task_name string | initial_board string | solution string | title string | rules string | visual_elements string | rows int64 | cols int64 | initial_observation string | description string | task_type string | data_source string | difficulty string | hint string | hodoku_difficulty string | puzzle_id string |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
normal_sudoku_1347 | 1..........67..31..5.32...4........6785......4.2...185..157.....7948.....2.1...9. | 134896572296745318857321964913258746785614239462937185641579823379482651528163497 | puzzles1_unbiased | 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.
| None | 9 | 9 | 1 . . . . . . . .
. . 6 7 . . 3 1 .
. 5 . 3 2 . . . 4
. . . . . . . . 6
7 8 5 . . . . . .
4 . 2 . . . 1 8 5
. . 1 5 7 . . . .
. 7 9 4 8 . . . .
. 2 . 1 . . . 9 . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 134896572296745318857321964913258746785614239462937185641579823379482651528163497 #1 Easy (212)
Naked Single: r4c3=3
Naked Single: r4c1=9
Naked Single: r3c1=8
Naked Single: r4c2=1
Full House: r6c2=6
Naked Single: r2c1=2
Naked Single: r3c3=7
Naked Single: r6c4=9
Naked Single: r1c3=4
Full Ho... | easy | Basic 9x9 Sudoku 1347 |
normal_sudoku_169 | 8.......66.....32.1.45...8.49.......7.349...5561278.3.91785264334..1.2..2..643.9. | 872934516659187324134526987498365172723491865561278439917852643346719258285643791 | normal_sudoku_169 | 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.
| None | 9 | 9 | 8 . . . . . . . 6
6 . . . . . 3 2 .
1 . 4 5 . . . 8 .
4 9 . . . . . . .
7 . 3 4 9 . . . 5
5 6 1 2 7 8 . 3 .
9 1 7 8 5 2 6 4 3
3 4 . . 1 . 2 . .
2 . . 6 4 3 . 9 . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 872934516659187324134526987498365172723491865561278439917852643346719258285643791 #1 Easy (220)
Naked Single: r2c5=8
Hidden Single: r4c6=5
Hidden Single: r5c2=2
Full House: r4c3=8
Naked Single: r9c3=5
Naked Single: r2c3=9
Naked Single: r8c3=6
Full House: r9c2=8
Full House: r1c3=2
Naked Sin... | easy | null |
normal_sudoku_5069 | 4...68.....3.4...8.8.2.54..6...5.3..3257.49....86.3.5.......135.7.5.1.4953.4...27 | 459368271213947568786215493647159382325784916198623754964872135872531649531496827 | normal_sudoku_5069 | 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.
| None | 9 | 9 | 4 . . . 6 8 . . .
. . 3 . 4 . . . 8
. 8 . 2 . 5 4 . .
6 . . . 5 . 3 . .
3 2 5 7 . 4 9 . .
. . 8 6 . 3 . 5 .
. . . . . . 1 3 5
. 7 . 5 . 1 . 4 9
5 3 . 4 . . . 2 7 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 459368271213947568786215493647159382325784916198623754964872135872531649531496827 #1 Medium (320)
Hidden Single: r8c5=3
Hidden Single: r1c4=3
Hidden Single: r9c3=1
Hidden Single: r3c9=3
Hidden Single: r5c9=6
Locked Candidates Type 1 (Pointing): 9 in b7 => r7c456<>9
Naked Single: r7c4=8
Naked Sin... | medium | null |
normal_sudoku_2103 | 342.1...7596..3..481764.9.362.8..7.1..142.3..45.1.7.9...43..8.5.3....47...5..4.39 | 342918567596273184817645923623859741971426358458137692764392815239581476185764239 | normal_sudoku_2103 | 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.
| None | 9 | 9 | 3 4 2 . 1 . . . 7
5 9 6 . . 3 . . 4
8 1 7 6 4 . 9 . 3
6 2 . 8 . . 7 . 1
. . 1 4 2 . 3 . .
4 5 . 1 . 7 . 9 .
. . 4 3 . . 8 . 5
. 3 . . . . 4 7 .
. . 5 . . 4 . 3 9 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 342918567596273184817645923623859741971426358458137692764392815239581476185764239 #1 Easy (176)
Hidden Single: r4c8=4
Hidden Single: r1c7=5
Naked Single: r1c4=9
Naked Single: r3c8=2
Full House: r3c6=5
Naked Single: r1c6=8
Full House: r1c8=6
Naked Single: r2c7=1
Full House: r2c8=8
Naked Sin... | easy | null |
normal_sudoku_620 | .2.6...3.........1....37..48..2.651.2.634.8....7..5.............9...8.7.3.51..... | 524619738763824951918537624849276513256341897137985246482793165691458372375162489 | puzzles1_unbiased | 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.
| None | 9 | 9 | . 2 . 6 . . . 3 .
. . . . . . . . 1
. . . . 3 7 . . 4
8 . . 2 . 6 5 1 .
2 . 6 3 4 . 8 . .
. . 7 . . 5 . . .
. . . . . . . . .
. 9 . . . 8 . 7 .
3 . 5 1 . . . . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 524619738763824951918537624849276513256341897137985246482793165691458372375162489 #1 Easy (294)
Naked Single: r5c8=9
Naked Single: r5c6=1
Naked Single: r5c9=7
Full House: r5c2=5
Naked Single: r4c9=3
Naked Single: r4c2=4
Naked Single: r4c3=9
Full House: r4c5=7
Naked Single: r6c1=1
Full Hous... | easy | Basic 9x9 Sudoku 620 |
normal_sudoku_5282 | .2...3..4..56...13...45...7.6.9.4..2...7.69..9...1.7.62.439...83.6.48..9.8..6.4.. | 621873594475629813893451627167984352542736981938215746254397168316548279789162435 | normal_sudoku_5282 | 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.
| None | 9 | 9 | . 2 . . . 3 . . 4
. . 5 6 . . . 1 3
. . . 4 5 . . . 7
. 6 . 9 . 4 . . 2
. . . 7 . 6 9 . .
9 . . . 1 . 7 . 6
2 . 4 3 9 . . . 8
3 . 6 . 4 8 . . 9
. 8 . . 6 . 4 . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 621873594475629813893451627167984352542736981938215746254397168316548279789162435 #1 Easy (218)
Hidden Single: r9c3=9
Hidden Single: r9c8=3
Hidden Single: r4c7=3
Naked Single: r4c5=8
Naked Single: r1c5=7
Naked Single: r4c8=5
Naked Single: r2c5=2
Full House: r5c5=3
Naked Single: r5c9=1
Full... | easy | null |
normal_sudoku_851 | ..2.3.64.4...9.....8..46..5...9..428.4...596.69..8257.3..12....174.59..6.2....1.. | 952831647436597812781246395517963428248715963693482571369128754174359286825674139 | normal_sudoku_851 | 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.
| None | 9 | 9 | . . 2 . 3 . 6 4 .
4 . . . 9 . . . .
. 8 . . 4 6 . . 5
. . . 9 . . 4 2 8
. 4 . . . 5 9 6 .
6 9 . . 8 2 5 7 .
3 . . 1 2 . . . .
1 7 4 . 5 9 . . 6
. 2 . . . . 1 . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 952831647436597812781246395517963428248715963693482571369128754174359286825674139 #1 Easy (244)
Hidden Single: r4c5=6
Naked Single: r9c5=7
Full House: r5c5=1
Naked Single: r5c9=3
Full House: r6c9=1
Naked Single: r5c4=7
Naked Single: r6c3=3
Full House: r6c4=4
Full House: r4c6=3
Naked Single... | easy | null |
normal_sudoku_2185 | ..73...2.5.4.6..1.1....5..82.9.34....48.27.9.7..9..2.48.56..14.4.....6....24...7. | 987341526534862719126795438259134867648527391713986254895673142471259683362418975 | normal_sudoku_2185 | 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.
| None | 9 | 9 | . . 7 3 . . . 2 .
5 . 4 . 6 . . 1 .
1 . . . . 5 . . 8
2 . 9 . 3 4 . . .
. 4 8 . 2 7 . 9 .
7 . . 9 . . 2 . 4
8 . 5 6 . . 1 4 .
4 . . . . . 6 . .
. . 2 4 . . . 7 . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 987341526534862719126795438259134867648527391713986254895673142471259683362418975 #1 Easy (252)
Hidden Single: r6c6=6
Hidden Single: r3c3=6
Naked Single: r1c1=9
Naked Single: r3c8=3
Naked Single: r1c2=8
Naked Single: r3c2=2
Full House: r2c2=3
Naked Single: r1c6=1
Naked Single: r3c4=7
Naked... | easy | null |
normal_sudoku_6896 | .68..91.2.......7..17....4.8..39.726..3267...6.2..83....69.2517..9..6.837...5..6. | 568479132924183675317625948845391726193267854672548391486932517259716483731854269 | normal_sudoku_6896 | 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.
| None | 9 | 9 | . 6 8 . . 9 1 . 2
. . . . . . . 7 .
. 1 7 . . . . 4 .
8 . . 3 9 . 7 2 6
. . 3 2 6 7 . . .
6 . 2 . . 8 3 . .
. . 6 9 . 2 5 1 7
. . 9 . . 6 . 8 3
7 . . . 5 . . 6 . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 568479132924183675317625948845391726193267854672548391486932517259716483731854269 #1 Medium (320)
Hidden Single: r6c2=7
Hidden Single: r1c8=3
Locked Candidates Type 1 (Pointing): 5 in b3 => r56c9<>5
Locked Candidates Type 1 (Pointing): 9 in b4 => r5c789<>9
Naked Single: r5c8=5
Full House: r6c8=9
Hi... | medium | null |
normal_sudoku_2808 | .6128..3...9536.18.3.41.5.6..2.4187.....7.1621..8.23.4..319..........943....2..81 | 561287439429536718738419526392641875854973162176852394683194257215768943947325681 | normal_sudoku_2808 | 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.
| None | 9 | 9 | . 6 1 2 8 . . 3 .
. . 9 5 3 6 . 1 8
. 3 . 4 1 . 5 . 6
. . 2 . 4 1 8 7 .
. . . . 7 . 1 6 2
1 . . 8 . 2 3 . 4
. . 3 1 9 . . . .
. . . . . . 9 4 3
. . . . 2 . . 8 1 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 561287439429536718738419526392641875854973162176852394683194257215768943947325681 #1 Easy (228)
Hidden Single: r1c1=5
Hidden Single: r8c2=1
Hidden Single: r1c7=4
Hidden Single: r8c1=2
Hidden Single: r3c8=2
Naked Single: r2c7=7
Full House: r1c9=9
Full House: r1c6=7
Full House: r3c6=9
Naked ... | easy | null |
normal_sudoku_285 | 465..938.7283549..913..84.51879.654.2.9.758.6......7..3..5..19.....8.6....1..32.. | 465719382728354961913268475187926543239475816654831729376542198592187634841693257 | normal_sudoku_285 | 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.
| None | 9 | 9 | 4 6 5 . . 9 3 8 .
7 2 8 3 5 4 9 . .
9 1 3 . . 8 4 . 5
1 8 7 9 . 6 5 4 .
2 . 9 . 7 5 8 . 6
. . . . . . 7 . .
3 . . 5 . . 1 9 .
. . . . 8 . 6 . .
. . 1 . . 3 2 . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 465719382728354961913268475187926543239475816654831729376542198592187634841693257 #1 Easy (226)
Naked Single: r2c9=1
Full House: r2c8=6
Naked Single: r8c1=5
Naked Single: r6c1=6
Full House: r9c1=8
Naked Single: r6c3=4
Naked Single: r5c2=3
Full House: r6c2=5
Naked Single: r8c3=2
Full House:... | easy | null |
normal_sudoku_5957 | 764..3.128.54.26.99...6...41.8...946..967.3816.3..172535...72.82...5...7.......53 | 764593812835412679912768534178235946529674381643981725356147298281359467497826153 | normal_sudoku_5957 | 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.
| None | 9 | 9 | 7 6 4 . . 3 . 1 2
8 . 5 4 . 2 6 . 9
9 . . . 6 . . . 4
1 . 8 . . . 9 4 6
. . 9 6 7 . 3 8 1
6 . 3 . . 1 7 2 5
3 5 . . . 7 2 . 8
2 . . . 5 . . . 7
. . . . . . . 5 3 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 764593812835412679912768534178235946529674381643981725356147298281359467497826153 #1 Easy (156)
Naked Single: r2c5=1
Naked Single: r4c6=5
Naked Single: r6c2=4
Naked Single: r9c1=4
Full House: r5c1=5
Naked Single: r2c2=3
Full House: r2c8=7
Naked Single: r3c6=8
Naked Single: r5c6=4
Full Hous... | easy | null |
normal_sudoku_2263 | .3264.8.....92...7...38.5..9.4....6.7.............4.2...1...9..4....2......7.3... | 532647891148925637697381542914278365726539418385164729271456983453892176869713254 | puzzles2_17_clue | 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.
| None | 9 | 9 | . 3 2 6 4 . 8 . .
. . . 9 2 . . . 7
. . . 3 8 . 5 . .
9 . 4 . . . . 6 .
7 . . . . . . . .
. . . . . 4 . 2 .
. . 1 . . . 9 . .
4 . . . . 2 . . .
. . . 7 . 3 . . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 532647891148925637697381542914278365726539418385164729271456983453892176869713254 #1 Easy (272)
Hidden Single: r1c6=7
Naked Single: r3c6=1
Full House: r2c6=5
Naked Single: r3c1=6
Naked Single: r4c6=8
Naked Single: r2c3=8
Naked Single: r7c6=6
Full House: r5c6=9
Naked Single: r2c1=1
Naked Si... | easy | Basic 9x9 Sudoku 2263 |
normal_sudoku_587 | 386417..5745.291.3..965...8..1398..7..21..8.4..7.6...1..4.....9.98.324.6..3..6..2 | 386417295745829163219653748451398627962175834837264951624581379598732416173946582 | normal_sudoku_587 | 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.
| None | 9 | 9 | 3 8 6 4 1 7 . . 5
7 4 5 . 2 9 1 . 3
. . 9 6 5 . . . 8
. . 1 3 9 8 . . 7
. . 2 1 . . 8 . 4
. . 7 . 6 . . . 1
. . 4 . . . . . 9
. 9 8 . 3 2 4 . 6
. . 3 . . 6 . . 2 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 386417295745829163219653748451398627962175834837264951624581379598732416173946582 #1 Easy (210)
Naked Single: r2c4=8
Full House: r2c8=6
Full House: r3c6=3
Naked Single: r5c5=7
Naked Single: r5c6=5
Naked Single: r7c5=8
Full House: r9c5=4
Naked Single: r6c4=2
Full House: r6c6=4
Full House: r... | easy | null |
normal_sudoku_2000 | .3.6...85.5..2..172.8.4....9..27...1.7....3..5.68..9..7....4.69...7...4.....8.... | 437691285659328417218547693943276851871459326526813974782134569395762148164985732 | puzzles1_unbiased | 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.
| None | 9 | 9 | . 3 . 6 . . . 8 5
. 5 . . 2 . . 1 7
2 . 8 . 4 . . . .
9 . . 2 7 . . . 1
. 7 . . . . 3 . .
5 . 6 8 . . 9 . .
7 . . . . 4 . 6 9
. . . 7 . . . 4 .
. . . . 8 . . . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 437691285659328417218547693943276851871459326526813974782134569395762148164985732 #1 Easy (212)
Naked Single: r3c7=6
Naked Single: r4c8=5
Naked Single: r2c7=4
Naked Single: r3c9=3
Naked Single: r5c8=2
Naked Single: r1c7=2
Full House: r3c8=9
Naked Single: r2c1=6
Naked Single: r2c3=9
Naked S... | easy | Basic 9x9 Sudoku 2000 |
normal_sudoku_937 | ..2.1.......7.45.....82....5..4762....3.9.84......2.........46.1.6....594.8.59..7 | 852913674319764582647825931581476293723591846964382715295137468176248359438659127 | puzzles1_unbiased | 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.
| None | 9 | 9 | . . 2 . 1 . . . .
. . . 7 . 4 5 . .
. . . 8 2 . . . .
5 . . 4 7 6 2 . .
. . 3 . 9 . 8 4 .
. . . . . 2 . . .
. . . . . . 4 6 .
1 . 6 . . . . 5 9
4 . 8 . 5 9 . . 7 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 852913674319764582647825931581476293723591846964382715295137468176248359438659127 #1 Easy (282)
Naked Single: r8c7=3
Naked Single: r8c4=2
Naked Single: r9c7=1
Naked Single: r8c2=7
Naked Single: r9c8=2
Full House: r7c9=8
Naked Single: r8c6=8
Full House: r8c5=4
Naked Single: r9c2=3
Full Hous... | easy | Basic 9x9 Sudoku 937 |
normal_sudoku_5951 | 9.1..6..3.7.5..1...8.3....61.2...4....71....5.59..43...1.7.32.4....8..3..2.4..5.. | 941826753673549128285317946132958467467132895859674312516793284794285631328461579 | 01_file1 | 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.
| None | 9 | 9 | 9 . 1 . . 6 . . 3
. 7 . 5 . . 1 . .
. 8 . 3 . . . . 6
1 . 2 . . . 4 . .
. . 7 1 . . . . 5
. 5 9 . . 4 3 . .
. 1 . 7 . 3 2 . 4
. . . . 8 . . 3 .
. 2 . 4 . . 5 . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 941826753673549128285317946132958467467132895859674312516793284794285631328461579 #1 Easy (274)
Naked Single: r1c2=4
Naked Single: r3c3=5
Naked Single: r3c1=2
Hidden Single: r8c2=9
Hidden Single: r1c8=5
Hidden Single: r8c3=4
Hidden Single: r5c1=4
Hidden Single: r4c4=9
Hidden Single: r6c1=8
... | easy | Basic 9x9 Sudoku 5951 |
normal_sudoku_1295 | .4..5.6....39...7..2.........734..1.8.41...9....5.8.....9.3.1..47..89.3.3..4..9.. | 948753621513926478726814359697342815854167293132598764289635147471289536365471982 | puzzles4_forum_hardest_1905 | 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.
| None | 9 | 9 | . 4 . . 5 . 6 . .
. . 3 9 . . . 7 .
. 2 . . . . . . .
. . 7 3 4 . . 1 .
8 . 4 1 . . . 9 .
. . . 5 . 8 . . .
. . 9 . 3 . 1 . .
4 7 . . 8 9 . 3 .
3 . . 4 . . 9 . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 948753621513926478726814359697342815854167293132598764289635147471289536365471982 #1 Medium (452)
Hidden Single: r6c5=9
Hidden Single: r8c3=1
Naked Single: r1c3=8
Naked Single: r1c8=2
Naked Single: r1c4=7
Hidden Single: r4c2=9
Hidden Single: r3c4=8
Hidden Single: r3c1=7
Hidden Single: r3c9=9
... | medium | Basic 9x9 Sudoku 1295 |
normal_sudoku_1905 | .4.56..3285.....61..6.18.57.3..7.28498...3675....8619341.....28.6.3....95......16 | 147569832852734961396218457631975284984123675725486193413697528268351749579842316 | normal_sudoku_1905 | 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.
| None | 9 | 9 | . 4 . 5 6 . . 3 2
8 5 . . . . . 6 1
. . 6 . 1 8 . 5 7
. 3 . . 7 . 2 8 4
9 8 . . . 3 6 7 5
. . . . 8 6 1 9 3
4 1 . . . . . 2 8
. 6 . 3 . . . . 9
5 . . . . . . 1 6 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 147569832852734961396218457631975284984123675725486193413697528268351749579842316 #1 Easy (304)
Full House: r8c8=4
Hidden Single: r1c7=8
Hidden Single: r4c1=6
Hidden Single: r4c6=5
Naked Single: r4c3=1
Full House: r4c4=9
Hidden Single: r7c4=6
Hidden Single: r3c1=3
Hidden Single: r2c5=3
Hid... | easy | null |
normal_sudoku_917 | ...6....8.1.....9.3....5.16.47.......2...17..5..24..3..7.3.916....1....9....2...7 | 459613278716482593382795416147938625923561784568247931874359162235176849691824357 | puzzles1_unbiased | 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.
| None | 9 | 9 | . . . 6 . . . . 8
. 1 . . . . . 9 .
3 . . . . 5 . 1 6
. 4 7 . . . . . .
. 2 . . . 1 7 . .
5 . . 2 4 . . 3 .
. 7 . 3 . 9 1 6 .
. . . 1 . . . . 9
. . . . 2 . . . 7 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 459613278716482593382795416147938625923561784568247931874359162235176849691824357 #1 Easy (340)
Naked Single: r6c9=1
Hidden Single: r1c5=1
Hidden Single: r6c6=7
Hidden Single: r5c3=3
Hidden Single: r1c8=7
Hidden Single: r2c9=3
Hidden Single: r4c1=1
Hidden Single: r9c3=1
Hidden Single: r8c5=7
... | easy | Basic 9x9 Sudoku 917 |
normal_sudoku_134 | ..214...9..65.......49..18.745296831..3714...2.1385.4..18........9...7..437629518 | 852143679196578423374962185745296831983714256261385947618457392529831764437629518 | normal_sudoku_134 | 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.
| None | 9 | 9 | . . 2 1 4 . . . 9
. . 6 5 . . . . .
. . 4 9 . . 1 8 .
7 4 5 2 9 6 8 3 1
. . 3 7 1 4 . . .
2 . 1 3 8 5 . 4 .
. 1 8 . . . . . .
. . 9 . . . 7 . .
4 3 7 6 2 9 5 1 8 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 852143679196578423374962185745296831983714256261385947618457392529831764437629518 #1 Easy (196)
Naked Single: r7c4=4
Full House: r8c4=8
Hidden Single: r3c5=6
Hidden Single: r2c1=1
Hidden Single: r6c9=7
Hidden Single: r8c2=2
Naked Single: r8c8=6
Naked Single: r8c1=5
Full House: r7c1=6
Naked... | easy | null |
normal_sudoku_1009 | ..4962531.23...986.6..834....7..42...4.2.81..2...5.8....831.6.9..68..35.3....6718 | 784962531523741986169583472897134265645278193231659847478315629916827354352496718 | normal_sudoku_1009 | 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.
| None | 9 | 9 | . . 4 9 6 2 5 3 1
. 2 3 . . . 9 8 6
. 6 . . 8 3 4 . .
. . 7 . . 4 2 . .
. 4 . 2 . 8 1 . .
2 . . . 5 . 8 . .
. . 8 3 1 . 6 . 9
. . 6 8 . . 3 5 .
3 . . . . 6 7 1 8 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 784962531523741986169583472897134265645278193231659847478315629916827354352496718 #1 Easy (224)
Hidden Single: r7c8=2
Full House: r8c9=4
Naked Single: r3c8=7
Full House: r3c9=2
Hidden Single: r9c3=2
Hidden Single: r8c5=2
Hidden Single: r7c1=4
Hidden Single: r6c8=4
Hidden Single: r6c4=6
Nak... | easy | null |
normal_sudoku_1347 | 1.4......2.67..31.85732..64913.....6785......462937185..157.....7948.....281...9. | 134896572296745318857321964913258746785614239462937185641579823379482651528163497 | normal_sudoku_1347 | 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.
| None | 9 | 9 | 1 . 4 . . . . . .
2 . 6 7 . . 3 1 .
8 5 7 3 2 . . 6 4
9 1 3 . . . . . 6
7 8 5 . . . . . .
4 6 2 9 3 7 1 8 5
. . 1 5 7 . . . .
. 7 9 4 8 . . . .
. 2 8 1 . . . 9 . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 134896572296745318857321964913258746785614239462937185641579823379482651528163497 #1 Easy (160)
Naked Single: r2c2=9
Full House: r1c2=3
Full House: r7c2=4
Naked Single: r3c7=9
Full House: r3c6=1
Naked Single: r9c5=6
Naked Single: r2c9=8
Naked Single: r9c6=3
Naked Single: r8c6=2
Full House:... | easy | null |
normal_sudoku_1507 | 9746135.23.2.5....65.4....32........745.6.3.11.8.........7.92...2..4.7.64.7..6.1. | 974613582382957164651482973293174658745268391168395427816739245529841736437526819 | normal_sudoku_1507 | 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.
| None | 9 | 9 | 9 7 4 6 1 3 5 . 2
3 . 2 . 5 . . . .
6 5 . 4 . . . . 3
2 . . . . . . . .
7 4 5 . 6 . 3 . 1
1 . 8 . . . . . .
. . . 7 . 9 2 . .
. 2 . . 4 . 7 . 6
4 . 7 . . 6 . 1 . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 974613582382957164651482973293174658745268391168395427816739245529841736437526819 #1 Easy (184)
Full House: r1c8=8
Naked Single: r3c3=1
Full House: r2c2=8
Naked Single: r3c7=9
Naked Single: r2c4=9
Naked Single: r2c6=7
Naked Single: r3c8=7
Naked Single: r9c7=8
Naked Single: r2c9=4
Naked Sin... | easy | null |
normal_sudoku_5600 | .8...2.14...54.2........6.3.9....14.6421.5.89..8429..6.2...8.61..32.4......7..4.. | 586372914931546278274891653395687142642135789718429536427958361153264897869713425 | normal_sudoku_5600 | 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.
| None | 9 | 9 | . 8 . . . 2 . 1 4
. . . 5 4 . 2 . .
. . . . . . 6 . 3
. 9 . . . . 1 4 .
6 4 2 1 . 5 . 8 9
. . 8 4 2 9 . . 6
. 2 . . . 8 . 6 1
. . 3 2 . 4 . . .
. . . 7 . . 4 . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 586372914931546278274891653395687142642135789718429536427958361153264897869713425 #1 Easy (212)
Hidden Single: r2c9=8
Hidden Single: r4c9=2
Naked Single: r9c9=5
Full House: r8c9=7
Naked Single: r8c8=9
Naked Single: r2c8=7
Naked Single: r7c7=3
Naked Single: r8c7=8
Full House: r9c8=2
Naked S... | easy | null |
normal_sudoku_2376 | 3728965149..45...71..372.8....64...56...1.....1.7.5.......8...2.61...4..238964751 | 372896514986451237145372689823649175657218943419735826594187362761523498238964751 | normal_sudoku_2376 | 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.
| None | 9 | 9 | 3 7 2 8 9 6 5 1 4
9 . . 4 5 . . . 7
1 . . 3 7 2 . 8 .
. . . 6 4 . . . 5
6 . . . 1 . . . .
. 1 . 7 . 5 . . .
. . . . 8 . . . 2
. 6 1 . . . 4 . .
2 3 8 9 6 4 7 5 1 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 372896514986451237145372689823649175657218943419735826594187362761523498238964751 #1 Easy (164)
Full House: r2c6=1
Naked Single: r2c2=8
Naked Single: r2c3=6
Naked Single: r5c4=2
Naked Single: r6c5=3
Full House: r8c5=2
Naked Single: r8c4=5
Full House: r7c4=1
Naked Single: r8c1=7
Naked Singl... | easy | null |
normal_sudoku_1549 | ......8.........979378..25..2...6748...7.2.6.5...........2...3..486........9..1.5 | 652479813814325697937861254321596748489732561576184329795218436148653972263947185 | puzzles1_unbiased | 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.
| None | 9 | 9 | . . . . . . 8 . .
. . . . . . . 9 7
9 3 7 8 . . 2 5 .
. 2 . . . 6 7 4 8
. . . 7 . 2 . 6 .
5 . . . . . . . .
. . . 2 . . . 3 .
. 4 8 6 . . . . .
. . . 9 . . 1 . 5 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 652479813814325697937861254321596748489732561576184329795218436148653972263947185 #1 Easy (250)
Naked Single: r1c8=1
Naked Single: r8c7=9
Naked Single: r6c8=2
Naked Single: r6c7=3
Naked Single: r8c9=2
Naked Single: r8c8=7
Full House: r9c8=8
Naked Single: r5c7=5
Hidden Single: r6c2=7
Naked ... | easy | Basic 9x9 Sudoku 1549 |
normal_sudoku_284 | 15.6.7..276...45.124.5197....1348.9...4..5....3..614....6.73..44..1.6....174.2.5. | 158637942769824531243519768671348295824795316935261487586973124492156873317482659 | normal_sudoku_284 | 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.
| None | 9 | 9 | 1 5 . 6 . 7 . . 2
7 6 . . . 4 5 . 1
2 4 . 5 1 9 7 . .
. . 1 3 4 8 . 9 .
. . 4 . . 5 . . .
. 3 . . 6 1 4 . .
. . 6 . 7 3 . . 4
4 . . 1 . 6 . . .
. 1 7 4 . 2 . 5 . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 158637942769824531243519768671348295824795316935261487586973124492156873317482659 #1 Easy (248)
Hidden Single: r2c3=9
Hidden Single: r1c7=9
Hidden Single: r1c8=4
Hidden Single: r9c1=3
Hidden Single: r7c1=5
Naked Single: r4c1=6
Naked Single: r4c7=2
Naked Single: r4c2=7
Full House: r4c9=5
Hi... | easy | null |
normal_sudoku_1306 | .1.62..9...9.7.2.1..21938......4.12.12.9...7.43..12....76.84319983761452..1...... | 314628795869475231752193846695847123128936574437512968576284319983761452241359687 | normal_sudoku_1306 | 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.
| None | 9 | 9 | . 1 . 6 2 . . 9 .
. . 9 . 7 . 2 . 1
. . 2 1 9 3 8 . .
. . . . 4 . 1 2 .
1 2 . 9 . . . 7 .
4 3 . . 1 2 . . .
. 7 6 . 8 4 3 1 9
9 8 3 7 6 1 4 5 2
. . 1 . . . . . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 314628795869475231752193846695847123128936574437512968576284319983761452241359687 #1 Easy (300)
Hidden Single: r2c4=4
Hidden Single: r2c8=3
Hidden Single: r6c7=9
Hidden Single: r4c2=9
Hidden Single: r9c6=9
Hidden Single: r6c3=7
Hidden Single: r4c6=7
Hidden Single: r5c9=4
Hidden Single: r9c2=4... | easy | null |
normal_sudoku_6627 | .4.7....2..5....7.....3.4..8..91.52..9.2857.....47386952.6.1.48..83.....1...5.... | 349768152685124973712539486873916524496285731251473869527691348968347215134852697 | normal_sudoku_6627 | 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.
| None | 9 | 9 | . 4 . 7 . . . . 2
. . 5 . . . . 7 .
. . . . 3 . 4 . .
8 . . 9 1 . 5 2 .
. 9 . 2 8 5 7 . .
. . . 4 7 3 8 6 9
5 2 . 6 . 1 . 4 8
. . 8 3 . . . . .
1 . . . 5 . . . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 349768152685124973712539486873916524496285731251473869527691348968347215134852697 #1 Easy (192)
Full House: r4c6=6
Naked Single: r7c5=9
Naked Single: r6c1=2
Naked Single: r9c4=8
Naked Single: r1c5=6
Naked Single: r7c7=3
Full House: r7c3=7
Naked Single: r6c3=1
Full House: r6c2=5
Naked Singl... | easy | null |
normal_sudoku_2428 | 28.935.463.4...198.6.8.435..9....42.723....8141....6.....326814.32......14.5.7... | 281935746354762198967814352896153427723649581415278639579326814632481975148597263 | normal_sudoku_2428 | 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.
| None | 9 | 9 | 2 8 . 9 3 5 . 4 6
3 . 4 . . . 1 9 8
. 6 . 8 . 4 3 5 .
. 9 . . . . 4 2 .
7 2 3 . . . . 8 1
4 1 . . . . 6 . .
. . . 3 2 6 8 1 4
. 3 2 . . . . . .
1 4 . 5 . 7 . . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 281935746354762198967814352896153427723649581415278639579326814632481975148597263 #1 Easy (164)
Naked Single: r1c7=7
Full House: r1c3=1
Full House: r3c9=2
Naked Single: r5c6=9
Naked Single: r3c1=9
Naked Single: r2c6=2
Naked Single: r5c7=5
Naked Single: r3c3=7
Full House: r2c2=5
Full House:... | easy | null |
normal_sudoku_1224 | 37..1.....1.4...3.684793251...3.1592.5.2.93..932.....6....3..8.1.3.....5....5.7.3 | 375612849219485637684793251768341592451269378932578416527936184143827965896154723 | normal_sudoku_1224 | 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.
| None | 9 | 9 | 3 7 . . 1 . . . .
. 1 . 4 . . . 3 .
6 8 4 7 9 3 2 5 1
. . . 3 . 1 5 9 2
. 5 . 2 . 9 3 . .
9 3 2 . . . . . 6
. . . . 3 . . 8 .
1 . 3 . . . . . 5
. . . . 5 . 7 . 3 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 375612849219485637684793251768341592451269378932578416527936184143827965896154723 #1 Easy (330)
Hidden Single: r1c6=2
Hidden Single: r2c1=2
Hidden Single: r5c3=1
Hidden Single: r2c9=7
Hidden Single: r8c5=2
Hidden Single: r7c2=2
Hidden Single: r7c1=5
Hidden Single: r5c5=6
Naked Single: r2c5=8
... | easy | null |
normal_sudoku_2285 | ...8..276...7.2..1.2.......286493157...685.424.52178.985.92.7.49.4.78.2..725.4... | 341859276598762431627341985286493157719685342435217869853926714964178523172534698 | normal_sudoku_2285 | 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.
| None | 9 | 9 | . . . 8 . . 2 7 6
. . . 7 . 2 . . 1
. 2 . . . . . . .
2 8 6 4 9 3 1 5 7
. . . 6 8 5 . 4 2
4 . 5 2 1 7 8 . 9
8 5 . 9 2 . 7 . 4
9 . 4 . 7 8 . 2 .
. 7 2 5 . 4 . . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 341859276598762431627341985286493157719685342435217869853926714964178523172534698 #1 Easy (158)
Naked Single: r5c7=3
Full House: r6c8=6
Full House: r6c2=3
Hidden Single: r7c6=6
Naked Single: r9c5=3
Full House: r8c4=1
Full House: r3c4=3
Naked Single: r9c9=8
Naked Single: r8c2=6
Naked Single... | easy | null |
normal_sudoku_2818 | ..69.3.52.7..6..14.9..4..86168.3..7.3528..649749.5.138....2..91.....852.....7.863 | 416983752873265914295741386168439275352817649749652138587326491634198527921574863 | normal_sudoku_2818 | 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.
| None | 9 | 9 | . . 6 9 . 3 . 5 2
. 7 . . 6 . . 1 4
. 9 . . 4 . . 8 6
1 6 8 . 3 . . 7 .
3 5 2 8 . . 6 4 9
7 4 9 . 5 . 1 3 8
. . . . 2 . . 9 1
. . . . . 8 5 2 .
. . . . 7 . 8 6 3 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 416983752873265914295741386168439275352817649749652138587326491634198527921574863 #1 Easy (156)
Naked Single: r1c7=7
Naked Single: r4c9=5
Full House: r4c7=2
Full House: r8c9=7
Full House: r7c7=4
Naked Single: r5c5=1
Full House: r5c6=7
Naked Single: r3c7=3
Full House: r2c7=9
Naked Single: r... | easy | null |
normal_sudoku_982 | .42.1...61..7..3.2...........46.3..16.....783...1..96..9...54.7.3..7.....8...6... | 342519876158764392967328145874693251619452783523187964296835417435971628781246539 | puzzles1_unbiased | 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.
| None | 9 | 9 | . 4 2 . 1 . . . 6
1 . . 7 . . 3 . 2
. . . . . . . . .
. . 4 6 . 3 . . 1
6 . . . . . 7 8 3
. . . 1 . . 9 6 .
. 9 . . . 5 4 . 7
. 3 . . 7 . . . .
. 8 . . . 6 . . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 342519876158764392967328145874693251619452783523187964296835417435971628781246539 #1 Easy (366)
Naked Single: r7c1=2
Hidden Single: r6c9=4
Hidden Single: r6c6=7
Hidden Single: r5c2=1
Hidden Single: r7c3=6
Hidden Single: r8c7=6
Hidden Single: r8c6=1
Naked Single: r8c3=5
Naked Single: r5c3=9
... | easy | Basic 9x9 Sudoku 982 |
normal_sudoku_1711 | 3...8.762..15..493.6...4815...732..1...4982.672.651..9.4.21...8..7.6.1.49......37 | 354189762871526493269374815496732581135498276728651349643217958587963124912845637 | normal_sudoku_1711 | 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.
| None | 9 | 9 | 3 . . . 8 . 7 6 2
. . 1 5 . . 4 9 3
. 6 . . . 4 8 1 5
. . . 7 3 2 . . 1
. . . 4 9 8 2 . 6
7 2 . 6 5 1 . . 9
. 4 . 2 1 . . . 8
. . 7 . 6 . 1 . 4
9 . . . . . . 3 7 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 354189762871526493269374815496732581135498276728651349643217958587963124912845637 #1 Easy (160)
Naked Single: r1c6=9
Naked Single: r4c7=5
Naked Single: r6c7=3
Naked Single: r3c1=2
Naked Single: r9c4=8
Naked Single: r7c8=5
Naked Single: r9c5=4
Naked Single: r9c6=5
Naked Single: r1c2=5
Naked... | easy | null |
normal_sudoku_3574 | ..7.3.....6.......3...758...2.6.1.7.5...8.1....15....46....9.4.19..28..62..1..9.. | 857936412469812735312475869923641578546287193781593624678359241194728356235164987 | puzzles4_forum_hardest_1905 | 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.
| None | 9 | 9 | . . 7 . 3 . . . .
. 6 . . . . . . .
3 . . . 7 5 8 . .
. 2 . 6 . 1 . 7 .
5 . . . 8 . 1 . .
. . 1 5 . . . . 4
6 . . . . 9 . 4 .
1 9 . . 2 8 . . 6
2 . . 1 . . 9 . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 857936412469812735312475869923641578546287193781593624678359241194728356235164987 #1 Medium (412)
Naked Single: r6c5=9
Naked Single: r7c5=5
Naked Single: r4c5=4
Naked Single: r2c5=1
Full House: r9c5=6
Hidden Single: r1c6=6
Hidden Single: r5c3=6
Hidden Single: r3c8=6
Hidden Single: r6c1=7
H... | medium | Basic 9x9 Sudoku 3574 |
normal_sudoku_866 | .2..7....5......9.748..25...1.2...8...54.8..9.....1.....9.....2...81..75...9..634 | 921576348536184297748392561413259786675438129892761453359647812264813975187925634 | puzzles1_unbiased | 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.
| None | 9 | 9 | . 2 . . 7 . . . .
5 . . . . . . 9 .
7 4 8 . . 2 5 . .
. 1 . 2 . . . 8 .
. . 5 4 . 8 . . 9
. . . . . 1 . . .
. . 9 . . . . . 2
. . . 8 1 . . 7 5
. . . 9 . . 6 3 4 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 921576348536184297748392561413259786675438129892761453359647812264813975187925634 #1 Easy (306)
Naked Single: r7c8=1
Naked Single: r8c7=9
Full House: r7c7=8
Naked Single: r3c8=6
Naked Single: r1c8=4
Naked Single: r5c8=2
Full House: r6c8=5
Hidden Single: r1c1=9
Hidden Single: r6c2=9
Hidden ... | easy | Basic 9x9 Sudoku 866 |
normal_sudoku_1447 | .6732.14.2.4....3.13...67.27482.3..1356718294921654378....3......35.2......86...3 | 867325149294187635135946782748293561356718294921654378612439857483572916579861423 | normal_sudoku_1447 | 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.
| None | 9 | 9 | . 6 7 3 2 . 1 4 .
2 . 4 . . . . 3 .
1 3 . . . 6 7 . 2
7 4 8 2 . 3 . . 1
3 5 6 7 1 8 2 9 4
9 2 1 6 5 4 3 7 8
. . . . 3 . . . .
. . 3 5 . 2 . . .
. . . 8 6 . . . 3 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 867325149294187635135946782748293561356718294921654378612439857483572916579861423 #1 Easy (154)
Full House: r4c5=9
Hidden Single: r1c1=8
Naked Single: r2c2=9
Full House: r3c3=5
Naked Single: r2c4=1
Naked Single: r3c8=8
Naked Single: r3c5=4
Full House: r3c4=9
Full House: r7c4=4
Naked Single... | easy | null |
normal_sudoku_2818 | ..69.3..2.7..6..1..9..4..8.168.3..7.3.28..6..7............2..91.....85......7.863 | 416983752873265914295741386168439275352817649749652138587326491634198527921574863 | puzzles1_unbiased | 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.
| None | 9 | 9 | . . 6 9 . 3 . . 2
. 7 . . 6 . . 1 .
. 9 . . 4 . . 8 .
1 6 8 . 3 . . 7 .
3 . 2 8 . . 6 . .
7 . . . . . . . .
. . . . 2 . . 9 1
. . . . . 8 5 . .
. . . . 7 . 8 6 3 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 416983752873265914295741386168439275352817649749652138587326491634198527921574863 #1 Easy (238)
Hidden Single: r3c9=6
Hidden Single: r6c3=9
Hidden Single: r6c7=1
Naked Single: r6c5=5
Naked Single: r6c2=4
Full House: r5c2=5
Naked Single: r6c9=8
Naked Single: r5c8=4
Naked Single: r1c8=5
Nake... | easy | Basic 9x9 Sudoku 2818 |
normal_sudoku_702 | 4973.58..25....49.8.6.9457.5.2.4.6..964...735...65...97.5...1.....5..9.2.294.83.7 | 497365821253187496816294573532749618964821735178653249785932164341576982629418357 | normal_sudoku_702 | 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.
| None | 9 | 9 | 4 9 7 3 . 5 8 . .
2 5 . . . . 4 9 .
8 . 6 . 9 4 5 7 .
5 . 2 . 4 . 6 . .
9 6 4 . . . 7 3 5
. . . 6 5 . . . 9
7 . 5 . . . 1 . .
. . . 5 . . 9 . 2
. 2 9 4 . 8 3 . 7 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 497365821253187496816294573532749618964821735178653249785932164341576982629418357 #1 Easy (240)
Full House: r6c7=2
Hidden Single: r6c8=4
Hidden Single: r9c8=5
Hidden Single: r3c4=2
Naked Single: r7c4=9
Hidden Single: r1c8=2
Hidden Single: r7c9=4
Hidden Single: r8c2=4
Hidden Single: r4c6=9
... | easy | null |
normal_sudoku_1720 | 35.....21.1.....9.79.12....6.....1.9.....9.....97..635137948256.6....843284.3.917 | 356894721412657398798123564623485179571369482849712635137948256965271843284536917 | normal_sudoku_1720 | 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.
| None | 9 | 9 | 3 5 . . . . . 2 1
. 1 . . . . . 9 .
7 9 . 1 2 . . . .
6 . . . . . 1 . 9
. . . . . 9 . . .
. . 9 7 . . 6 3 5
1 3 7 9 4 8 2 5 6
. 6 . . . . 8 4 3
2 8 4 . 3 . 9 1 7 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 356894721412657398798123564623485179571369482849712635137948256965271843284536917 #1 Easy (208)
Naked Single: r8c3=5
Full House: r8c1=9
Naked Single: r8c4=2
Hidden Single: r5c3=1
Hidden Single: r1c5=9
Hidden Single: r5c9=2
Hidden Single: r3c8=6
Naked Single: r3c3=8
Naked Single: r1c3=6
Nak... | easy | null |
normal_sudoku_3374 | 1.6.84..3.3.671429..9..3.1..9174..3.3.21.8..447.3..1..5.38....1.87.153...14.3.... | 126984753835671429749523618691742835352168974478359162563897241287415396914236587 | normal_sudoku_3374 | 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.
| None | 9 | 9 | 1 . 6 . 8 4 . . 3
. 3 . 6 7 1 4 2 9
. . 9 . . 3 . 1 .
. 9 1 7 4 . . 3 .
3 . 2 1 . 8 . . 4
4 7 . 3 . . 1 . .
5 . 3 8 . . . . 1
. 8 7 . 1 5 3 . .
. 1 4 . 3 . . . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 126984753835671429749523618691742835352168974478359162563897241287415396914236587 #1 Easy (170)
Naked Single: r2c1=8
Full House: r2c3=5
Full House: r6c3=8
Naked Single: r4c1=6
Full House: r5c2=5
Naked Single: r1c2=2
Naked Single: r4c6=2
Naked Single: r3c1=7
Full House: r3c2=4
Full House: r... | easy | null |
normal_sudoku_6997 | ..5.4.71..7...5.8.18.67...57319245682.....947.9...8132...2.78....74.6..1....3.6.. | 625849713479315286183672495731924568268153947594768132316297854957486321842531679 | normal_sudoku_6997 | 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.
| None | 9 | 9 | . . 5 . 4 . 7 1 .
. 7 . . . 5 . 8 .
1 8 . 6 7 . . . 5
7 3 1 9 2 4 5 6 8
2 . . . . . 9 4 7
. 9 . . . 8 1 3 2
. . . 2 . 7 8 . .
. . 7 4 . 6 . . 1
. . . . 3 . 6 . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 625849713479315286183672495731924568268153947594768132316297854957486321842531679 #1 Medium (308)
Hidden Single: r1c4=8
Hidden Single: r5c3=8
Hidden Single: r6c4=7
Hidden Single: r9c8=7
Hidden Single: r8c5=8
Hidden Single: r9c1=8
Locked Candidates Type 1 (Pointing): 2 in b9 => r8c2<>2
Naked Sing... | medium | null |
normal_sudoku_4700 | 64.5..9...53...46.1.93.4.5..61.4..3543..5...99.5.3.....1.47..96376289514.94...3.. | 647521983253897461189364752761948235438152679925736148512473896376289514894615327 | normal_sudoku_4700 | 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.
| None | 9 | 9 | 6 4 . 5 . . 9 . .
. 5 3 . . . 4 6 .
1 . 9 3 . 4 . 5 .
. 6 1 . 4 . . 3 5
4 3 . . 5 . . . 9
9 . 5 . 3 . . . .
. 1 . 4 7 . . 9 6
3 7 6 2 8 9 5 1 4
. 9 4 . . . 3 . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 647521983253897461189364752761948235438152679925736148512473896376289514894615327 #1 Easy (236)
Hidden Single: r3c5=6
Naked Single: r9c5=1
Naked Single: r1c5=2
Full House: r2c5=9
Naked Single: r9c4=6
Naked Single: r9c6=5
Full House: r7c6=3
Hidden Single: r1c9=3
Hidden Single: r4c4=9
Hidden... | easy | null |
normal_sudoku_2944 | 57........2..7......3..57.2..5..19..2817936544..856..1..651....9.863.1......89..6 | 579124863624378519813965742365241987281793654497856231736512498948637125152489376 | normal_sudoku_2944 | 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.
| None | 9 | 9 | 5 7 . . . . . . .
. 2 . . 7 . . . .
. . 3 . . 5 7 . 2
. . 5 . . 1 9 . .
2 8 1 7 9 3 6 5 4
4 . . 8 5 6 . . 1
. . 6 5 1 . . . .
9 . 8 6 3 . 1 . .
. . . . 8 9 . . 6 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 579124863624378519813965742365241987281793654497856231736512498948637125152489376 #1 Easy (220)
Hidden Single: r9c3=2
Naked Single: r9c4=4
Naked Single: r4c4=2
Full House: r4c5=4
Naked Single: r3c5=6
Full House: r1c5=2
Hidden Single: r6c3=7
Hidden Single: r1c8=6
Hidden Single: r4c2=6
Naked... | easy | null |
normal_sudoku_2166 | .2..9...81..7.2...93..6.........4.27..92......5.8...6..7..1.582....86..9......1.. | 724395618168742395935168274381654927649271853257839461476913582512486739893527146 | puzzles1_unbiased | 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.
| None | 9 | 9 | . 2 . . 9 . . . 8
1 . . 7 . 2 . . .
9 3 . . 6 . . . .
. . . . . 4 . 2 7
. . 9 2 . . . . .
. 5 . 8 . . . 6 .
. 7 . . 1 . 5 8 2
. . . . 8 6 . . 9
. . . . . . 1 . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 724395618168742395935168274381654927649271853257839461476913582512486739893527146 #1 Medium (530)
Hidden Single: r3c7=2
Hidden Single: r3c6=8
Hidden Single: r9c5=2
Hidden Single: r4c4=6
Hidden Single: r9c2=9
Hidden Single: r2c8=9
Hidden Single: r9c9=6
Hidden Single: r2c5=4
Hidden Single: r9c6... | medium | Basic 9x9 Sudoku 2166 |
normal_sudoku_4872 | 93.821467..15.4...24.3...1.61.......4921568735.3.4..2...9415.8....7....5.5...87.. | 935821467871564239246379518617283954492156873583947621729415386368792145154638792 | normal_sudoku_4872 | 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.
| None | 9 | 9 | 9 3 . 8 2 1 4 6 7
. . 1 5 . 4 . . .
2 4 . 3 . . . 1 .
6 1 . . . . . . .
4 9 2 1 5 6 8 7 3
5 . 3 . 4 . . 2 .
. . 9 4 1 5 . 8 .
. . . 7 . . . . 5
. 5 . . . 8 7 . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 935821467871564239246379518617283954492156873583947621729415386368792145154638792 #1 Easy (164)
Full House: r1c3=5
Naked Single: r6c4=9
Naked Single: r4c4=2
Full House: r9c4=6
Naked Single: r6c6=7
Naked Single: r9c3=4
Naked Single: r3c6=9
Naked Single: r4c6=3
Full House: r4c5=8
Full House:... | easy | null |
normal_sudoku_2431 | 1426.39789.6...35237..9246121.37.69..63.2..177.9...2.3.2..3.....9.28..3..3.1.4.29 | 142653978986741352375892461218375694463928517759416283821539746694287135537164829 | normal_sudoku_2431 | 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.
| None | 9 | 9 | 1 4 2 6 . 3 9 7 8
9 . 6 . . . 3 5 2
3 7 . . 9 2 4 6 1
2 1 . 3 7 . 6 9 .
. 6 3 . 2 . . 1 7
7 . 9 . . . 2 . 3
. 2 . . 3 . . . .
. 9 . 2 8 . . 3 .
. 3 . 1 . 4 . 2 9 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 142653978986741352375892461218375694463928517759416283821539746694287135537164829 #1 Easy (140)
Full House: r1c5=5
Naked Single: r2c2=8
Full House: r3c3=5
Full House: r3c4=8
Full House: r6c2=5
Naked Single: r9c5=6
Naked Single: r6c4=4
Naked Single: r2c4=7
Naked Single: r6c5=1
Full House: r... | easy | null |
normal_sudoku_2647 | 142.5...9398.6..5.576...1..289.74...6132..4..457.36...9.......7725.436818....5.4. | 142357869398461752576892134289574316613289475457136298934618527725943681861725943 | normal_sudoku_2647 | 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.
| None | 9 | 9 | 1 4 2 . 5 . . . 9
3 9 8 . 6 . . 5 .
5 7 6 . . . 1 . .
2 8 9 . 7 4 . . .
6 1 3 2 . . 4 . .
4 5 7 . 3 6 . . .
9 . . . . . . . 7
7 2 5 . 4 3 6 8 1
8 . . . . 5 . 4 . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 142357869398461752576892134289574316613289475457136298934618527725943681861725943 #1 Easy (186)
Full House: r8c4=9
Naked Single: r9c3=1
Full House: r7c3=4
Naked Single: r9c5=2
Naked Single: r9c9=3
Naked Single: r7c8=2
Naked Single: r9c2=6
Full House: r7c2=3
Naked Single: r9c7=9
Full House:... | easy | null |
normal_sudoku_375 | .8...1..9971..65.2.367..8.....6..2.....1......63..27.8...8..9.57.52........3.5.4. | 482531679971486532536729814847653291259178463163942758314867925795214386628395147 | puzzles1_unbiased | 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.
| None | 9 | 9 | . 8 . . . 1 . . 9
9 7 1 . . 6 5 . 2
. 3 6 7 . . 8 . .
. . . 6 . . 2 . .
. . . 1 . . . . .
. 6 3 . . 2 7 . 8
. . . 8 . . 9 . 5
7 . 5 2 . . . . .
. . . 3 . 5 . 4 . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 482531679971486532536729814847653291259178463163942758314867925795214386628395147 #1 Easy (204)
Naked Single: r2c4=4
Naked Single: r2c8=3
Full House: r2c5=8
Naked Single: r3c8=1
Naked Single: r1c4=5
Full House: r6c4=9
Naked Single: r3c6=9
Naked Single: r3c9=4
Naked Single: r6c8=5
Naked Sin... | easy | Basic 9x9 Sudoku 375 |
normal_sudoku_169 | 8.......6......32.1.45...8.49.........349...5.61.7......7.526.3.4..1.2.....6.3.9. | 872934516659187324134526987498365172723491865561278439917852643346719258285643791 | puzzles1_unbiased | 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.
| None | 9 | 9 | 8 . . . . . . . 6
. . . . . . 3 2 .
1 . 4 5 . . . 8 .
4 9 . . . . . . .
. . 3 4 9 . . . 5
. 6 1 . 7 . . . .
. . 7 . 5 2 6 . 3
. 4 . . 1 . 2 . .
. . . 6 . 3 . 9 . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 872934516659187324134526987498365172723491865561278439917852643346719258285643791 #1 Easy (252)
Naked Single: r7c1=9
Naked Single: r7c4=8
Naked Single: r7c2=1
Full House: r7c8=4
Naked Single: r9c5=4
Naked Single: r6c8=3
Naked Single: r6c4=2
Naked Single: r6c1=5
Naked Single: r6c6=8
Naked S... | easy | Basic 9x9 Sudoku 169 |
normal_sudoku_4561 | 8597..2..64...5..1.13............7....1.43..993..67142.9..8.427.8..79315...4..698 | 859714236642935871713628954564192783271843569938567142195386427486279315327451698 | normal_sudoku_4561 | 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.
| None | 9 | 9 | 8 5 9 7 . . 2 . .
6 4 . . . 5 . . 1
. 1 3 . . . . . .
. . . . . . 7 . .
. . 1 . 4 3 . . 9
9 3 . . 6 7 1 4 2
. 9 . . 8 . 4 2 7
. 8 . . 7 9 3 1 5
. . . 4 . . 6 9 8 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 859714236642935871713628954564192783271843569938567142195386427486279315327451698 #1 Medium (452)
Locked Candidates Type 1 (Pointing): 6 in b7 => r4c3<>6
Naked Triple: 3,4,6 in r1c89,r3c9 => r2c8<>3, r3c8<>6
Locked Candidates Type 1 (Pointing): 3 in b3 => r1c5<>3
Naked Single: r1c5=1
Naked Triple: 1,2,6 ... | medium | null |
normal_sudoku_2645 | ..1.86.9.63915.8..58.9..1.6.5.6..2..3.6.9.71.1...7..6.863.4.95.2...6.483..58..6.. | 471286395639154827582937146754618239326495718198372564863741952217569483945823671 | normal_sudoku_2645 | 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.
| None | 9 | 9 | . . 1 . 8 6 . 9 .
6 3 9 1 5 . 8 . .
5 8 . 9 . . 1 . 6
. 5 . 6 . . 2 . .
3 . 6 . 9 . 7 1 .
1 . . . 7 . . 6 .
8 6 3 . 4 . 9 5 .
2 . . . 6 . 4 8 3
. . 5 8 . . 6 . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 471286395639154827582937146754618239326495718198372564863741952217569483945823671 #1 Easy (174)
Naked Single: r8c3=7
Naked Single: r8c4=5
Hidden Single: r4c1=7
Naked Single: r1c1=4
Full House: r9c1=9
Naked Single: r3c3=2
Full House: r1c2=7
Naked Single: r8c2=1
Full House: r8c6=9
Full House... | easy | null |
normal_sudoku_2140 | ...1.5.3..1..6...47.........7.658.13...2...8.8..4..6..621549378539...146487...259 | 946185732318762594752934861274658913165293487893471625621549378539827146487316259 | normal_sudoku_2140 | 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.
| None | 9 | 9 | . . . 1 . 5 . 3 .
. 1 . . 6 . . . 4
7 . . . . . . . .
. 7 . 6 5 8 . 1 3
. . . 2 . . . 8 .
8 . . 4 . . 6 . .
6 2 1 5 4 9 3 7 8
5 3 9 . . . 1 4 6
4 8 7 . . . 2 5 9 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 946185732318762594752934861274658913165293487893471625621549378539827146487316259 #1 Easy (268)
Naked Single: r9c4=3
Naked Single: r9c5=1
Full House: r9c6=6
Hidden Single: r5c1=1
Hidden Single: r3c6=4
Hidden Single: r3c9=1
Hidden Single: r3c8=6
Hidden Single: r6c6=1
Hidden Single: r2c1=3
H... | easy | null |
normal_sudoku_1961 | 1.7......2...1.4.6.9......8..37..259....8......41..6......7............46328.5... | 147658932258319476396427518813764259769582143524193687481976325975231864632845791 | puzzles1_unbiased | 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.
| None | 9 | 9 | 1 . 7 . . . . . .
2 . . . 1 . 4 . 6
. 9 . . . . . . 8
. . 3 7 . . 2 5 9
. . . . 8 . . . .
. . 4 1 . . 6 . .
. . . . 7 . . . .
. . . . . . . . 4
6 3 2 8 . 5 . . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 147658932258319476396427518813764259769582143524193687481976325975231864632845791 #1 Medium (448)
Naked Single: r4c1=8
Hidden Single: r4c2=1
Hidden Single: r6c8=8
Hidden Single: r5c8=4
Hidden Single: r3c1=3
Hidden Single: r9c5=4
Naked Single: r4c5=6
Full House: r4c6=4
Hidden Single: r7c1=4
... | medium | Basic 9x9 Sudoku 1961 |
normal_sudoku_2103 | ..2.1.....9...3..48176..9..62.8....1..1.2.3...5.1.7.9.......8.5.3....47...5..4.39 | 342918567596273184817645923623859741971426358458137692764392815239581476185764239 | puzzles4_forum_hardest_1905 | 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.
| None | 9 | 9 | . . 2 . 1 . . . .
. 9 . . . 3 . . 4
8 1 7 6 . . 9 . .
6 2 . 8 . . . . 1
. . 1 . 2 . 3 . .
. 5 . 1 . 7 . 9 .
. . . . . . 8 . 5
. 3 . . . . 4 7 .
. . 5 . . 4 . 3 9 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 342918567596273184817645923623859741971426358458137692764392815239581476185764239 #1 Easy (284)
Naked Single: r2c1=5
Naked Single: r2c3=6
Naked Single: r1c2=4
Full House: r1c1=3
Naked Single: r6c1=4
Hidden Single: r4c7=7
Hidden Single: r3c5=4
Hidden Single: r3c9=3
Hidden Single: r7c4=3
Hid... | easy | Basic 9x9 Sudoku 2103 |
normal_sudoku_2377 | 8725.6......2....8.193..526...4....1...93.2.52...5..97.5674..827.48..6........7.. | 872516439563294178419387526935472861687931245241658397156743982794825613328169754 | normal_sudoku_2377 | 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.
| None | 9 | 9 | 8 7 2 5 . 6 . . .
. . . 2 . . . . 8
. 1 9 3 . . 5 2 6
. . . 4 . . . . 1
. . . 9 3 . 2 . 5
2 . . . 5 . . 9 7
. 5 6 7 4 . . 8 2
7 . 4 8 . . 6 . .
. . . . . . 7 . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 872516439563294178419387526935472861687931245241658397156743982794825613328169754 #1 Medium (448)
Naked Single: r3c1=4
Hidden Single: r2c8=7
Hidden Single: r2c6=4
Locked Candidates Type 1 (Pointing): 3 in b1 => r2c7<>3
Locked Candidates Type 1 (Pointing): 1 in b2 => r89c5<>1
Locked Candidates Type 1 (... | medium | null |
normal_sudoku_2997 | .548.6...6..5238....87.4...8..9713522..635...531248967...1......7...9..118..5..9. | 754816239619523874328794615846971352297635148531248967965187423472369581183452796 | normal_sudoku_2997 | 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.
| None | 9 | 9 | . 5 4 8 . 6 . . .
6 . . 5 2 3 8 . .
. . 8 7 . 4 . . .
8 . . 9 7 1 3 5 2
2 . . 6 3 5 . . .
5 3 1 2 4 8 9 6 7
. . . 1 . . . . .
. 7 . . . 9 . . 1
1 8 . . 5 . . 9 . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 754816239619523874328794615846971352297635148531248967965187423472369581183452796 #1 Easy (164)
Naked Single: r4c3=6
Full House: r4c2=4
Naked Single: r5c2=9
Full House: r5c3=7
Naked Single: r2c2=1
Naked Single: r2c3=9
Naked Single: r3c2=2
Full House: r7c2=6
Naked Single: r2c9=4
Full House:... | easy | null |
normal_sudoku_1549 | .5.4..813.......979378..25..2...6748...7.256.57....32....2...3..486..972.6.9..185 | 652479813814325697937861254321596748489732561576184329795218436148653972263947185 | normal_sudoku_1549 | 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.
| None | 9 | 9 | . 5 . 4 . . 8 1 3
. . . . . . . 9 7
9 3 7 8 . . 2 5 .
. 2 . . . 6 7 4 8
. . . 7 . 2 5 6 .
5 7 . . . . 3 2 .
. . . 2 . . . 3 .
. 4 8 6 . . 9 7 2
. 6 . 9 . . 1 8 5 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 652479813814325697937861254321596748489732561576184329795218436148653972263947185 #1 Easy (178)
Naked Single: r3c6=1
Naked Single: r6c4=1
Naked Single: r3c5=6
Full House: r3c9=4
Full House: r2c7=6
Full House: r7c7=4
Full House: r7c9=6
Naked Single: r6c9=9
Full House: r5c9=1
Hidden Single: ... | easy | null |
normal_sudoku_1497 | .4..2.7..72.1.9.8.36.....19.1...7.9.......4..2...86....8...3...9..2..1.........7. | 149628753725139684368754219516347892893512467274986531681473925937265148452891376 | puzzles1_unbiased | 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.
| None | 9 | 9 | . 4 . . 2 . 7 . .
7 2 . 1 . 9 . 8 .
3 6 . . . . . 1 9
. 1 . . . 7 . 9 .
. . . . . . 4 . .
2 . . . 8 6 . . .
. 8 . . . 3 . . .
9 . . 2 . . 1 . .
. . . . . . . 7 . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 149628753725139684368754219516347892893512467274986531681473925937265148452891376 #1 Medium (464)
Naked Single: r2c3=5
Naked Single: r3c3=8
Naked Single: r1c1=1
Full House: r1c3=9
Hidden Single: r3c7=2
Hidden Single: r2c9=4
Hidden Single: r5c6=2
Hidden Single: r6c9=1
Hidden Single: r4c9=2
... | medium | Basic 9x9 Sudoku 1497 |
normal_sudoku_1351 | .89.6.1.7371.495.........39.9...582.82..9.75..35.8.69.4.892.3.5..3...9..95..37..8 | 289563147371249586546178239697415823824396751135782694468921375713854962952637418 | normal_sudoku_1351 | 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.
| None | 9 | 9 | . 8 9 . 6 . 1 . 7
3 7 1 . 4 9 5 . .
. . . . . . . 3 9
. 9 . . . 5 8 2 .
8 2 . . 9 . 7 5 .
. 3 5 . 8 . 6 9 .
4 . 8 9 2 . 3 . 5
. . 3 . . . 9 . .
9 5 . . 3 7 . . 8 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 289563147371249586546178239697415823824396751135782694468921375713854962952637418 #1 Easy (174)
Naked Single: r1c8=4
Naked Single: r3c7=2
Full House: r9c7=4
Naked Single: r2c9=6
Full House: r2c8=8
Full House: r2c4=2
Naked Single: r1c6=3
Naked Single: r1c4=5
Full House: r1c1=2
Hidden Single... | easy | null |
normal_sudoku_2487 | 73.4.2...5..3...4242.6..39...27.513.3.5..428....23.9.......3....57.4...38635.74.. | 739452861586319742421678395692785134375194286148236957214963578957841623863527419 | normal_sudoku_2487 | 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.
| None | 9 | 9 | 7 3 . 4 . 2 . . .
5 . . 3 . . . 4 2
4 2 . 6 . . 3 9 .
. . 2 7 . 5 1 3 .
3 . 5 . . 4 2 8 .
. . . 2 3 . 9 . .
. . . . . 3 . . .
. 5 7 . 4 . . . 3
8 6 3 5 . 7 4 . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 739452861586319742421678395692785134375194286148236957214963578957841623863527419 #1 Medium (646)
Locked Candidates Type 1 (Pointing): 6 in b1 => r6c3<>6
Locked Candidates Type 2 (Claiming): 8 in c4 => r7c5,r8c6<>8
Naked Pair: 1,8 in r3c36 => r3c59<>1, r3c59<>8
Locked Candidates Type 1 (Pointing): 1 in b3 =... | medium | null |
normal_sudoku_6767 | ..9..8.5..6.54.9..5..9....38....4.272.1.75...7..28.3.5.178235.66..7..23..8.4.6... | 429368751163547982578912463895134627231675894746289315917823546654791238382456179 | normal_sudoku_6767 | 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.
| None | 9 | 9 | . . 9 . . 8 . 5 .
. 6 . 5 4 . 9 . .
5 . . 9 . . . . 3
8 . . . . 4 . 2 7
2 . 1 . 7 5 . . .
7 . . 2 8 . 3 . 5
. 1 7 8 2 3 5 . 6
6 . . 7 . . 2 3 .
. 8 . 4 . 6 . . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 429368751163547982578912463895134627231675894746289315917823546654791238382456179 #1 Easy (236)
Hidden Single: r8c9=8
Hidden Single: r9c3=2
Hidden Single: r7c8=4
Full House: r7c1=9
Naked Single: r9c1=3
Naked Single: r2c1=1
Full House: r1c1=4
Naked Single: r2c9=2
Naked Single: r3c3=8
Naked ... | easy | null |
normal_sudoku_2647 | ..2.5...93...6..5..76...1..289.74....1.2..4..4...36...........7....436818....5.4. | 142357869398461752576892134289574316613289475457136298934618527725943681861725943 | puzzles4_forum_hardest_1905 | 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.
| None | 9 | 9 | . . 2 . 5 . . . 9
3 . . . 6 . . 5 .
. 7 6 . . . 1 . .
2 8 9 . 7 4 . . .
. 1 . 2 . . 4 . .
4 . . . 3 6 . . .
. . . . . . . . 7
. . . . 4 3 6 8 1
8 . . . . 5 . 4 . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 142357869398461752576892134289574316613289475457136298934618527725943681861725943 #1 Easy (238)
Naked Single: r1c2=4
Naked Single: r6c2=5
Naked Single: r1c1=1
Naked Single: r2c2=9
Naked Single: r6c3=7
Naked Single: r2c3=8
Full House: r3c1=5
Naked Single: r8c2=2
Naked Single: r5c1=6
Full Ho... | easy | Basic 9x9 Sudoku 2647 |
normal_sudoku_1427 | .681297.....63....19.57.6..8...5.2..6..38.51.95..168......9.42.....4....749261385 | 468129753527634198193578642831957264674382519952416837386795421215843976749261385 | normal_sudoku_1427 | 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.
| None | 9 | 9 | . 6 8 1 2 9 7 . .
. . . 6 3 . . . .
1 9 . 5 7 . 6 . .
8 . . . 5 . 2 . .
6 . . 3 8 . 5 1 .
9 5 . . 1 6 8 . .
. . . . 9 . 4 2 .
. . . . 4 . . . .
7 4 9 2 6 1 3 8 5 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 468129753527634198193578642831957264674382519952416837386795421215843976749261385 #1 Easy (198)
Hidden Single: r5c9=9
Hidden Single: r4c4=9
Hidden Single: r6c3=2
Naked Single: r5c2=7
Naked Single: r2c2=2
Naked Single: r5c3=4
Full House: r5c6=2
Naked Single: r3c3=3
Naked Single: r3c8=4
Nake... | easy | null |
normal_sudoku_3717 | 7..5....2.38....7..6.7..3....1.4.........2.156..8...2.8..6.5.3..97.8....3.621..8. | 714539862238164579965728341521346798483972615679851423842695137197483256356217984 | puzzles4_forum_hardest_1905 | 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.
| None | 9 | 9 | 7 . . 5 . . . . 2
. 3 8 . . . . 7 .
. 6 . 7 . . 3 . .
. . 1 . 4 . . . .
. . . . . 2 . 1 5
6 . . 8 . . . 2 .
8 . . 6 . 5 . 3 .
. 9 7 . 8 . . . .
3 . 6 2 1 . . 8 . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 714539862238164579965728341521346798483972615679851423842695137197483256356217984 #1 Easy (378)
Hidden Single: r6c5=5
Hidden Single: r6c6=1
Hidden Single: r2c4=1
Hidden Single: r3c3=5
Hidden Single: r8c4=4
Naked Single: r8c6=3
Hidden Single: r2c7=5
Hidden Single: r8c8=5
Hidden Single: r7c3=2
... | easy | Basic 9x9 Sudoku 3717 |
normal_sudoku_5497 | .465........7.369.5...8..1.1...9..28.53.....7...4..1...8..5.2.99.2...4.1..5.3..8. | 346519872821743695579286314164397528253861947798425163687154239932678451415932786 | puzzles4_forum_hardest_1905 | 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.
| None | 9 | 9 | . 4 6 5 . . . . .
. . . 7 . 3 6 9 .
5 . . . 8 . . 1 .
1 . . . 9 . . 2 8
. 5 3 . . . . . 7
. . . 4 . . 1 . .
. 8 . . 5 . 2 . 9
9 . 2 . . . 4 . 1
. . 5 . 3 . . 8 . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 346519872821743695579286314164397528253861947798425163687154239932678451415932786 #1 Easy (204)
Naked Single: r5c7=9
Naked Single: r9c9=6
Naked Single: r9c7=7
Naked Single: r3c7=3
Naked Single: r7c8=3
Full House: r8c8=5
Naked Single: r9c1=4
Naked Single: r9c2=1
Naked Single: r1c7=8
Full Ho... | easy | Basic 9x9 Sudoku 5497 |
normal_sudoku_5186 | .9.8..3.756....18474.1...29.362..7......5394.9....8....7.4....1....8.2..6.9...4.. | 291845367563972184748136529836294715127653948954718632372469851415387296689521473 | normal_sudoku_5186 | 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.
| None | 9 | 9 | . 9 . 8 . . 3 . 7
5 6 . . . . 1 8 4
7 4 . 1 . . . 2 9
. 3 6 2 . . 7 . .
. . . . 5 3 9 4 .
9 . . . . 8 . . .
. 7 . 4 . . . . 1
. . . . 8 . 2 . .
6 . 9 . . . 4 . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 291845367563972184748136529836294715127653948954718632372469851415387296689521473 #1 Medium (436)
Hidden Single: r3c3=8
Hidden Single: r7c7=8
Hidden Single: r3c5=3
Hidden Single: r2c3=3
Hidden Single: r9c2=8
Locked Pair: 6,7 in r56c4 => r289c4,r6c5<>7, r6c5,r8c4<>6
Naked Single: r2c4=9
Locked Ca... | medium | null |
normal_sudoku_6218 | ...7...5614.6928....6.3...44....96....1.6...969.5...7.36..8...2.89..63...1.....68 | 938714256145692837726835914473129685851367429692548173367481592589276341214953768 | normal_sudoku_6218 | 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.
| None | 9 | 9 | . . . 7 . . . 5 6
1 4 . 6 9 2 8 . .
. . 6 . 3 . . . 4
4 . . . . 9 6 . .
. . 1 . 6 . . . 9
6 9 . 5 . . . 7 .
3 6 . . 8 . . . 2
. 8 9 . . 6 3 . .
. 1 . . . . . 6 8 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 938714256145692837726835914473129685851367429692548173367481592589276341214953768 #1 Easy (272)
Naked Single: r2c8=3
Naked Single: r2c9=7
Full House: r2c3=5
Hidden Single: r3c6=5
Hidden Single: r7c7=5
Naked Single: r8c9=1
Naked Single: r6c9=3
Full House: r4c9=5
Naked Single: r8c8=4
Naked S... | easy | null |
normal_sudoku_2867 | 4369872519712.3.6.285..1..3..3.9..2...4.2...7....36.4.6.75...8.54.3.....31...2..5 | 436987251971253864285641793753498126864125937192736548627514389548379612319862475 | normal_sudoku_2867 | 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.
| None | 9 | 9 | 4 3 6 9 8 7 2 5 1
9 7 1 2 . 3 . 6 .
2 8 5 . . 1 . . 3
. . 3 . 9 . . 2 .
. . 4 . 2 . . . 7
. . . . 3 6 . 4 .
6 . 7 5 . . . 8 .
5 4 . 3 . . . . .
3 1 . . . 2 . . 5 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 436987251971253864285641793753498126864125937192736548627514389548379612319862475 #1 Medium (534)
Hidden Single: r2c5=5
Hidden Single: r7c7=3
Hidden Single: r5c8=3
Hidden Single: r7c5=1
Hidden Single: r8c8=1
Locked Candidates Type 1 (Pointing): 4 in b2 => r3c7<>4
Locked Candidates Type 1 (Pointing)... | medium | null |
normal_sudoku_2808 | .6..8......95.6....3.4..5....2....7.....7.1621..8....4..319..........943....2..8. | 561287439429536718738419526392641875854973162176852394683194257215768943947325681 | puzzles1_unbiased | 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.
| None | 9 | 9 | . 6 . . 8 . . . .
. . 9 5 . 6 . . .
. 3 . 4 . . 5 . .
. . 2 . . . . 7 .
. . . . 7 . 1 6 2
1 . . 8 . . . . 4
. . 3 1 9 . . . .
. . . . . . 9 4 3
. . . . 2 . . 8 . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 561287439429536718738419526392641875854973162176852394683194257215768943947325681 #1 Easy (384)
Naked Single: r6c7=3
Naked Single: r3c5=1
Naked Single: r4c7=8
Naked Single: r2c5=3
Hidden Single: r3c9=6
Hidden Single: r6c6=2
Hidden Single: r1c4=2
Hidden Single: r4c5=4
Hidden Single: r9c9=1
... | easy | Basic 9x9 Sudoku 2808 |
normal_sudoku_629 | .4..3....835......6.1.....51..9..4.6...62..8.5..1..9.2.18....3..9.......2...6...8 | 947532861835416297621897345182973456479625183563148972718254639396781524254369718 | puzzles1_unbiased | 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.
| None | 9 | 9 | . 4 . . 3 . . . .
8 3 5 . . . . . .
6 . 1 . . . . . 5
1 . . 9 . . 4 . 6
. . . 6 2 . . 8 .
5 . . 1 . . 9 . 2
. 1 8 . . . . 3 .
. 9 . . . . . . .
2 . . . 6 . . . 8 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 947532861835416297621897345182973456479625183563148972718254639396781524254369718 #1 Easy (270)
Naked Single: r6c8=7
Naked Single: r5c2=7
Naked Single: r4c8=5
Naked Single: r3c2=2
Naked Single: r9c2=5
Naked Single: r4c2=8
Full House: r6c2=6
Naked Single: r4c5=7
Naked Single: r4c6=3
Full Ho... | easy | Basic 9x9 Sudoku 629 |
normal_sudoku_2729 | .638..12....3.4867.8.6.2.3.6..147..2..198.67....2..5...7.46.2.8..6728.5.8.25..7.6 | 463879125219354867587612439658147392321985674794236581975463218146728953832591746 | normal_sudoku_2729 | 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.
| None | 9 | 9 | . 6 3 8 . . 1 2 .
. . . 3 . 4 8 6 7
. 8 . 6 . 2 . 3 .
6 . . 1 4 7 . . 2
. . 1 9 8 . 6 7 .
. . . 2 . . 5 . .
. 7 . 4 6 . 2 . 8
. . 6 7 2 8 . 5 .
8 . 2 5 . . 7 . 6 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 463879125219354867587612439658147392321985674794236581975463218146728953832591746 #1 Medium (330)
Naked Single: r6c5=3
Naked Single: r5c6=5
Full House: r6c6=6
Naked Single: r1c6=9
Hidden Single: r9c5=9
Locked Candidates Type 1 (Pointing): 9 in b3 => r3c13<>9
Locked Candidates Type 1 (Pointing): 3 i... | medium | null |
normal_sudoku_2709 | 1.23.8...87..4.1....3...2.9..893...7.2...4.......1.6.8..5..6..1.6...345.....753.. | 192358764876249135453761289618932547527684913349517628935426871761893452284175396 | puzzles1_unbiased | 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.
| None | 9 | 9 | 1 . 2 3 . 8 . . .
8 7 . . 4 . 1 . .
. . 3 . . . 2 . 9
. . 8 9 3 . . . 7
. 2 . . . 4 . . .
. . . . 1 . 6 . 8
. . 5 . . 6 . . 1
. 6 . . . 3 4 5 .
. . . . 7 5 3 . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 192358764876249135453761289618932547527684913349517628935426871761893452284175396 #1 Easy (204)
Naked Single: r4c7=5
Naked Single: r8c9=2
Naked Single: r4c6=2
Naked Single: r1c7=7
Naked Single: r5c7=9
Full House: r7c7=8
Naked Single: r5c9=3
Naked Single: r9c9=6
Naked Single: r2c6=9
Naked S... | easy | Basic 9x9 Sudoku 2709 |
normal_sudoku_1164 | .3....581.8.1752...15....7.14735.....92....5...8.6...7..15396.88694.73....38.67.. | 736294581984175236215683479147358962692741853358962147471539628869427315523816794 | normal_sudoku_1164 | 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.
| None | 9 | 9 | . 3 . . . . 5 8 1
. 8 . 1 7 5 2 . .
. 1 5 . . . . 7 .
1 4 7 3 5 . . . .
. 9 2 . . . . 5 .
. . 8 . 6 . . . 7
. . 1 5 3 9 6 . 8
8 6 9 4 . 7 3 . .
. . 3 8 . 6 7 . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 736294581984175236215683479147358962692741853358962147471539628869427315523816794 #1 Easy (188)
Naked Single: r6c2=5
Naked Single: r5c4=7
Naked Single: r6c1=3
Full House: r5c1=6
Naked Single: r9c2=2
Full House: r7c2=7
Naked Single: r9c5=1
Full House: r8c5=2
Naked Single: r7c1=4
Full House:... | easy | null |
normal_sudoku_1019 | 4.....7.1....1..2........3.3..95..1.....823.6.2.6.......8.24...9..73.....51.9.... | 493268751867315924215479638386957412574182396129643587638524179942731865751896243 | puzzles1_unbiased | 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.
| None | 9 | 9 | 4 . . . . . 7 . 1
. . . . 1 . . 2 .
. . . . . . . 3 .
3 . . 9 5 . . 1 .
. . . . 8 2 3 . 6
. 2 . 6 . . . . .
. . 8 . 2 4 . . .
9 . . 7 3 . . . .
. 5 1 . 9 . . . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 493268751867315924215479638386957412574182396129643587638524179942731865751896243 #1 Medium (454)
Naked Single: r4c6=7
Naked Single: r9c4=8
Naked Single: r1c5=6
Naked Single: r6c5=4
Full House: r3c5=7
Naked Single: r9c6=6
Naked Single: r5c4=1
Full House: r6c6=3
Naked Single: r7c4=5
Full Ho... | medium | Basic 9x9 Sudoku 1019 |
normal_sudoku_570 | 1384.....694.85.3.275......712.5.4893897..62.5468..3...6...8..3.2..1...6.5.6.2.98 | 138467952694285731275193864712356489389741625546829317961578243823914576457632198 | normal_sudoku_570 | 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.
| None | 9 | 9 | 1 3 8 4 . . . . .
6 9 4 . 8 5 . 3 .
2 7 5 . . . . . .
7 1 2 . 5 . 4 8 9
3 8 9 7 . . 6 2 .
5 4 6 8 . . 3 . .
. 6 . . . 8 . . 3
. 2 . . 1 . . . 6
. 5 . 6 . 2 . 9 8 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 138467952694285731275193864712356489389741625546829317961578243823914576457632198 #1 Easy (156)
Naked Single: r5c5=4
Naked Single: r4c4=3
Full House: r4c6=6
Naked Single: r9c1=4
Naked Single: r5c6=1
Full House: r5c9=5
Naked Single: r7c1=9
Full House: r8c1=8
Naked Single: r6c6=9
Full House:... | easy | null |
normal_sudoku_3381 | 7.....98...4.7...2.8........5...682...21...3.4...2...7.....935...56..1...41.5..98 | 726534981314978562589261743157346829862197435493825617278419356935682174641753298 | puzzles4_forum_hardest_1905 | 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.
| None | 9 | 9 | 7 . . . . . 9 8 .
. . 4 . 7 . . . 2
. 8 . . . . . . .
. 5 . . . 6 8 2 .
. . 2 1 . . . 3 .
4 . . . 2 . . . 7
. . . . . 9 3 5 .
. . 5 6 . . 1 . .
. 4 1 . 5 . . 9 8 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 726534981314978562589261743157346829862197435493825617278419356935682174641753298 #1 Easy (332)
Naked Single: r8c9=4
Naked Single: r7c9=6
Naked Single: r8c8=7
Full House: r9c7=2
Hidden Single: r7c5=1
Hidden Single: r5c7=4
Hidden Single: r3c8=4
Hidden Single: r9c1=6
Hidden Single: r3c7=7
Hi... | easy | Basic 9x9 Sudoku 3381 |
normal_sudoku_465 | 397.2.1.....9.3..6..4..8.5....2..6...816.5..9..9.....1.........9...14....48...5.. | 397526148815943726624178953473291685281635479569487231136752894952814367748369512 | puzzles1_unbiased | 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.
| None | 9 | 9 | 3 9 7 . 2 . 1 . .
. . . 9 . 3 . . 6
. . 4 . . 8 . 5 .
. . . 2 . . 6 . .
. 8 1 6 . 5 . . 9
. . 9 . . . . . 1
. . . . . . . . .
9 . . . 1 4 . . .
. 4 8 . . . 5 . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 397526148815943726624178953473291685281635479569487231136752894952814367748369512 #1 Easy (260)
Naked Single: r1c6=6
Naked Single: r6c6=7
Naked Single: r3c5=7
Naked Single: r3c4=1
Hidden Single: r1c4=5
Full House: r2c5=4
Naked Single: r5c5=3
Naked Single: r6c5=8
Naked Single: r4c5=9
Naked ... | easy | Basic 9x9 Sudoku 465 |
normal_sudoku_2059 | 156.8.3274832..9157..13..646......7.8...1....391.2.658937.4..8.5....2.3.2..3.1... | 156489327483267915729135864642958173875613492391724658937546281514892736268371549 | normal_sudoku_2059 | 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.
| None | 9 | 9 | 1 5 6 . 8 . 3 2 7
4 8 3 2 . . 9 1 5
7 . . 1 3 . . 6 4
6 . . . . . . 7 .
8 . . . 1 . . . .
3 9 1 . 2 . 6 5 8
9 3 7 . 4 . . 8 .
5 . . . . 2 . 3 .
2 . . 3 . 1 . . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 156489327483267915729135864642958173875613492391724658937546281514892736268371549 #1 Easy (160)
Full House: r3c7=8
Naked Single: r3c2=2
Full House: r3c3=9
Full House: r3c6=5
Naked Single: r4c2=4
Naked Single: r7c6=6
Naked Single: r5c2=7
Naked Single: r9c2=6
Full House: r8c2=1
Naked Single:... | easy | null |
normal_sudoku_1295 | .....8...62.14....7......8..3..9....1......278.2.....6....8.9.....75.2..59....6.. | 913528764628147539745963182437296815169835427852471396271684953386759241594312678 | puzzles1_unbiased | 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.
| None | 9 | 9 | . . . . . 8 . . .
6 2 . 1 4 . . . .
7 . . . . . . 8 .
. 3 . . 9 . . . .
1 . . . . . . 2 7
8 . 2 . . . . . 6
. . . . 8 . 9 . .
. . . 7 5 . 2 . .
5 9 . . . . 6 . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 913528764628147539745963182437296815169835427852471396271684953386759241594312678 #1 Easy (412)
Naked Single: r4c1=4
Naked Single: r8c1=3
Naked Single: r1c1=9
Full House: r7c1=2
Hidden Single: r2c3=8
Hidden Single: r6c8=9
Hidden Single: r5c3=9
Hidden Single: r8c6=9
Hidden Single: r8c2=8
Hi... | easy | Basic 9x9 Sudoku 1295 |
normal_sudoku_1041 | .4.....8.7..5.8..2832.4....37...2...68...52.3.2.3.6.7...8...75...389712.217654938 | 145269387796538412832741695379482561681975243524316879968123754453897126217654938 | normal_sudoku_1041 | 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.
| None | 9 | 9 | . 4 . . . . . 8 .
7 . . 5 . 8 . . 2
8 3 2 . 4 . . . .
3 7 . . . 2 . . .
6 8 . . . 5 2 . 3
. 2 . 3 . 6 . 7 .
. . 8 . . . 7 5 .
. . 3 8 9 7 1 2 .
2 1 7 6 5 4 9 3 8 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 145269387796538412832741695379482561681975243524316879968123754453897126217654938 #1 Medium (384)
Hidden Single: r8c2=5
Naked Single: r8c1=4
Full House: r8c9=6
Full House: r7c9=4
Naked Single: r7c1=9
Full House: r7c2=6
Full House: r2c2=9
Locked Pair: 1,8 in r46c5 => r1257c5,r45c4<>1
Naked Sin... | medium | null |
normal_sudoku_2432 | ....36.2.2.....6...5..7..49.246.5.3...1.29......3...9.6.....4.....9.2.81.1.4..... | 489136725237594618156278349924685137361729854578341296695813472743962581812457963 | puzzles1_unbiased | 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.
| None | 9 | 9 | . . . . 3 6 . 2 .
2 . . . . . 6 . .
. 5 . . 7 . . 4 9
. 2 4 6 . 5 . 3 .
. . 1 . 2 9 . . .
. . . 3 . . . 9 .
6 . . . . . 4 . .
. . . 9 . 2 . 8 1
. 1 . 4 . . . . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 489136725237594618156278349924685137361729854578341296695813472743962581812457963 #1 Easy (336)
Hidden Single: r4c1=9
Hidden Single: r3c3=6
Hidden Single: r2c5=9
Hidden Single: r9c7=9
Hidden Single: r3c4=2
Hidden Single: r2c8=1
Hidden Single: r8c5=6
Hidden Single: r5c9=4
Hidden Single: r6c5=4... | easy | Basic 9x9 Sudoku 2432 |
normal_sudoku_6693 | ......4..51.34...78.4..2.9....9.81..9...3..2..5.2.7....45..........6.7.969.821.3. | 739186452512349687864572391426958173971634825358217946145793268283465719697821534 | puzzles4_forum_hardest_1905 | 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.
| None | 9 | 9 | . . . . . . 4 . .
5 1 . 3 4 . . . 7
8 . 4 . . 2 . 9 .
. . . 9 . 8 1 . .
9 . . . 3 . . 2 .
. 5 . 2 . 7 . . .
. 4 5 . . . . . .
. . . . 6 . 7 . 9
6 9 . 8 2 1 . 3 . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 739186452512349687864572391426958173971634825358217946145793268283465719697821534 #1 Easy (304)
Naked Single: r4c5=5
Naked Single: r6c5=1
Naked Single: r7c4=7
Naked Single: r9c3=7
Naked Single: r9c7=5
Full House: r9c9=4
Naked Single: r3c5=7
Naked Single: r7c5=9
Full House: r1c5=8
Naked Sin... | easy | Basic 9x9 Sudoku 6693 |
normal_sudoku_6925 | .9.6....1..4..567.....8..2.7.8.5..64.6.748.1...2.6378.8..5...97.2.4..13...38..... | 397624851284195673156387429738251964569748312412963785841536297625479138973812546 | normal_sudoku_6925 | 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.
| None | 9 | 9 | . 9 . 6 . . . . 1
. . 4 . . 5 6 7 .
. . . . 8 . . 2 .
7 . 8 . 5 . . 6 4
. 6 . 7 4 8 . 1 .
. . 2 . 6 3 7 8 .
8 . . 5 . . . 9 7
. 2 . 4 . . 1 3 .
. . 3 8 . . . . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 397624851284195673156387429738251964569748312412963785841536297625479138973812546 #1 Easy (328)
Hidden Single: r1c7=8
Hidden Single: r2c2=8
Hidden Single: r8c9=8
Hidden Single: r7c5=3
Hidden Single: r9c9=6
Hidden Single: r1c1=3
Hidden Single: r5c9=2
Hidden Single: r4c2=3
Naked Single: r4c7=9
... | easy | null |
normal_sudoku_1793 | 785931..6...68..7.94675...8..439..8..9.176542.7.248.......1.83.....2...4.17.6.... | 785931426123684975946752318264395781398176542571248693652419837839527164417863259 | normal_sudoku_1793 | 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.
| None | 9 | 9 | 7 8 5 9 3 1 . . 6
. . . 6 8 . . 7 .
9 4 6 7 5 . . . 8
. . 4 3 9 . . 8 .
. 9 . 1 7 6 5 4 2
. 7 . 2 4 8 . . .
. . . . 1 . 8 3 .
. . . . 2 . . . 4
. 1 7 . 6 . . . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 785931426123684975946752318264395781398176542571248693652419837839527164417863259 #1 Easy (168)
Full House: r4c6=5
Naked Single: r3c6=2
Full House: r2c6=4
Naked Single: r1c8=2
Full House: r1c7=4
Naked Single: r3c8=1
Full House: r3c7=3
Naked Single: r2c7=9
Full House: r2c9=5
Naked Single: r... | easy | null |
normal_sudoku_1227 | ...1.7........21.9143958627...86.91..1879..32...21..6...4.2..9.9...862.1....79.56 | 296147385587632149143958627372865914618794532459213768764521893935486271821379456 | normal_sudoku_1227 | 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.
| None | 9 | 9 | . . . 1 . 7 . . .
. . . . . 2 1 . 9
1 4 3 9 5 8 6 2 7
. . . 8 6 . 9 1 .
. 1 8 7 9 . . 3 2
. . . 2 1 . . 6 .
. . 4 . 2 . . 9 .
9 . . . 8 6 2 . 1
. . . . 7 9 . 5 6 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 296147385587632149143958627372865914618794532459213768764521893935486271821379456 #1 Easy (228)
Hidden Single: r2c4=6
Hidden Single: r5c1=6
Hidden Single: r6c7=7
Hidden Single: r7c6=1
Hidden Single: r9c3=1
Hidden Single: r8c8=7
Naked Single: r8c3=5
Naked Single: r2c3=7
Naked Single: r6c3=9
... | easy | null |
normal_sudoku_2188 | 4...3859.9.....32..63.....48..45.1..7....1......7..6.9...245.3..51.....2......76. | 472138596918564327563927814829456173746391258135782649687245931351679482294813765 | puzzles1_unbiased | 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.
| None | 9 | 9 | 4 . . . 3 8 5 9 .
9 . . . . . 3 2 .
. 6 3 . . . . . 4
8 . . 4 5 . 1 . .
7 . . . . 1 . . .
. . . 7 . . 6 . 9
. . . 2 4 5 . 3 .
. 5 1 . . . . . 2
. . . . . . 7 6 . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 472138596918564327563927814829456173746391258135782649687245931351679482294813765 #1 Easy (208)
Naked Single: r4c8=7
Naked Single: r7c1=6
Naked Single: r3c7=8
Naked Single: r4c9=3
Naked Single: r8c1=3
Naked Single: r3c8=1
Naked Single: r7c7=9
Naked Single: r9c1=2
Naked Single: r8c7=4
Full ... | easy | Basic 9x9 Sudoku 2188 |
normal_sudoku_1798 | ....3.....2.56..4.8.....9..1......2.34....7..5.27...34.....6..3.56379418.1.2...7. | 675934182921568347834127965197843526348652791562791834789416253256379418413285679 | puzzles5_forum_hardest_1905_11+ | 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.
| None | 9 | 9 | . . . . 3 . . . .
. 2 . 5 6 . . 4 .
8 . . . . . 9 . .
1 . . . . . . 2 .
3 4 . . . . 7 . .
5 . 2 7 . . . 3 4
. . . . . 6 . . 3
. 5 6 3 7 9 4 1 8
. 1 . 2 . . . 7 . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 675934182921568347834127965197843526348652791562791834789416253256379418413285679 #1 Easy (244)
Full House: r8c1=2
Hidden Single: r2c7=3
Hidden Single: r1c1=6
Hidden Single: r4c6=3
Hidden Single: r1c4=9
Naked Single: r1c2=7
Naked Single: r2c1=9
Naked Single: r3c2=3
Naked Single: r2c3=1
Nak... | easy | Basic 9x9 Sudoku 1798 |
normal_sudoku_219 | 9...8...3.4..7..6....2..9..6..9..15.7.4.16...19.....8...78....9..9...5..4....7.1. | 961485723342179865578263941623948157784516392195732486217854639839621574456397218 | puzzles4_forum_hardest_1905 | 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.
| None | 9 | 9 | 9 . . . 8 . . . 3
. 4 . . 7 . . 6 .
. . . 2 . . 9 . .
6 . . 9 . . 1 5 .
7 . 4 . 1 6 . . .
1 9 . . . . . 8 .
. . 7 8 . . . . 9
. . 9 . . . 5 . .
4 . . . . 7 . 1 . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 961485723342179865578263941623948157784516392195732486217854639839621574456397218 #1 Easy (376)
Naked Single: r5c9=2
Naked Single: r5c7=3
Naked Single: r5c4=5
Naked Single: r5c8=9
Full House: r5c2=8
Hidden Single: r2c6=9
Hidden Single: r4c6=8
Hidden Single: r9c5=9
Hidden Single: r4c9=7
Hid... | easy | Basic 9x9 Sudoku 219 |
normal_sudoku_2070 | ....7..4.4.........95...2863..9.7.24...4.2.....61..3.7.81.9....6...15.......8.53. | 812576943463829715795341286358967124179432658246158397581793462634215879927684531 | puzzles1_unbiased | 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.
| None | 9 | 9 | . . . . 7 . . 4 .
4 . . . . . . . .
. 9 5 . . . 2 8 6
3 . . 9 . 7 . 2 4
. . . 4 . 2 . . .
. . 6 1 . . 3 . 7
. 8 1 . 9 . . . .
6 . . . 1 5 . . .
. . . . 8 . 5 3 . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 812576943463829715795341286358967124179432658246158397581793462634215879927684531 #1 Easy (212)
Naked Single: r3c4=3
Naked Single: r4c3=8
Naked Single: r6c6=8
Naked Single: r6c5=5
Naked Single: r7c9=2
Naked Single: r3c5=4
Naked Single: r4c5=6
Full House: r5c5=3
Full House: r2c5=2
Naked Sin... | easy | Basic 9x9 Sudoku 2070 |
normal_sudoku_148 | 5..968...67.5..8.....1...65...7..1967964..538..3.9.274.8.......96.25..833.2...6.. | 521968347679534812438127965254783196796412538813695274185346729967251483342879651 | normal_sudoku_148 | 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.
| None | 9 | 9 | 5 . . 9 6 8 . . .
6 7 . 5 . . 8 . .
. . . 1 . . . 6 5
. . . 7 . . 1 9 6
7 9 6 4 . . 5 3 8
. . 3 . 9 . 2 7 4
. 8 . . . . . . .
9 6 . 2 5 . . 8 3
3 . 2 . . . 6 . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 521968347679534812438127965254783196796412538813695274185346729967251483342879651 #1 Easy (296)
Naked Single: r9c4=8
Naked Single: r6c4=6
Full House: r7c4=3
Hidden Single: r6c1=8
Hidden Single: r4c5=8
Hidden Single: r7c6=6
Hidden Single: r3c3=8
Hidden Single: r7c1=1
Hidden Single: r6c2=1
F... | easy | null |
normal_sudoku_1009 | ..49.25.1..3....8..6...34....7..42...4.2..1..2...5......8.1...9..68...5.3....67.. | 784962531523741986169583472897134265645278193231659847478315629916827354352496718 | puzzles4_forum_hardest_1905 | 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.
| None | 9 | 9 | . . 4 9 . 2 5 . 1
. . 3 . . . . 8 .
. 6 . . . 3 4 . .
. . 7 . . 4 2 . .
. 4 . 2 . . 1 . .
2 . . . 5 . . . .
. . 8 . 1 . . . 9
. . 6 8 . . . 5 .
3 . . . . 6 7 . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 784962531523741986169583472897134265645278193231659847478315629916827354352496718 #1 Easy (366)
Naked Single: r8c7=3
Naked Single: r7c7=6
Naked Single: r2c7=9
Full House: r6c7=8
Hidden Single: r1c8=3
Hidden Single: r9c8=1
Hidden Single: r9c9=8
Hidden Single: r7c4=3
Hidden Single: r5c6=8
Hi... | easy | Basic 9x9 Sudoku 1009 |
normal_sudoku_835 | ..8...2.6.9..5....5.......8..7....4..8...671.3.4..9..5.7....9..913..7.....54..... | 748931256692854371531672498157328649289546713364719825476185932913267584825493167 | puzzles1_unbiased | 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.
| None | 9 | 9 | . . 8 . . . 2 . 6
. 9 . . 5 . . . .
5 . . . . . . . 8
. . 7 . . . . 4 .
. 8 . . . 6 7 1 .
3 . 4 . . 9 . . 5
. 7 . . . . 9 . .
9 1 3 . . 7 . . .
. . 5 4 . . . . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 748931256692854371531672498157328649289546713364719825476185932913267584825493167 #1 Easy (314)
Naked Single: r5c1=2
Naked Single: r5c3=9
Naked Single: r6c2=6
Naked Single: r5c9=3
Naked Single: r4c1=1
Full House: r4c2=5
Naked Single: r6c7=8
Naked Single: r9c2=2
Naked Single: r5c4=5
Full Ho... | easy | Basic 9x9 Sudoku 835 |
normal_sudoku_1479 | .7...1.....3.4...712.....9....8...7.817.6..539.....28.24.3.76.57.54.6.3.....5.74. | 479521368583649127126783594652834971817962453934175286248397615795416832361258749 | normal_sudoku_1479 | 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.
| None | 9 | 9 | . 7 . . . 1 . . .
. . 3 . 4 . . . 7
1 2 . . . . . 9 .
. . . 8 . . . 7 .
8 1 7 . 6 . . 5 3
9 . . . . . 2 8 .
2 4 . 3 . 7 6 . 5
7 . 5 4 . 6 . 3 .
. . . . 5 . 7 4 . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 479521368583649127126783594652834971817962453934175286248397615795416832361258749 #1 Easy (312)
Naked Single: r7c8=1
Hidden Single: r4c3=2
Hidden Single: r2c7=1
Hidden Single: r9c3=1
Hidden Single: r8c5=1
Hidden Single: r6c4=1
Hidden Single: r4c9=1
Hidden Single: r8c9=2
Hidden Single: r1c5=2
... | easy | null |
normal_sudoku_4760 | 2.....1....82415.....56.283..93..7.....692.51.62.75.9897...68...237...1.4...2.... | 256839147738241569194567283519384726847692351362175498975416832623758914481923675 | normal_sudoku_4760 | 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.
| None | 9 | 9 | 2 . . . . . 1 . .
. . 8 2 4 1 5 . .
. . . 5 6 . 2 8 3
. . 9 3 . . 7 . .
. . . 6 9 2 . 5 1
. 6 2 . 7 5 . 9 8
9 7 . . . 6 8 . .
. 2 3 7 . . . 1 .
4 . . . 2 . . . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 256839147738241569194567283519384726847692351362175498975416832623758914481923675 #1 Medium (600)
Locked Pair: 3,4 in r56c7 => r4c89,r8c7<>4, r9c7<>3
Locked Candidates Type 1 (Pointing): 3 in b2 => r1c2<>3
Locked Candidates Type 1 (Pointing): 4 in b3 => r1c23<>4
Locked Candidates Type 1 (Pointing): 9 in b3 ... | medium | null |
normal_sudoku_2990 | ...58.....3..1.7.49..73.6..3.9..8..7....4.8.35..273916.6.8........497.6.4973..1.8 | 746589231835612794912734685329168547671945823584273916263851479158497362497326158 | normal_sudoku_2990 | 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.
| None | 9 | 9 | . . . 5 8 . . . .
. 3 . . 1 . 7 . 4
9 . . 7 3 . 6 . .
3 . 9 . . 8 . . 7
. . . . 4 . 8 . 3
5 . . 2 7 3 9 1 6
. 6 . 8 . . . . .
. . . 4 9 7 . 6 .
4 9 7 3 . . 1 . 8 | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 746589231835612794912734685329168547671945823584273916263851479158497362497326158 #1 Easy (200)
Hidden Single: r7c8=7
Hidden Single: r7c6=1
Naked Single: r7c1=2
Naked Single: r7c5=5
Naked Single: r4c5=6
Full House: r9c5=2
Full House: r9c6=6
Full House: r9c8=5
Naked Single: r7c3=3
Naked Sin... | easy | null |
normal_sudoku_1745 | ...5.........2.9....746..........1.5......37..5.6.9...1.3..2..8.......46.9....... | 314598627685327914927461853839274165246185379751639482163742598578913246492856731 | puzzles2_17_clue | 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.
| None | 9 | 9 | . . . 5 . . . . .
. . . . 2 . 9 . .
. . 7 4 6 . . . .
. . . . . . 1 . 5
. . . . . . 3 7 .
. 5 . 6 . 9 . . .
1 . 3 . . 2 . . 8
. . . . . . . 4 6
. 9 . . . . . . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_annotation | hard | 314598627685327914927461853839274165246185379751639482163742598578913246492856731 #1 Medium (754)
Hidden Single: r1c5=9
Hidden Single: r4c8=6
Hidden Single: r7c2=6
Hidden Single: r9c6=6
Hidden Single: r1c7=6
Hidden Single: r3c1=9
Hidden Single: r5c9=9
Hidden Single: r7c8=9
Naked Single: r7c4=... | medium | Basic 9x9 Sudoku 1745 |
normal_sudoku_1745 | ...59.6......2.9..9.746..........165......379.516.9482163742598...9...46.9...6... | 314598627685327914927461853839274165246185379751639482163742598578913246492856731 | normal_sudoku_1745 | 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.
| None | 9 | 9 | . . . 5 9 . 6 . .
. . . . 2 . 9 . .
9 . 7 4 6 . . . .
. . . . . . 1 6 5
. . . . . . 3 7 9
. 5 1 6 . 9 4 8 2
1 6 3 7 4 2 5 9 8
. . . 9 . . . 4 6
. 9 . . . 6 . . . | Complete the sudoku board based on the rules and visual elements. | sudoku | sudoku_benchmark | hard | 314598627685327914927461853839274165246185379751639482163742598578913246492856731 #1 Medium (590)
Hidden Single: r3c8=5
Hidden Single: r3c7=8
Hidden Single: r4c3=9
Hidden Single: r3c2=2
Hidden Single: r1c8=2
Locked Candidates Type 1 (Pointing): 7 in b2 => r4c6<>7
Locked Candidates Type 1 (Pointing)... | medium | null |
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