task_name string | initial_board string | solution string | puzzle_id string | title string | rules string | initial_observation string | rows int64 | cols int64 | visual_elements string | description string |
|---|---|---|---|---|---|---|---|---|---|---|
4x4_sudoku_600 | .4.22...4...1.43 | 3412213443211243 | Basic 4x4 Sudoku 600 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . 4 . 2
2 . . .
4 . . .
1 . 4 3 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_601 | .....41..2....3. | 1324241332414132 | Basic 4x4 Sudoku 601 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . . .
. 4 1 .
. 2 . .
. . 3 . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_602 | .2..4...1.2323.1 | 3214413214232341 | Basic 4x4 Sudoku 602 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . 2 . .
4 . . .
1 . 2 3
2 3 . 1 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_603 | .....321314..4.3 | 1234432131422413 | Basic 4x4 Sudoku 603 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . . .
. 3 2 1
3 1 4 .
. 4 . 3 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_604 | ..32.24...1..1.. | 1432324123144123 | Basic 4x4 Sudoku 604 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . 3 2
. 2 4 .
. . 1 .
. 1 . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_605 | 1...2.4.4.1.3... | 1432234142133124 | Basic 4x4 Sudoku 605 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 1 . . .
2 . 4 .
4 . 1 .
3 . . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_606 | 4..1..3.....21.. | 4321123434122143 | Basic 4x4 Sudoku 606 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 4 . . 1
. . 3 .
. . . .
2 1 . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_607 | 34.1.2.4...2...3 | 3421123443122143 | Basic 4x4 Sudoku 607 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 3 4 . 1
. 2 . 4
. . . 2
. . . 3 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_608 | 2..1.1.2.324.... | 2431314213244213 | Basic 4x4 Sudoku 608 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 2 . . 1
. 1 . 2
. 3 2 4
. . . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_609 | ...33...2......1 | 1243341221344321 | Basic 4x4 Sudoku 609 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . . 3
3 . . .
2 . . .
. . . 1 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_610 | .32..13..24..4.. | 4321213412433412 | Basic 4x4 Sudoku 610 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . 3 2 .
. 1 3 .
. 2 4 .
. 4 . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_611 | 1.....1.2..33..1 | 1234431221433421 | Basic 4x4 Sudoku 611 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 1 . . .
. . 1 .
2 . . 3
3 . . 1 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_612 | ..3.4..22.43.... | 1234431221433421 | Basic 4x4 Sudoku 612 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . 3 .
4 . . 2
2 . 4 3
. . . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_613 | ....2.....41.43. | 4123231432411432 | Basic 4x4 Sudoku 613 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . . .
2 . . .
. . 4 1
. 4 3 . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_614 | ....3..14.1313.. | 2134342142131342 | Basic 4x4 Sudoku 614 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . . .
3 . . 1
4 . 1 3
1 3 . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_615 | ..1..14....43.2. | 4312214312343421 | Basic 4x4 Sudoku 615 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . 1 .
. 1 4 .
. . . 4
3 . 2 . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_616 | 13..421...2....4 | 1342421334212134 | Basic 4x4 Sudoku 616 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 1 3 . .
4 2 1 .
. . 2 .
. . . 4 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_617 | 4....14..3141... | 4231314223141423 | Basic 4x4 Sudoku 617 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 4 . . .
. 1 4 .
. 3 1 4
1 . . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_618 | 3.2...13....2.3. | 3124421313422431 | Basic 4x4 Sudoku 618 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 3 . 2 .
. . 1 3
. . . .
2 . 3 . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_619 | 2..4..1..4..1... | 2134431234211243 | Basic 4x4 Sudoku 619 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 2 . . 4
. . 1 .
. 4 . .
1 . . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_620 | ..2.....2.3..412 | 4321124321343412 | Basic 4x4 Sudoku 620 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . 2 .
. . . .
2 . 3 .
. 4 1 2 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_621 | .14.2..........3 | 3142243113244213 | Basic 4x4 Sudoku 621 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . 1 4 .
2 . . .
. . . .
. . . 3 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_622 | ..1.12..2.4334.. | 4312123421433421 | Basic 4x4 Sudoku 622 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . 1 .
1 2 . .
2 . 4 3
3 4 . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_623 | 423.....1..424.. | 4231314213242413 | Basic 4x4 Sudoku 623 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 4 2 3 .
. . . .
1 . . 4
2 4 . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_624 | .43.....2..4.... | 1432324123144123 | Basic 4x4 Sudoku 624 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . 4 3 .
. . . .
2 . . 4
. . . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_625 | 2....32..1.24..1 | 2413132431424231 | Basic 4x4 Sudoku 625 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 2 . . .
. 3 2 .
. 1 . 2
4 . . 1 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_626 | ...4.42.1......2 | 2134342112434312 | Basic 4x4 Sudoku 626 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . . 4
. 4 2 .
1 . . .
. . . 2 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_627 | ..2......43.2.14 | 4123324114322314 | Basic 4x4 Sudoku 627 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . 2 .
. . . .
. 4 3 .
2 . 1 4 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_628 | ...323..1..232.4 | 4123234114323214 | Basic 4x4 Sudoku 628 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . . 3
2 3 . .
1 . . 2
3 2 . 4 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_629 | ..13....1..4.3.. | 2413314212344321 | Basic 4x4 Sudoku 629 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . 1 3
. . . .
1 . . 4
. 3 . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_630 | .3.4.1.234...2.. | 2314413234211243 | Basic 4x4 Sudoku 630 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . 3 . 4
. 1 . 2
3 4 . .
. 2 . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_631 | ...43...2......3 | 1234341223414123 | Basic 4x4 Sudoku 631 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . . 4
3 . . .
2 . . .
. . . 3 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_632 | 1.....3.3.2..4.. | 1342423131242413 | Basic 4x4 Sudoku 632 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 1 . . .
. . 3 .
3 . 2 .
. 4 . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_633 | 32...43.2314.... | 3241143223144123 | Basic 4x4 Sudoku 633 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 3 2 . .
. 4 3 .
2 3 1 4
. . . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_634 | ....421.2.3.134. | 3124421324311342 | Basic 4x4 Sudoku 634 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . . .
4 2 1 .
2 . 3 .
1 3 4 . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_635 | .24.4...2...1432 | 3241412323141432 | Basic 4x4 Sudoku 635 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . 2 4 .
4 . . .
2 . . .
1 4 3 2 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_636 | 1.4.2...4..331.4 | 1342243142133124 | Basic 4x4 Sudoku 636 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 1 . 4 .
2 . . .
4 . . 3
3 1 . 4 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_637 | 4..1.3..2.....4. | 4231132424133142 | Basic 4x4 Sudoku 637 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 4 . . 1
. 3 . .
2 . . .
. . 4 . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_638 | 1.233.4.4.32.... | 1423324141322314 | Basic 4x4 Sudoku 638 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 1 . 2 3
3 . 4 .
4 . 3 2
. . . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_639 | .2.....4.4.33... | 4231132424133142 | Basic 4x4 Sudoku 639 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . 2 . .
. . . 4
. 4 . 3
3 . . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_640 | 4..3.....2.1.... | 4123231432411432 | Basic 4x4 Sudoku 640 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 4 . . 3
. . . .
. 2 . 1
. . . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_641 | .3...4.14.....4. | 1324243142133142 | Basic 4x4 Sudoku 641 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . 3 . .
. 4 . 1
4 . . .
. . 4 . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_642 | 413.2...1.2..21. | 4132234114233214 | Basic 4x4 Sudoku 642 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 4 1 3 .
2 . . .
1 . 2 .
. 2 1 . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_643 | .3...1431..4...2 | 4321214312343412 | Basic 4x4 Sudoku 643 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . 3 . .
. 1 4 3
1 . . 4
. . . 2 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_644 | ....4..21.2..4.. | 3241413213242413 | Basic 4x4 Sudoku 644 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . . .
4 . . 2
1 . 2 .
. 4 . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_645 | .1323.4...2...14 | 4132324114232314 | Basic 4x4 Sudoku 645 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . 1 3 2
3 . 4 .
. . 2 .
. . 1 4 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_646 | ..2.2..13....23. | 4123234134121234 | Basic 4x4 Sudoku 646 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . 2 .
2 . . 1
3 . . .
. 2 3 . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_647 | 12.3....43.12.3. | 1243341243212134 | Basic 4x4 Sudoku 647 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 1 2 . 3
. . . .
4 3 . 1
2 . 3 . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_648 | ....14..31244..3 | 2341143231244213 | Basic 4x4 Sudoku 648 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . . .
1 4 . .
3 1 2 4
4 . . 3 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_649 | 41.2....24...32. | 4132324124131324 | Basic 4x4 Sudoku 649 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 4 1 . 2
. . . .
2 4 . .
. 3 2 . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_650 | .....3.21..3.2.. | 2134431214233241 | Basic 4x4 Sudoku 650 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . . .
. 3 . 2
1 . . 3
. 2 . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_651 | ..4..312....21.4 | 1243431234212134 | Basic 4x4 Sudoku 651 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . 4 .
. 3 1 2
. . . .
2 1 . 4 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_652 | .1.....41.....31 | 4123321413422431 | Basic 4x4 Sudoku 652 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . 1 . .
. . . 4
1 . . .
. . 3 1 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_653 | ....4..1..1..3.2 | 3124423124131342 | Basic 4x4 Sudoku 653 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . . .
4 . . 1
. . 1 .
. 3 . 2 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_654 | 12...41.2..4.3.. | 1243341221344321 | Basic 4x4 Sudoku 654 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 1 2 . .
. 4 1 .
2 . . 4
. 3 . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_655 | .3.4..2..4...... | 2314412314323241 | Basic 4x4 Sudoku 655 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . 3 . 4
. . 2 .
. 4 . .
. . . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_656 | 3.4..2.32...1... | 3142421324311324 | Basic 4x4 Sudoku 656 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 3 . 4 .
. 2 . 3
2 . . .
1 . . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_657 | ...4..3..1.3..2. | 3214143221434321 | Basic 4x4 Sudoku 657 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . . 4
. . 3 .
. 1 . 3
. . 2 . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_658 | ....1..2.13..4.. | 4213134221343421 | Basic 4x4 Sudoku 658 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . . .
1 . . 2
. 1 3 .
. 4 . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_659 | .3.....1..4.3... | 1324423121433412 | Basic 4x4 Sudoku 659 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . 3 . .
. . . 1
. . 4 .
3 . . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_660 | ..24...1.4..2.4. | 1324423134122143 | Basic 4x4 Sudoku 660 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . 2 4
. . . 1
. 4 . .
2 . 4 . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_661 | 213......3.21... | 2134342143121243 | Basic 4x4 Sudoku 661 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 2 1 3 .
. . . .
. 3 . 2
1 . . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_662 | 2..34..2.4.1.2.4 | 2143431234211234 | Basic 4x4 Sudoku 662 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 2 . . 3
4 . . 2
. 4 . 1
. 2 . 4 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_663 | .3...24.213..4.2 | 4321124321343412 | Basic 4x4 Sudoku 663 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . 3 . .
. 2 4 .
2 1 3 .
. 4 . 2 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_664 | .2....3....14... | 3214143223414123 | Basic 4x4 Sudoku 664 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . 2 . .
. . 3 .
. . . 1
4 . . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_665 | ...2.23....3..4. | 3412123441232341 | Basic 4x4 Sudoku 665 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . . 2
. 2 3 .
. . . 3
. . 4 . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_666 | 3.2.1..4....43.. | 3421123421434312 | Basic 4x4 Sudoku 666 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 3 . 2 .
1 . . 4
. . . .
4 3 . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_667 | ....2.1..24....1 | 4132231412433421 | Basic 4x4 Sudoku 667 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . . .
2 . 1 .
. 2 4 .
. . . 1 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_668 | .4...31.42..31.. | 1423231442313142 | Basic 4x4 Sudoku 668 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . 4 . .
. 3 1 .
4 2 . .
3 1 . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_669 | .13.2....2.4..23 | 4132234132141423 | Basic 4x4 Sudoku 669 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . 1 3 .
2 . . .
. 2 . 4
. . 2 3 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_670 | ..322.14.2.1.1.. | 1432231432414123 | Basic 4x4 Sudoku 670 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . 3 2
2 . 1 4
. 2 . 1
. 1 . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_671 | ...23.....1.41.. | 1432324123144123 | Basic 4x4 Sudoku 671 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . . 2
3 . . .
. . 1 .
4 1 . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_672 | .3..2..1.2..4..3 | 1342243132144123 | Basic 4x4 Sudoku 672 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . 3 . .
2 . . 1
. 2 . .
4 . . 3 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_673 | 2.3..4...31..2.. | 2134342143121243 | Basic 4x4 Sudoku 673 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 2 . 3 .
. 4 . .
. 3 1 .
. 2 . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_674 | .4.....231..4..1 | 2413134231244231 | Basic 4x4 Sudoku 674 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . 4 . .
. . . 2
3 1 . .
4 . . 1 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_675 | ....1.4.2.34432. | 3412124321344321 | Basic 4x4 Sudoku 675 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . . .
1 . 4 .
2 . 3 4
4 3 2 . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_676 | .4.......2.4..3. | 1423234132144132 | Basic 4x4 Sudoku 676 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . 4 . .
. . . .
. 2 . 4
. . 3 . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_677 | 23.......43....4 | 2341412314323214 | Basic 4x4 Sudoku 677 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 2 3 . .
. . . .
. 4 3 .
. . . 4 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_678 | 21.43..2.2....2. | 2134341212434321 | Basic 4x4 Sudoku 678 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 2 1 . 4
3 . . 2
. 2 . .
. . 2 . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_679 | ....2.43.4.1...4 | 4312214334211234 | Basic 4x4 Sudoku 679 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . . .
2 . 4 3
. 4 . 1
. . . 4 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_680 | 34.2.14313...... | 3412214313244231 | Basic 4x4 Sudoku 680 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 3 4 . 2
. 1 4 3
1 3 . .
. . . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_681 | ...1124...3.4... | 3421124321344312 | Basic 4x4 Sudoku 681 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . . 1
1 2 4 .
. . 3 .
4 . . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_682 | .14.34.2.32....4 | 2143341243211234 | Basic 4x4 Sudoku 682 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . 1 4 .
3 4 . 2
. 3 2 .
. . . 4 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_683 | 3.2..14.....4... | 3421214312344312 | Basic 4x4 Sudoku 683 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 3 . 2 .
. 1 4 .
. . . .
4 . . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_684 | 31........32.... | 3124421314322341 | Basic 4x4 Sudoku 684 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 3 1 . .
. . . .
. . 3 2
. . . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_685 | ..13....2.3434.1 | 4213134221343421 | Basic 4x4 Sudoku 685 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . 1 3
. . . .
2 . 3 4
3 4 . 1 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_686 | 12...41.4.21..3. | 1243341243212134 | Basic 4x4 Sudoku 686 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 1 2 . .
. 4 1 .
4 . 2 1
. . 3 . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_687 | 4..3..1.2.4...32 | 4123321423411432 | Basic 4x4 Sudoku 687 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 4 . . 3
. . 1 .
2 . 4 .
. . 3 2 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_688 | 241.....3.24.23. | 2413134231244231 | Basic 4x4 Sudoku 688 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 2 4 1 .
. . . .
3 . 2 4
. 2 3 . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_689 | 4....3.4.14....3 | 4231132431422413 | Basic 4x4 Sudoku 689 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 4 . . .
. 3 . 4
. 1 4 .
. . . 3 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_690 | ..4..2312..33.2. | 1342423124133124 | Basic 4x4 Sudoku 690 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . 4 .
. 2 3 1
2 . . 3
3 . 2 . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_691 | ..1..1.3...4.3.. | 3412214312344321 | Basic 4x4 Sudoku 691 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . 1 .
. 1 . 3
. . . 4
. 3 . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_692 | .2.334...132...4 | 1243342141322314 | Basic 4x4 Sudoku 692 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . 2 . 3
3 4 . .
. 1 3 2
. . . 4 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_693 | .3..4.31.....1.3 | 1324423134122143 | Basic 4x4 Sudoku 693 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . 3 . .
4 . 3 1
. . . .
. 1 . 3 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_694 | ..43....1.2..... | 2143341213244231 | Basic 4x4 Sudoku 694 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . 4 3
. . . .
1 . 2 .
. . . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_695 | 2431....4...124. | 2431312443121243 | Basic 4x4 Sudoku 695 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 2 4 3 1
. . . .
4 . . .
1 2 4 . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_696 | ..2.3..1.3.44... | 1423324123144132 | Basic 4x4 Sudoku 696 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . 2 .
3 . . 1
. 3 . 4
4 . . . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_697 | 1..4..1.....24.1 | 1324421331422431 | Basic 4x4 Sudoku 697 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 1 . . 4
. . 1 .
. . . .
2 4 . 1 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_698 | 4.3..3........41 | 4132231414233241 | Basic 4x4 Sudoku 698 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| 4 . 3 .
. 3 . .
. . . .
. . 4 1 | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
4x4_sudoku_699 | .....1....3.3.2. | 4312214312343421 | Basic 4x4 Sudoku 699 | Easy Sudoku | Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.
| . . . .
. 1 . .
. . 3 .
3 . 2 . | 4 | 4 | None | Complete the sudoku board based on the rules and visual elements. |
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