
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_196
|
sudoku
|
sudoku_196
| null |
ritvik19
| 26
| 2
|
hard
|
437859126.196725346..3149879714..352546123798283795461.98....1.......87........4.
|
4 3 7 8 5 9 1 2 6
. 1 9 6 7 2 5 3 4
6 . . 3 1 4 9 8 7
9 7 1 4 . . 3 5 2
5 4 6 1 2 3 7 9 8
2 8 3 7 9 5 4 6 1
. 9 8 . . . . 1 .
. . . . . . 8 7 .
. . . . . . . 4 .
|
437859126819672534652314987971468352546123798283795461398247615124536879765981243
|
437859126819672534652314987971468352546123798283795461398247615124536879765981243 #1 Medium (214)
Full House: r2c1=8
Hidden Single: r7c5=4
Hidden Single: r8c3=4
Naked Triple: 1,3,6 in r8c156 => r8c2<>6, r8c9<>3
Hidden Single: r9c2=6
Naked Single: r9c7=2
Full House: r7c7=6
Naked Single: r9c3=5
Full House: r3c3=2
Full House: r3c2=5
Full House: r8c2=2
Naked Single: r7c6=7
Naked Single: r9c4=9
Naked Single: r7c1=3
Naked Single: r8c4=5
Full House: r7c4=2
Full House: r7c9=5
Naked Single: r9c9=3
Full House: r8c9=9
Naked Single: r8c1=1
Full House: r9c1=7
Naked Single: r9c5=8
Full House: r9c6=1
Naked Single: r8c6=6
Full House: r4c6=8
Full House: r4c5=6
Full House: r8c5=3
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_68
|
sudoku
|
sudoku_68
| null |
ritvik19
| 36
| 3
|
extremely_hard
|
128794365694532817357.6.249.3.48.....1..2.....6...7....8.246..3.7..1....24..7519.
|
1 2 8 7 9 4 3 6 5
6 9 4 5 3 2 8 1 7
3 5 7 . 6 . 2 4 9
. 3 . 4 8 . . . .
. 1 . . 2 . . . .
. 6 . . . 7 . . .
. 8 . 2 4 6 . . 3
. 7 . . 1 . . . .
2 4 . . 7 5 1 9 .
|
128794365694532817357168249739481652815629734462357981981246573576913428243875196
|
128794365694532817357168249739481652815629734462357981981246573576913428243875196 #1 Hard (574)
Full House: r6c5=5
Hidden Single: r5c4=6
Hidden Single: r7c3=1
Hidden Single: r7c1=9
Naked Single: r8c1=5
Naked Single: r4c1=7
Naked Pair: 4,8 in r5c19 => r5c7<>4, r5c8<>8
XY-Wing: 6/8/4 in r59c9,r8c7 => r6c7,r8c9<>4
Naked Single: r6c7=9
Naked Single: r6c3=2
Hidden Single: r8c7=4
Hidden Single: r8c4=9
Hidden Single: r4c7=6
W-Wing: 8/3 in r6c8,r8c6 connected by 3 in r5c68 => r8c8<>8
Naked Single: r8c8=2
Naked Single: r4c8=5
Naked Single: r4c3=9
Naked Single: r5c7=7
Full House: r7c7=5
Full House: r7c8=7
Naked Single: r4c6=1
Full House: r4c9=2
Naked Single: r5c3=5
Naked Single: r5c8=3
Full House: r6c8=8
Naked Single: r3c6=8
Full House: r3c4=1
Naked Single: r6c4=3
Full House: r5c6=9
Full House: r8c6=3
Full House: r9c4=8
Naked Single: r5c9=4
Full House: r5c1=8
Full House: r6c1=4
Full House: r6c9=1
Naked Single: r8c3=6
Full House: r8c9=8
Full House: r9c9=6
Full House: r9c3=3
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_165
|
sudoku
|
sudoku_165
| null |
ritvik19
| 34
| 3
|
extremely_hard
|
435792861...53.74...2..1.3.......978......253...95.4169.6214.85851379624...685.9.
|
4 3 5 7 9 2 8 6 1
. . . 5 3 . 7 4 .
. . 2 . . 1 . 3 .
. . . . . . 9 7 8
. . . . . . 2 5 3
. . . 9 5 . 4 1 6
9 . 6 2 1 4 . 8 5
8 5 1 3 7 9 6 2 4
. . . 6 8 5 . 9 .
|
435792861619538742782461539564123978197846253328957416976214385851379624243685197
|
435792861619538742782461539564123978197846253328957416976214385851379624243685197 #1 Hard (356)
Naked Single: r3c7=5
Naked Single: r3c9=9
Full House: r2c9=2
Full House: r9c9=7
Naked Single: r7c2=7
Full House: r7c7=3
Full House: r9c7=1
Hidden Single: r4c5=2
Hidden Single: r4c1=5
Hidden Single: r3c1=7
Naked Pair: 3,4 in r49c3 => r5c3<>4, r6c3<>3
Skyscraper: 6 in r3c5,r4c6 (connected by r34c2) => r2c6,r5c5<>6
Naked Single: r2c6=8
Naked Single: r5c5=4
Full House: r3c5=6
Full House: r3c4=4
Full House: r3c2=8
Naked Single: r2c3=9
Naked Single: r4c4=1
Full House: r5c4=8
Naked Single: r6c2=2
Naked Single: r5c3=7
Naked Single: r6c1=3
Naked Single: r9c2=4
Naked Single: r5c6=6
Naked Single: r6c3=8
Full House: r6c6=7
Full House: r4c6=3
Naked Single: r4c3=4
Full House: r4c2=6
Full House: r9c3=3
Full House: r9c1=2
Naked Single: r5c1=1
Full House: r2c1=6
Full House: r2c2=1
Full House: r5c2=9
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_143
|
sudoku
|
sudoku_143
| null |
ritvik19
| 35
| 2
|
hard
|
..4..3.....2.46...63578..498236.47.54..8.....9.....4.8561327984379468.5.248...376
|
. . 4 . . 3 . . .
. . 2 . 4 6 . . .
6 3 5 7 8 . . 4 9
8 2 3 6 . 4 7 . 5
4 . . 8 . . . . .
9 . . . . . 4 . 8
5 6 1 3 2 7 9 8 4
3 7 9 4 6 8 . 5 .
2 4 8 . . . 3 7 6
|
194253867782946513635781249823614795457839621916572438561327984379468152248195376
|
194253867782946513635781249823614795457839621916572438561327984379468152248195376 #1 Medium (280)
Locked Candidates Type 1 (Pointing): 1 in b4 => r12c2<>1
Naked Pair: 1,2 in r38c7 => r125c7<>1, r15c7<>2
Naked Single: r5c7=6
Naked Single: r5c3=7
Full House: r6c3=6
Hidden Single: r1c8=6
Hidden Single: r6c5=7
Hidden Single: r6c8=3
Naked Single: r2c8=1
Naked Single: r2c1=7
Full House: r1c1=1
Naked Single: r3c7=2
Full House: r3c6=1
Naked Single: r4c8=9
Full House: r4c5=1
Full House: r5c8=2
Full House: r5c9=1
Naked Single: r2c9=3
Naked Single: r1c9=7
Full House: r8c9=2
Full House: r8c7=1
Naked Single: r5c2=5
Full House: r6c2=1
Naked Single: r5c6=9
Full House: r5c5=3
Naked Single: r9c6=5
Full House: r6c6=2
Full House: r6c4=5
Naked Single: r9c5=9
Full House: r1c5=5
Full House: r9c4=1
Naked Single: r2c4=9
Full House: r1c4=2
Naked Single: r1c7=8
Full House: r1c2=9
Full House: r2c2=8
Full House: r2c7=5
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_153
|
sudoku
|
sudoku_153
| null |
ritvik19
| 25
| 2
|
hard
|
4197286352..19.7843785..219...6..358...8.19268..9..147...4..871.8.317492147289563
|
4 1 9 7 2 8 6 3 5
2 . . 1 9 . 7 8 4
3 7 8 5 . . 2 1 9
. . . 6 . . 3 5 8
. . . 8 . 1 9 2 6
8 . . 9 . . 1 4 7
. . . 4 . . 8 7 1
. 8 . 3 1 7 4 9 2
1 4 7 2 8 9 5 6 3
|
419728635256193784378564219791642358534871926862935147923456871685317492147289563
|
419728635256193784378564219791642358534871926862935147923456871685317492147289563 #1 Medium (230)
Hidden Single: r2c6=3
Hidden Single: r4c3=1
Hidden Single: r5c3=4
Locked Candidates Type 1 (Pointing): 5 in b8 => r7c123<>5
Locked Candidates Type 1 (Pointing): 6 in b8 => r7c123<>6
Naked Single: r7c1=9
Naked Single: r4c1=7
Naked Single: r4c5=4
Naked Single: r5c1=5
Full House: r8c1=6
Full House: r8c3=5
Naked Single: r3c5=6
Full House: r3c6=4
Naked Single: r4c6=2
Full House: r4c2=9
Naked Single: r5c2=3
Full House: r5c5=7
Naked Single: r2c3=6
Full House: r2c2=5
Naked Single: r7c5=5
Full House: r6c5=3
Full House: r6c6=5
Full House: r7c6=6
Naked Single: r7c2=2
Full House: r6c2=6
Full House: r6c3=2
Full House: r7c3=3
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_51
|
sudoku
|
sudoku_51
| null |
ritvik19
| 21
| 2
|
hard
|
897543216...82957.52.671....52486.37...1526..46.937.5228539.761...215398319768425
|
8 9 7 5 4 3 2 1 6
. . . 8 2 9 5 7 .
5 2 . 6 7 1 . . .
. 5 2 4 8 6 . 3 7
. . . 1 5 2 6 . .
4 6 . 9 3 7 . 5 2
2 8 5 3 9 . 7 6 1
. . . 2 1 5 3 9 8
3 1 9 7 6 8 4 2 5
|
897543216146829573523671984952486137738152649461937852285394761674215398319768425
|
897543216146829573523671984952486137738152649461937852285394761674215398319768425 #1 Hard (244)
Full House: r7c6=4
Naked Pair: 3,4 in r2c2,r3c3 => r2c3<>3, r2c3<>4
Bivalue Universal Grave + 1 => r3c9<>3, r3c9<>9
Naked Single: r3c9=4
Naked Single: r2c9=3
Full House: r5c9=9
Naked Single: r3c3=3
Naked Single: r3c8=8
Full House: r3c7=9
Full House: r5c8=4
Naked Single: r2c2=4
Naked Single: r4c7=1
Full House: r4c1=9
Full House: r6c7=8
Full House: r6c3=1
Naked Single: r5c1=7
Naked Single: r5c3=8
Full House: r5c2=3
Full House: r8c2=7
Naked Single: r2c3=6
Full House: r2c1=1
Full House: r8c1=6
Full House: r8c3=4
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_19
|
sudoku
|
sudoku_19
| null |
ritvik19
| 34
| 2
|
hard
|
...5938.4.45168...8934271653...5948..8934.5..524.....945893...116...5.4.93...4.5.
|
. . . 5 9 3 8 . 4
. 4 5 1 6 8 . . .
8 9 3 4 2 7 1 6 5
3 . . . 5 9 4 8 .
. 8 9 3 4 . 5 . .
5 2 4 . . . . . 9
4 5 8 9 3 . . . 1
1 6 . . . 5 . 4 .
9 3 . . . 4 . 5 .
|
671593824245168397893427165316759482789342516524681739458936271162875943937214658
|
671593824245168397893427165316759482789342516524681739458936271162875943937214658 #1 Medium (286)
Hidden Single: r8c7=9
Hidden Single: r2c8=9
Hidden Single: r9c5=1
Hidden Single: r8c9=3
Hidden Single: r6c8=3
Hidden Single: r2c7=3
Hidden Single: r9c9=8
Hidden Single: r6c6=1
Hidden Single: r5c8=1
Locked Candidates Type 1 (Pointing): 2 in b6 => r2c9<>2
Naked Single: r2c9=7
Full House: r1c8=2
Full House: r2c1=2
Full House: r7c8=7
Hidden Single: r5c1=7
Full House: r1c1=6
Naked Single: r4c2=1
Full House: r1c2=7
Full House: r4c3=6
Full House: r1c3=1
Naked Single: r4c9=2
Full House: r4c4=7
Full House: r5c9=6
Full House: r5c6=2
Full House: r6c7=7
Full House: r7c6=6
Full House: r7c7=2
Full House: r9c7=6
Naked Single: r6c5=8
Full House: r6c4=6
Full House: r8c5=7
Naked Single: r9c4=2
Full House: r8c4=8
Full House: r8c3=2
Full House: r9c3=7
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_147
|
sudoku
|
sudoku_147
| null |
ritvik19
| 35
| 2
|
hard
|
43965..2.25698.34.781...659..2..69....8.924..694.7..129437..28.1.5.3.7.48.7.....3
|
4 3 9 6 5 . . 2 .
2 5 6 9 8 . 3 4 .
7 8 1 . . . 6 5 9
. . 2 . . 6 9 . .
. . 8 . 9 2 4 . .
6 9 4 . 7 . . 1 2
9 4 3 7 . . 2 8 .
1 . 5 . 3 . 7 . 4
8 . 7 . . . . . 3
|
439657128256981347781324659312846975578192436694573812943765281165238794827419563
|
439657128256981347781324659312846975578192436694573812943765281165238794827419563 #1 Medium (250)
Locked Pair: 6,9 in r89c8 => r5c8,r7c9<>6
Hidden Single: r5c9=6
Hidden Single: r7c5=6
Locked Candidates Type 1 (Pointing): 1 in b2 => r79c6<>1
Naked Single: r7c6=5
Full House: r7c9=1
Naked Single: r2c9=7
Full House: r2c6=1
Naked Single: r9c7=5
Naked Single: r1c9=8
Full House: r1c7=1
Full House: r1c6=7
Full House: r6c7=8
Full House: r4c9=5
Naked Single: r6c6=3
Full House: r6c4=5
Naked Single: r4c1=3
Full House: r5c1=5
Naked Single: r3c6=4
Naked Single: r5c4=1
Naked Single: r4c8=7
Full House: r5c8=3
Full House: r5c2=7
Full House: r4c2=1
Naked Single: r3c5=2
Full House: r3c4=3
Naked Single: r9c6=9
Full House: r8c6=8
Naked Single: r4c5=4
Full House: r4c4=8
Full House: r9c5=1
Naked Single: r9c8=6
Full House: r8c8=9
Naked Single: r8c4=2
Full House: r8c2=6
Full House: r9c2=2
Full House: r9c4=4
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_152
|
sudoku
|
sudoku_152
| null |
ritvik19
| 35
| 3
|
extremely_hard
|
......479...9..615169547832473629158625318794918.5.3267..............9...5.....67
|
. . . . . . 4 7 9
. . . 9 . . 6 1 5
1 6 9 5 4 7 8 3 2
4 7 3 6 2 9 1 5 8
6 2 5 3 1 8 7 9 4
9 1 8 . 5 . 3 2 6
7 . . . . . . . .
. . . . . . 9 . .
. 5 . . . . . 6 7
|
582136479347982615169547832473629158625318794918754326794261583236875941851493267
|
582136479347982615169547832473629158625318794918754326794261583236875941851493267 #1 Hard (520)
Naked Single: r1c3=2
Naked Single: r6c6=4
Full House: r6c4=7
Naked Single: r9c7=2
Full House: r7c7=5
Hidden Single: r2c3=7
Hidden Single: r1c1=5
Hidden Single: r8c6=5
Hidden Single: r9c5=9
Hidden Single: r7c2=9
Hidden Single: r8c5=7
Hidden Single: r2c6=2
Hidden Single: r8c1=2
Hidden Single: r2c2=4
Hidden Single: r8c3=6
Hidden Single: r7c4=2
Skyscraper: 3 in r2c5,r9c6 (connected by r29c1) => r1c6,r7c5<>3
Skyscraper: 8 in r2c5,r9c4 (connected by r29c1) => r1c4,r7c5<>8
Naked Single: r1c4=1
Naked Single: r7c5=6
Naked Single: r1c6=6
Hidden Single: r7c8=8
Full House: r8c8=4
Naked Single: r8c4=8
Full House: r9c4=4
Naked Single: r8c2=3
Full House: r1c2=8
Full House: r8c9=1
Full House: r1c5=3
Full House: r2c1=3
Full House: r9c1=8
Full House: r7c9=3
Full House: r2c5=8
Naked Single: r9c3=1
Full House: r7c3=4
Full House: r7c6=1
Full House: r9c6=3
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_156
|
sudoku
|
sudoku_156
| null |
ritvik19
| 30
| 2
|
hard
|
4.1..837...27.94817583146929751.....6249851371836.7.5...68.1....194......47.96.13
|
4 . 1 . . 8 3 7 .
. . 2 7 . 9 4 8 1
7 5 8 3 1 4 6 9 2
9 7 5 1 . . . . .
6 2 4 9 8 5 1 3 7
1 8 3 6 . 7 . 5 .
. . 6 8 . 1 . . .
. 1 9 4 . . . . .
. 4 7 . 9 6 . 1 3
|
491268375362759481758314692975143826624985137183627954236871549519432768847596213
|
491268375362759481758314692975143826624985137183627954236871549519432768847596213 #1 Medium (180)
Full House: r1c9=5
Naked Single: r2c1=3
Naked Single: r7c2=3
Naked Single: r1c4=2
Full House: r9c4=5
Naked Single: r2c2=6
Full House: r1c2=9
Full House: r1c5=6
Full House: r2c5=5
Naked Pair: 2,8 in r49c7 => r678c7<>2, r8c7<>8
Naked Single: r6c7=9
Naked Single: r6c9=4
Full House: r6c5=2
Naked Single: r7c9=9
Naked Single: r4c6=3
Full House: r4c5=4
Full House: r8c6=2
Naked Single: r7c5=7
Full House: r8c5=3
Naked Single: r8c8=6
Naked Single: r7c7=5
Naked Single: r4c8=2
Full House: r7c8=4
Full House: r7c1=2
Naked Single: r8c9=8
Full House: r4c9=6
Full House: r4c7=8
Naked Single: r8c7=7
Full House: r8c1=5
Full House: r9c1=8
Full House: r9c7=2
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_100
|
sudoku
|
sudoku_100
| null |
ritvik19
| 23
| 2
|
hard
|
13..4...9..9.13..6.....93.1987165..3215934687364...915.2.357194743291568591486732
|
1 3 . . 4 . . . 9
. . 9 . 1 3 . . 6
. . . . . 9 3 . 1
9 8 7 1 6 5 . . 3
2 1 5 9 3 4 6 8 7
3 6 4 . . . 9 1 5
. 2 . 3 5 7 1 9 4
7 4 3 2 9 1 5 6 8
5 9 1 4 8 6 7 3 2
|
136542879479813256852679341987165423215934687364728915628357194743291568591486732
|
136542879479813256852679341987165423215934687364728915628357194743291568591486732 #1 Medium (142)
Locked Candidates Type 2 (Claiming): 2 in r2 => r1c78,r3c8<>2
Naked Single: r1c7=8
Naked Single: r1c6=2
Full House: r6c6=8
Naked Single: r1c3=6
Naked Single: r3c5=7
Full House: r6c5=2
Full House: r6c4=7
Naked Single: r7c3=8
Full House: r3c3=2
Full House: r7c1=6
Naked Single: r1c4=5
Full House: r1c8=7
Naked Single: r3c2=5
Full House: r2c2=7
Naked Single: r2c4=8
Full House: r3c4=6
Naked Single: r3c8=4
Full House: r3c1=8
Full House: r2c1=4
Naked Single: r2c7=2
Full House: r2c8=5
Full House: r4c8=2
Full House: r4c7=4
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_35
|
sudoku
|
sudoku_35
| null |
ritvik19
| 27
| 2
|
hard
|
7..984.5....273196...516.8.259638714...425938438197562...36.879...74.32.3..85.641
|
7 . . 9 8 4 . 5 .
. . . 2 7 3 1 9 6
. . . 5 1 6 . 8 .
2 5 9 6 3 8 7 1 4
. . . 4 2 5 9 3 8
4 3 8 1 9 7 5 6 2
. . . 3 6 . 8 7 9
. . . 7 4 . 3 2 .
3 . . 8 5 . 6 4 1
|
761984253584273196923516487259638714617425938438197562145362879896741325372859641
|
761984253584273196923516487259638714617425938438197562145362879896741325372859641 #1 Medium (168)
Full House: r8c9=5
Naked Single: r1c9=3
Full House: r3c9=7
Naked Single: r1c7=2
Full House: r3c7=4
Naked Single: r3c1=9
Naked Single: r3c2=2
Full House: r3c3=3
Naked Pair: 1,6 in r18c3 => r57c3<>1, r5c3<>6
Naked Single: r5c3=7
Naked Single: r9c3=2
Naked Single: r9c6=9
Full House: r9c2=7
Naked Single: r8c6=1
Full House: r7c6=2
Naked Single: r8c3=6
Naked Single: r1c3=1
Full House: r1c2=6
Naked Single: r8c1=8
Full House: r8c2=9
Naked Single: r5c2=1
Full House: r5c1=6
Naked Single: r2c1=5
Full House: r7c1=1
Naked Single: r7c2=4
Full House: r2c2=8
Full House: r2c3=4
Full House: r7c3=5
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_77
|
sudoku
|
sudoku_77
| null |
ritvik19
| 32
| 3
|
extremely_hard
|
985...164361...572247156938.3....621..6.2.48.......75....6..817879..234661.8.4295
|
9 8 5 . . . 1 6 4
3 6 1 . . . 5 7 2
2 4 7 1 5 6 9 3 8
. 3 . . . . 6 2 1
. . 6 . 2 . 4 8 .
. . . . . . 7 5 .
. . . 6 . . 8 1 7
8 7 9 . . 2 3 4 6
6 1 . 8 . 4 2 9 5
|
985237164361489572247156938738945621596721483124368759452693817879512346613874295
|
985237164361489572247156938738945621596721483124368759452693817879512346613874295 #1 Hard (408)
Naked Single: r8c4=5
Full House: r8c5=1
Naked Single: r9c3=3
Full House: r9c5=7
Naked Single: r1c5=3
Naked Single: r1c6=7
Full House: r1c4=2
Naked Single: r7c5=9
Full House: r7c6=3
Hidden Single: r6c5=6
Locked Candidates Type 2 (Claiming): 9 in r4 => r5c46,r6c46<>9
Naked Pair: 4,8 in r4c35 => r4c14<>4, r4c6<>8
XY-Wing: 1/4/8 in r4c3,r6c16 => r4c5,r6c3<>8
Naked Single: r4c5=4
Full House: r2c5=8
Naked Single: r4c3=8
Naked Single: r6c4=3
Naked Single: r2c6=9
Full House: r2c4=4
Naked Single: r5c4=7
Full House: r4c4=9
Naked Single: r6c9=9
Full House: r5c9=3
Naked Single: r4c6=5
Full House: r4c1=7
Naked Single: r6c2=2
Naked Single: r5c6=1
Full House: r6c6=8
Naked Single: r6c3=4
Full House: r6c1=1
Full House: r7c3=2
Naked Single: r7c2=5
Full House: r5c2=9
Full House: r5c1=5
Full House: r7c1=4
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_126
|
sudoku
|
sudoku_126
| null |
ritvik19
| 32
| 3
|
extremely_hard
|
8372961451293....6546.87..3.8.9..4.1.9..1...2261.....9372.....4658439217914...3.8
|
8 3 7 2 9 6 1 4 5
1 2 9 3 . . . . 6
5 4 6 . 8 7 . . 3
. 8 . 9 . . 4 . 1
. 9 . . 1 . . . 2
2 6 1 . . . . . 9
3 7 2 . . . . . 4
6 5 8 4 3 9 2 1 7
9 1 4 . . . 3 . 8
|
837296145129345786546187923785923461493618572261574839372851694658439217914762358
|
837296145129345786546187923785923461493618572261574839372851694658439217914762358 #1 Hard (288)
Naked Single: r3c4=1
Naked Single: r4c1=7
Full House: r5c1=4
Naked Single: r3c7=9
Full House: r3c8=2
Hidden Single: r7c6=1
Hidden Single: r7c8=9
Hidden Single: r7c4=8
Skyscraper: 6 in r4c8,r7c7 (connected by r47c5) => r5c7,r9c8<>6
Naked Single: r9c8=5
Full House: r7c7=6
Full House: r7c5=5
Naked Single: r9c6=2
Naked Single: r2c5=4
Full House: r2c6=5
Naked Single: r6c5=7
Naked Single: r4c6=3
Naked Single: r6c4=5
Naked Single: r9c5=6
Full House: r4c5=2
Full House: r9c4=7
Full House: r5c4=6
Naked Single: r4c3=5
Full House: r4c8=6
Full House: r5c3=3
Naked Single: r5c6=8
Full House: r6c6=4
Naked Single: r6c7=8
Full House: r6c8=3
Naked Single: r5c8=7
Full House: r2c8=8
Full House: r2c7=7
Full House: r5c7=5
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_238
|
sudoku
|
sudoku_238
| null |
ritvik19
| 33
| 3
|
extremely_hard
|
1642.5...8259371467394615823576....8486.1.3..912..86.424.......59.....2167......9
|
1 6 4 2 . 5 . . .
8 2 5 9 3 7 1 4 6
7 3 9 4 6 1 5 8 2
3 5 7 6 . . . . 8
4 8 6 . 1 . 3 . .
9 1 2 . . 8 6 . 4
2 4 . . . . . . .
5 9 . . . . . 2 1
6 7 . . . . . . 9
|
164285937825937146739461582357694218486712395912358674241579863593846721678123459
|
164285937825937146739461582357694218486712395912358674241579863593846721678123459 #1 Hard (412)
Full House: r1c5=8
Hidden Single: r4c8=1
Hidden Single: r6c4=3
Hidden Single: r5c6=2
Hidden Single: r4c7=2
Hidden Single: r8c6=6
Hidden Single: r7c8=6
Hidden Single: r9c5=2
Hidden Single: r5c8=9
Hidden Single: r1c7=9
Hidden Single: r8c3=3
Locked Candidates Type 2 (Claiming): 7 in c7 => r7c9<>7
Skyscraper: 5 in r5c9,r9c8 (connected by r59c4) => r6c8,r7c9<>5
Naked Single: r6c8=7
Full House: r5c9=5
Full House: r6c5=5
Full House: r5c4=7
Naked Single: r7c9=3
Full House: r1c9=7
Full House: r1c8=3
Full House: r9c8=5
Naked Single: r8c4=8
Naked Single: r7c6=9
Naked Single: r9c4=1
Full House: r7c4=5
Naked Single: r4c6=4
Full House: r4c5=9
Full House: r9c6=3
Naked Single: r7c5=7
Full House: r8c5=4
Full House: r8c7=7
Naked Single: r9c3=8
Full House: r7c3=1
Full House: r7c7=8
Full House: r9c7=4
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_231
|
sudoku
|
sudoku_231
| null |
ritvik19
| 22
| 2
|
hard
|
....7658363..5.7.....3..6..342195876986724351...863492829637145461582937573...268
|
. . . . 7 6 5 8 3
6 3 . . 5 . 7 . .
. . . 3 . . 6 . .
3 4 2 1 9 5 8 7 6
9 8 6 7 2 4 3 5 1
. . . 8 6 3 4 9 2
8 2 9 6 3 7 1 4 5
4 6 1 5 8 2 9 3 7
5 7 3 . . . 2 6 8
|
194276583638951724257348619342195876986724351715863492829637145461582937573419268
|
194276583638951724257348619342195876986724351715863492829637145461582937573419268 #1 Hard (248)
Naked Single: r1c3=4
Naked Single: r2c3=8
Hidden Single: r3c6=8
Locked Candidates Type 2 (Claiming): 1 in r1 => r3c12<>1
Bivalue Universal Grave + 1 => r2c4<>2, r2c4<>4
Naked Single: r2c4=9
Naked Single: r1c4=2
Full House: r9c4=4
Naked Single: r2c6=1
Full House: r3c5=4
Full House: r9c5=1
Full House: r9c6=9
Naked Single: r2c9=4
Full House: r2c8=2
Full House: r3c9=9
Full House: r3c8=1
Naked Single: r1c1=1
Full House: r1c2=9
Naked Single: r3c2=5
Full House: r6c2=1
Naked Single: r6c1=7
Full House: r3c1=2
Full House: r3c3=7
Full House: r6c3=5
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_21
|
sudoku
|
sudoku_21
| null |
ritvik19
| 35
| 3
|
extremely_hard
|
948631527762......135.2.96.32..95.4..9.......65...87.9513......4893126752765..3..
|
9 4 8 6 3 1 5 2 7
7 6 2 . . . . . .
1 3 5 . 2 . 9 6 .
3 2 . . 9 5 . 4 .
. 9 . . . . . . .
6 5 . . . 8 7 . 9
5 1 3 . . . . . .
4 8 9 3 1 2 6 7 5
2 7 6 5 . . 3 . .
|
948631527762859413135427968327195846894763152651248739513976284489312675276584391
|
948631527762859413135427968327195846894763152651248739513976284489312675276584391 #1 Hard (310)
Full House: r5c1=8
Naked Single: r6c5=4
Naked Single: r6c3=1
Naked Single: r9c5=8
Naked Single: r4c3=7
Full House: r5c3=4
Naked Single: r6c4=2
Full House: r6c8=3
Naked Single: r2c5=5
Naked Single: r4c4=1
Naked Single: r4c7=8
Full House: r4c9=6
Naked Single: r5c4=7
Naked Single: r5c5=6
Full House: r5c6=3
Full House: r7c5=7
Hidden Single: r5c8=5
Hidden Single: r2c9=3
Hidden Single: r3c6=7
Hidden Single: r7c6=6
Skyscraper: 4 in r3c4,r9c6 (connected by r39c9) => r2c6,r7c4<>4
Naked Single: r2c6=9
Full House: r9c6=4
Full House: r7c4=9
Naked Single: r9c9=1
Full House: r9c8=9
Naked Single: r7c8=8
Full House: r2c8=1
Naked Single: r5c9=2
Full House: r5c7=1
Naked Single: r2c7=4
Full House: r2c4=8
Full House: r3c9=8
Full House: r7c9=4
Full House: r7c7=2
Full House: r3c4=4
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_157
|
sudoku
|
sudoku_157
| null |
ritvik19
| 37
| 3
|
extremely_hard
|
.3.....7..92...3.6574.......8......9.1.98....25.4.3.6.928..7134365149287741832695
|
. 3 . . . . . 7 .
. 9 2 . . . 3 . 6
5 7 4 . . . . . .
. 8 . . . . . . 9
. 1 . 9 8 . . . .
2 5 . 4 . 3 . 6 .
9 2 8 . . 7 1 3 4
3 6 5 1 4 9 2 8 7
7 4 1 8 3 2 6 9 5
|
136295478892714356574368912683521749417986523259473861928657134365149287741832695
|
136295478892714356574368912683521749417986523259473861928657134365149287741832695 #1 Hard (688)
Naked Single: r1c3=6
Hidden Single: r6c3=9
Hidden Single: r5c9=3
Naked Single: r5c3=7
Full House: r4c3=3
Hidden Single: r3c4=3
Hidden Single: r5c8=2
Naked Single: r3c8=1
Hidden Single: r6c9=1
Naked Single: r6c5=7
Full House: r6c7=8
Naked Single: r3c7=9
Hidden Single: r2c4=7
Hidden Single: r4c7=7
Hidden Single: r1c5=9
2-String Kite: 5 in r2c8,r5c6 (connected by r4c8,r5c7) => r2c6<>5
W-Wing: 5/6 in r5c6,r7c5 connected by 6 in r3c56 => r4c5<>5
XY-Wing: 2/5/6 in r17c4,r3c5 => r7c5<>6
Naked Single: r7c5=5
Full House: r7c4=6
Naked Single: r2c5=1
Naked Single: r2c1=8
Full House: r1c1=1
Naked Single: r2c6=4
Full House: r2c8=5
Full House: r4c8=4
Full House: r5c7=5
Full House: r1c7=4
Naked Single: r4c1=6
Full House: r5c1=4
Full House: r5c6=6
Naked Single: r4c5=2
Full House: r3c5=6
Naked Single: r3c6=8
Full House: r3c9=2
Full House: r1c9=8
Naked Single: r4c4=5
Full House: r1c4=2
Full House: r1c6=5
Full House: r4c6=1
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_169
|
sudoku
|
sudoku_169
| null |
ritvik19
| 39
| 3
|
extremely_hard
|
........747....1.8....71.94.4.3..76138....429....94385.....3872.2.4..913839127546
|
. . . . . . . . 7
4 7 . . . . 1 . 8
. . . . 7 1 . 9 4
. 4 . 3 . . 7 6 1
3 8 . . . . 4 2 9
. . . . 9 4 3 8 5
. . . . . 3 8 7 2
. 2 . 4 . . 9 1 3
8 3 9 1 2 7 5 4 6
|
198245637472639158653871294945382761387516429261794385514963872726458913839127546
|
198245637472639158653871294945382761387516429261794385514963872726458913839127546 #1 Hard (516)
Hidden Single: r1c5=4
Hidden Single: r7c3=4
Hidden Single: r3c3=3
Hidden Single: r4c1=9
Hidden Single: r1c2=9
Hidden Single: r7c4=9
Hidden Single: r5c5=1
Hidden Single: r2c5=3
Naked Single: r2c8=5
Full House: r1c8=3
Hidden Single: r3c4=8
Hidden Single: r1c3=8
Hidden Single: r2c6=9
Hidden Single: r1c1=1
Hidden Single: r6c3=1
Naked Single: r6c2=6
Naked Single: r3c2=5
Full House: r7c2=1
Locked Candidates Type 1 (Pointing): 5 in b4 => r8c3<>5
Locked Candidates Type 2 (Claiming): 6 in c5 => r8c6<>6
Skyscraper: 2 in r2c4,r4c6 (connected by r24c3) => r1c6,r6c4<>2
Naked Single: r6c4=7
Full House: r6c1=2
Naked Single: r3c1=6
Full House: r2c3=2
Full House: r3c7=2
Full House: r2c4=6
Full House: r1c7=6
Naked Single: r4c3=5
Full House: r5c3=7
Full House: r8c3=6
Naked Single: r7c1=5
Full House: r7c5=6
Full House: r8c1=7
Naked Single: r1c6=5
Full House: r1c4=2
Full House: r5c4=5
Full House: r5c6=6
Naked Single: r4c5=8
Full House: r4c6=2
Full House: r8c6=8
Full House: r8c5=5
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_191
|
sudoku
|
sudoku_191
| null |
ritvik19
| 31
| 3
|
extremely_hard
|
19....2...72...4....4...1........3729374526182...73549...368725723195864658724931
|
1 9 . . . . 2 . .
. 7 2 . . . 4 . .
. . 4 . . . 1 . .
. . . . . . 3 7 2
9 3 7 4 5 2 6 1 8
2 . . . 7 3 5 4 9
. . . 3 6 8 7 2 5
7 2 3 1 9 5 8 6 4
6 5 8 7 2 4 9 3 1
|
196547283372981456584236197845619372937452618261873549419368725723195864658724931
|
196547283372981456584236197845619372937452618261873549419368725723195864658724931 #1 Hard (314)
Naked Single: r7c1=4
Naked Single: r7c2=1
Full House: r7c3=9
Hidden Single: r3c4=2
Hidden Single: r1c5=4
Hidden Single: r4c2=4
Hidden Single: r6c3=1
Hidden Single: r1c9=3
Naked Single: r2c9=6
Full House: r3c9=7
Hidden Single: r1c6=7
Skyscraper: 6 in r1c3,r6c2 (connected by r16c4) => r3c2,r4c3<>6
Naked Single: r3c2=8
Full House: r6c2=6
Full House: r6c4=8
Naked Single: r4c3=5
Full House: r1c3=6
Full House: r4c1=8
Naked Single: r3c5=3
Naked Single: r4c5=1
Full House: r2c5=8
Naked Single: r1c4=5
Full House: r1c8=8
Naked Single: r3c1=5
Full House: r2c1=3
Naked Single: r2c4=9
Full House: r4c4=6
Full House: r4c6=9
Naked Single: r3c8=9
Full House: r2c8=5
Full House: r2c6=1
Full House: r3c6=6
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_115
|
sudoku
|
sudoku_115
| null |
ritvik19
| 24
| 2
|
hard
|
592...18431......778......38734..519641935872259..8346127359468435...921968..4735
|
5 9 2 . . . 1 8 4
3 1 . . . . . . 7
7 8 . . . . . . 3
8 7 3 4 . . 5 1 9
6 4 1 9 3 5 8 7 2
2 5 9 . . 8 3 4 6
1 2 7 3 5 9 4 6 8
4 3 5 . . . 9 2 1
9 6 8 . . 4 7 3 5
|
592763184314892657786541293873426519641935872259178346127359468435687921968214735
|
592763184314892657786541293873426519641935872259178346127359468435687921968214735 #1 Medium (176)
Hidden Single: r1c6=3
Hidden Single: r3c6=1
Hidden Single: r8c6=7
Locked Candidates Type 2 (Claiming): 6 in r1 => r2c456,r3c45<>6
Naked Single: r2c6=2
Full House: r4c6=6
Full House: r4c5=2
Naked Single: r2c7=6
Full House: r3c7=2
Naked Single: r3c4=5
Naked Single: r9c5=1
Full House: r9c4=2
Naked Single: r2c3=4
Full House: r3c3=6
Naked Single: r2c4=8
Naked Single: r3c8=9
Full House: r2c8=5
Full House: r2c5=9
Full House: r3c5=4
Naked Single: r6c5=7
Full House: r6c4=1
Naked Single: r8c4=6
Full House: r1c4=7
Full House: r1c5=6
Full House: r8c5=8
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_42
|
sudoku
|
sudoku_42
| null |
ritvik19
| 36
| 2
|
hard
|
1574862398...15764......158.......25.48.5..175....7.83....6.591685...372.215..846
|
1 5 7 4 8 6 2 3 9
8 . . . 1 5 7 6 4
. . . . . . 1 5 8
. . . . . . . 2 5
. 4 8 . 5 . . 1 7
5 . . . . 7 . 8 3
. . . . 6 . 5 9 1
6 8 5 . . . 3 7 2
. 2 1 5 . . 8 4 6
|
157486239832915764496732158763841925248359617519627483374268591685194372921573846
|
157486239832915764496732158763841925248359617519627483374268591685194372921573846 #1 Medium (304)
Hidden Single: r9c1=9
Naked Single: r9c6=3
Full House: r9c5=7
Hidden Single: r3c4=7
Locked Candidates Type 1 (Pointing): 4 in b7 => r7c6<>4
Naked Pair: 2,9 in r35c6 => r48c6<>9, r7c6<>2
Naked Single: r7c6=8
Naked Single: r7c4=2
Hidden Single: r4c4=8
Hidden Single: r2c3=2
Hidden Single: r5c1=2
Naked Single: r5c6=9
Naked Single: r3c6=2
Naked Single: r5c7=6
Full House: r5c4=3
Naked Single: r2c4=9
Full House: r2c2=3
Full House: r3c5=3
Naked Single: r4c5=4
Naked Single: r8c4=1
Full House: r6c4=6
Naked Single: r3c1=4
Naked Single: r7c2=7
Naked Single: r4c6=1
Full House: r6c5=2
Full House: r8c5=9
Full House: r8c6=4
Naked Single: r4c7=9
Full House: r6c7=4
Naked Single: r6c3=9
Full House: r6c2=1
Naked Single: r7c1=3
Full House: r4c1=7
Full House: r7c3=4
Naked Single: r4c2=6
Full House: r3c2=9
Full House: r3c3=6
Full House: r4c3=3
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_160
|
sudoku
|
sudoku_160
| null |
ritvik19
| 37
| 2
|
hard
|
...6143.74..2.81.6.61.754288945.72.1..542.87....8.1..4...74..1.....8.74.74.15..82
|
. . . 6 1 4 3 . 7
4 . . 2 . 8 1 . 6
. 6 1 . 7 5 4 2 8
8 9 4 5 . 7 2 . 1
. . 5 4 2 . 8 7 .
. . . 8 . 1 . . 4
. . . 7 4 . . 1 .
. . . . 8 . 7 4 .
7 4 . 1 5 . . 8 2
|
582614397479238156361975428894567231615423879237891564958742613126389745743156982
|
582614397479238156361975428894567231615423879237891564958742613126389745743156982 #1 Medium (278)
Locked Candidates Type 1 (Pointing): 5 in b3 => r6c8<>5
Hidden Single: r6c7=5
Locked Candidates Type 1 (Pointing): 9 in b3 => r6c8<>9
Hidden Single: r6c5=9
Naked Single: r2c5=3
Full House: r3c4=9
Full House: r4c5=6
Full House: r3c1=3
Full House: r8c4=3
Full House: r4c8=3
Full House: r5c6=3
Naked Single: r5c9=9
Full House: r6c8=6
Naked Single: r5c2=1
Full House: r5c1=6
Naked Single: r8c9=5
Full House: r7c9=3
Naked Single: r6c1=2
Naked Single: r8c2=2
Hidden Single: r9c3=3
Naked Single: r6c3=7
Full House: r6c2=3
Naked Single: r2c3=9
Naked Single: r1c1=5
Naked Single: r2c8=5
Full House: r1c8=9
Full House: r2c2=7
Naked Single: r8c3=6
Naked Single: r1c2=8
Full House: r1c3=2
Full House: r7c3=8
Full House: r7c2=5
Naked Single: r7c1=9
Full House: r8c1=1
Full House: r8c6=9
Naked Single: r7c7=6
Full House: r7c6=2
Full House: r9c6=6
Full House: r9c7=9
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_222
|
sudoku
|
sudoku_222
| null |
ritvik19
| 37
| 3
|
extremely_hard
|
.1.8432..7386124596427598...2...75...7...63.886...491.15...8....87..1...29..751..
|
. 1 . 8 4 3 2 . .
7 3 8 6 1 2 4 5 9
6 4 2 7 5 9 8 . .
. 2 . . . 7 5 . .
. 7 . . . 6 3 . 8
8 6 . . . 4 9 1 .
1 5 . . . 8 . . .
. 8 7 . . 1 . . .
2 9 . . 7 5 1 . .
|
519843276738612459642759831923187564471596328865234917154368792387921645296475183
|
519843276738612459642759831923187564471596328865234917154368792387921645296475183 #1 Hard (308)
Naked Single: r3c8=3
Full House: r3c9=1
Naked Single: r8c7=6
Full House: r7c7=7
Hidden Single: r4c5=8
Hidden Single: r6c9=7
Naked Single: r1c9=6
Full House: r1c8=7
Naked Single: r4c9=4
Naked Single: r4c8=6
Full House: r5c8=2
Naked Single: r9c9=3
Naked Single: r5c5=9
Naked Single: r7c9=2
Full House: r8c9=5
Naked Single: r9c4=4
Naked Single: r9c3=6
Full House: r9c8=8
Hidden Single: r7c5=6
Skyscraper: 3 in r4c1,r6c5 (connected by r8c15) => r4c4,r6c3<>3
Naked Single: r4c4=1
Naked Single: r6c3=5
Naked Single: r5c4=5
Naked Single: r1c3=9
Full House: r1c1=5
Naked Single: r5c1=4
Full House: r5c3=1
Naked Single: r4c3=3
Full House: r4c1=9
Full House: r8c1=3
Full House: r7c3=4
Naked Single: r8c5=2
Full House: r6c5=3
Full House: r6c4=2
Naked Single: r7c8=9
Full House: r7c4=3
Full House: r8c4=9
Full House: r8c8=4
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_171
|
sudoku
|
sudoku_171
| null |
ritvik19
| 31
| 3
|
extremely_hard
|
.1.4862...8.3.7....3.2......658437...4.725.6..7361945.3589721467261345..194568...
|
. 1 . 4 8 6 2 . .
. 8 . 3 . 7 . . .
. 3 . 2 . . . . .
. 6 5 8 4 3 7 . .
. 4 . 7 2 5 . 6 .
. 7 3 6 1 9 4 5 .
3 5 8 9 7 2 1 4 6
7 2 6 1 3 4 5 . .
1 9 4 5 6 8 . . .
|
519486237482397615637251894965843721841725963273619458358972146726134589194568372
|
519486237482397615637251894965843721841725963273619458358972146726134589194568372 #1 Hard (454)
Full House: r3c6=1
Naked Single: r9c7=3
Hidden Single: r2c3=2
Hidden Single: r5c3=1
Hidden Single: r5c9=3
Hidden Single: r1c8=3
Locked Candidates Type 1 (Pointing): 9 in b4 => r123c1<>9
Naked Single: r1c1=5
Hidden Pair: 4,5 in r23c9 => r2c9<>1, r23c9<>9, r3c9<>7, r3c9<>8
Hidden Single: r2c8=1
Hidden Single: r4c9=1
W-Wing: 9/8 in r5c7,r8c8 connected by 8 in r3c78 => r4c8<>9
Naked Single: r4c8=2
Full House: r4c1=9
Naked Single: r6c9=8
Full House: r5c7=9
Full House: r5c1=8
Full House: r6c1=2
Naked Single: r9c8=7
Full House: r9c9=2
Naked Single: r8c9=9
Full House: r8c8=8
Full House: r3c8=9
Naked Single: r2c7=6
Full House: r3c7=8
Naked Single: r1c9=7
Full House: r1c3=9
Full House: r3c3=7
Naked Single: r3c5=5
Full House: r2c5=9
Naked Single: r2c1=4
Full House: r2c9=5
Full House: r3c9=4
Full House: r3c1=6
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_116
|
sudoku
|
sudoku_116
| null |
ritvik19
| 32
| 3
|
extremely_hard
|
743896215..5274369..6135487..2683974...749.....9512638....21.9.....68...3...57..6
|
7 4 3 8 9 6 2 1 5
. . 5 2 7 4 3 6 9
. . 6 1 3 5 4 8 7
. . 2 6 8 3 9 7 4
. . . 7 4 9 . . .
. . 9 5 1 2 6 3 8
. . . . 2 1 . 9 .
. . . . 6 8 . . .
3 . . . 5 7 . . 6
|
743896215185274369296135487512683974638749152479512638867421593954368721321957846
|
743896215185274369296135487512683974638749152479512638867421593954368721321957846 #1 Hard (468)
Naked Single: r6c1=4
Full House: r6c2=7
Naked Single: r7c9=3
Naked Single: r7c4=4
Naked Single: r9c4=9
Full House: r8c4=3
Hidden Single: r5c2=3
Hidden Single: r5c1=6
Hidden Single: r7c2=6
Hidden Single: r5c3=8
Naked Single: r7c3=7
Hidden Single: r8c7=7
Locked Candidates Type 2 (Claiming): 1 in c3 => r8c12,r9c2<>1
Naked Triple: 1,5,8 in r247c1 => r8c1<>5
XY-Wing: 1/2/4 in r8c39,r9c8 => r8c8,r9c3<>4
Naked Single: r9c3=1
Full House: r8c3=4
Naked Single: r9c7=8
Naked Single: r7c7=5
Full House: r5c7=1
Full House: r7c1=8
Naked Single: r9c2=2
Full House: r9c8=4
Naked Single: r8c8=2
Full House: r5c8=5
Full House: r5c9=2
Full House: r8c9=1
Naked Single: r2c1=1
Full House: r2c2=8
Naked Single: r3c2=9
Full House: r3c1=2
Naked Single: r8c1=9
Full House: r4c1=5
Full House: r8c2=5
Full House: r4c2=1
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_127
|
sudoku
|
sudoku_127
| null |
ritvik19
| 35
| 3
|
extremely_hard
|
685279143...154628214638795.5..4....4...61...769523814..649...1.........19..8...2
|
6 8 5 2 7 9 1 4 3
. . . 1 5 4 6 2 8
2 1 4 6 3 8 7 9 5
. 5 . . 4 . . . .
4 . . . 6 1 . . .
7 6 9 5 2 3 8 1 4
. . 6 4 9 . . . 1
. . . . . . . . .
1 9 . . 8 . . . 2
|
685279143937154628214638795351847269428961537769523814576492381842315976193786452
|
685279143937154628214638795351847269428961537769523814576492381842315976193786452 #1 Unfair (1140)
Full House: r8c5=1
Naked Single: r4c6=7
Hidden Single: r4c3=1
Hidden Single: r2c1=9
Hidden Single: r9c7=4
Hidden Single: r8c2=4
Hidden Single: r4c7=2
Naked Pair: 3,7 in r9c34 => r9c8<>3, r9c8<>7
Naked Pair: 3,7 in r29c3 => r58c3<>3, r8c3<>7
XY-Wing: 5/6/3 in r49c8,r7c7 => r5c7,r78c8<>3
XY-Chain: 3 3- r5c2 -2- r5c3 -8- r5c4 -9- r5c7 -5- r7c7 -3 => r7c2<>3
XY-Chain: 5 5- r5c7 -9- r5c4 -8- r5c3 -2- r5c2 -3- r2c2 -7- r7c2 -2- r7c6 -5- r9c6 -6- r9c8 -5 => r5c8,r78c7<>5
Naked Single: r7c7=3
Naked Single: r8c7=9
Full House: r5c7=5
W-Wing: 3/7 in r2c2,r5c8 connected by 7 in r7c28 => r5c2<>3
Naked Single: r5c2=2
Naked Single: r5c3=8
Full House: r4c1=3
Naked Single: r7c2=7
Full House: r2c2=3
Full House: r2c3=7
Naked Single: r5c4=9
Full House: r4c4=8
Naked Single: r8c3=2
Full House: r9c3=3
Naked Single: r4c8=6
Full House: r4c9=9
Naked Single: r5c9=7
Full House: r5c8=3
Full House: r8c9=6
Naked Single: r9c4=7
Full House: r8c4=3
Naked Single: r9c8=5
Full House: r9c6=6
Naked Single: r8c6=5
Full House: r7c6=2
Naked Single: r7c8=8
Full House: r7c1=5
Full House: r8c1=8
Full House: r8c8=7
|
Complete the sudoku board based on the rules and visual elements.
| 9
| 9
|
Each row, column, and 3×3 subgrid must contain all digits from 1 to 9 exactly once. Digits cannot be repeated within any row, column, or 3×3 subgrid.
|
sudoku_151
|
sudoku
|
sudoku_151
| null |
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