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