Split (7)

4x4 · 2k rows

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_400	....3..11.344.1.	2143342112344312	Basic 4x4 Sudoku 400	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 1 . 3 4 4 . 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_401	.2..34....4....1	1234341221434321	Basic 4x4 Sudoku 401	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 . . . . 4 . . . . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_402	.1.43..2....1243	2134341243211243	Basic 4x4 Sudoku 402	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 . . 2 . . . . 1 2 4 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_403	..4141.31.34....	2341412312343412	Basic 4x4 Sudoku 403	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 1 . 3 1 . 3 4 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_404	4.3.3..2...4.42.	4231314223141423	Basic 4x4 Sudoku 404	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 . . 2 . . . 4 . 4 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_405	3..114....32...4	3241142341322314	Basic 4x4 Sudoku 405	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 1 4 . . . . 3 2 . . . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_406	.231.1...32..4..	4231314213242413	Basic 4x4 Sudoku 406	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 . 1 . . . 3 2 . . 4 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_407	1...3.12.34..1.3	1234341223414123	Basic 4x4 Sudoku 407	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 2 . 3 4 . . 1 . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_408	.431312.4....2..	2431312443121243	Basic 4x4 Sudoku 408	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 1 2 . 4 . . . . 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_409	.413314.12......	2413314212344321	Basic 4x4 Sudoku 409	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 3 1 4 . 1 2 . . . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_410	.234.....143.32.	1234341221434321	Basic 4x4 Sudoku 410	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 . . . . . 1 4 3 . 3 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_411	3.1.1....3.....2	3214142323414132	Basic 4x4 Sudoku 411	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 . 1 . . . . 3 . . . . . 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_412	.2..1.24...2.4.3	4231132431422413	Basic 4x4 Sudoku 412	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 . . . 2 . 4 . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_413	23..4.2....43.12	2341412312343412	Basic 4x4 Sudoku 413	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 3 . 1 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_414	...212...1...43.	4312124331242431	Basic 4x4 Sudoku 414	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 . . . 1 . . . 4 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_415	.4.1..4.42...3.4	2431314242131324	Basic 4x4 Sudoku 415	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 . 4 2 . . . 3 . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_416	.3..4..33...1.34	2341412334121234	Basic 4x4 Sudoku 416	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 3 . . . 1 . 3 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_417	...22.3.34...243	4312213434211243	Basic 4x4 Sudoku 417	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 . . . 2 4 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_418	.3.4..1.....2...	1324421331422431	Basic 4x4 Sudoku 418	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	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_419	.1323....3.1...3	4132321423411423	Basic 4x4 Sudoku 419	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 . . . . 3 . 1 . . . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_420	23.1..3..2.3.1.4	2341143242133124	Basic 4x4 Sudoku 420	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 . . 2 . 3 . 1 . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_421	124..3...4.2....	1243432134122134	Basic 4x4 Sudoku 421	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 . . 3 . . . 4 . 2 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_422	...4.432.143...1	3214143221434321	Basic 4x4 Sudoku 422	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 3 2 . 1 4 3 . . . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_423	.....14...2.4.1.	2431314213244213	Basic 4x4 Sudoku 423	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 . 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_424	..1...4.1.2.2.3.	4213314213242431	Basic 4x4 Sudoku 424	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 . 2 . 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_425	.3..1.43..2424..	4312124331242431	Basic 4x4 Sudoku 425	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 . . 2 4 2 4 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_426	...2.24.3....1..	4312124334212134	Basic 4x4 Sudoku 426	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 4 . 3 . . . . 1 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_427	12...42..3..2.4.	1234342143122143	Basic 4x4 Sudoku 427	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 2 . . 3 . . 2 . 4 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_428	2.....124...1.4.	2134341243211243	Basic 4x4 Sudoku 428	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	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_429	...2..3.3...42..	1342243131244213	Basic 4x4 Sudoku 429	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 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_430	1.2.4.....3.....	1324421324313142	Basic 4x4 Sudoku 430	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 . . . . . 3 . . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_431	3.4........1.23.	3142241343211234	Basic 4x4 Sudoku 431	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	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_432	2.43..2....4.43.	2143432132141432	Basic 4x4 Sudoku 432	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 . . . . 4 . 4 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_433	.4...1.2...4..1.	2431314213244213	Basic 4x4 Sudoku 433	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 . . . 4 . . 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_434	4....12...422.31	4213312413422431	Basic 4x4 Sudoku 434	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 . . . 4 2 2 . 3 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_435	1.3...2....3.4..	1234432121433412	Basic 4x4 Sudoku 435	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 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_436	.4.....32.....1.	3421124321344312	Basic 4x4 Sudoku 436	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_437	..3.3.4..12.2.14	1432324141232314	Basic 4x4 Sudoku 437	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 . 4 . . 1 2 . 2 . 1 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_438	1.....134.3..142	1324241342313142	Basic 4x4 Sudoku 438	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 . . 1 4 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_439	.132.2.113...4..	4132324113242413	Basic 4x4 Sudoku 439	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 . 1 1 3 . . . 4 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_440	.2....12.43....4	1243431224313124	Basic 4x4 Sudoku 440	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 3 . . . . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_441	2431314....4....	2431314213244213	Basic 4x4 Sudoku 441	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 3 1 4 . . . . 4 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_442	...441..2.4..423	3214413223411423	Basic 4x4 Sudoku 442	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 1 . . 2 . 4 . . 4 2 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_443	......213....1.3	1234432134122143	Basic 4x4 Sudoku 443	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 . . . . 1 . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_444	3..1...2..14.423	3241413223141423	Basic 4x4 Sudoku 444	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 . . . 2 . . 1 4 . 4 2 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_445	1.3.3.....1..123	1432324123144123	Basic 4x4 Sudoku 445	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 . . . . . 1 . . 1 2 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_446	....31.4....1..3	2431312443121243	Basic 4x4 Sudoku 446	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	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_447	...4.1....3..2..	2314412314323241	Basic 4x4 Sudoku 447	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	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_448	...42...4......3	3124243143121243	Basic 4x4 Sudoku 448	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_449	4.2......143.4..	4321123421433412	Basic 4x4 Sudoku 449	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 4 3 . 4 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_450	1..2..4.....32..	1432234141233214	Basic 4x4 Sudoku 450	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 . . . . . 3 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_451	1.3.4.2.3..2.4.3	1234432131422413	Basic 4x4 Sudoku 451	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 . 3 . . 2 . 4 . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_452	.1....2....34...	2134342112434312	Basic 4x4 Sudoku 452	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 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_453	.....4.1..23....	1342243141233214	Basic 4x4 Sudoku 453	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_454	13...2.1.4..31.4	1342423124133124	Basic 4x4 Sudoku 454	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 . 1 . 4 . . 3 1 . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_455	.14.2.1.....1.2.	3142241342311324	Basic 4x4 Sudoku 455	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 . 1 . . . . . 1 . 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_456	..3.43.1.1.3.41.	1234432121433412	Basic 4x4 Sudoku 456	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 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_457	..32.....4..3..1	4132231414233241	Basic 4x4 Sudoku 457	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 . . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_458	....4.3.21......	1324423121433412	Basic 4x4 Sudoku 458	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_459	4.3.3..1132...1.	4132324113242413	Basic 4x4 Sudoku 459	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 . . 1 1 3 2 . . . 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_460	321.....13......	3214412313422431	Basic 4x4 Sudoku 460	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 . . . . . 1 3 . . . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_461	...343..3..2.23.	2143432134121234	Basic 4x4 Sudoku 461	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 . . 3 . . 2 . 2 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_462	.1..2..1.....34.	3124243142131342	Basic 4x4 Sudoku 462	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_463	..2....14...1..2	3124243142131342	Basic 4x4 Sudoku 463	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 . . . 1 . . 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_464	....423......12.	1342423124133124	Basic 4x4 Sudoku 464	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 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_465	..4.3.......2.1.	1243342141322314	Basic 4x4 Sudoku 465	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_466	.2.4.4.1....4312	1234342121434312	Basic 4x4 Sudoku 466	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 . 1 . . . . 4 3 1 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_467	.....241....4.1.	1423324121344312	Basic 4x4 Sudoku 467	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_468	3.1..2..4.2.21.3	3412123443212143	Basic 4x4 Sudoku 468	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 . . 2 . . 4 . 2 . 2 1 . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_469	34....3.4.13..42	3421213442131342	Basic 4x4 Sudoku 469	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 . 4 . 1 3 . . 4 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_470	43..21...4.1..43	4312213434211243	Basic 4x4 Sudoku 470	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 . 1 . . 4 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_471	.431.3...2.....3	2431134232144123	Basic 4x4 Sudoku 471	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 . . . . . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_472	23...43..1...214	2341143241233214	Basic 4x4 Sudoku 472	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 1 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_473	....24...12....3	1342243131244213	Basic 4x4 Sudoku 473	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	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_474	...3..1..324..3.	2143341213244231	Basic 4x4 Sudoku 474	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 . . 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_475	31...2.....3..2.	3142423124131324	Basic 4x4 Sudoku 475	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 . . . 2 . . . . . 3 . . 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_476	3..121...213....	3421213442131342	Basic 4x4 Sudoku 476	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 2 1 . . . 2 1 3 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_477	2.14....1.23....	2314413214233241	Basic 4x4 Sudoku 477	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 . . . . 1 . 2 3 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_478	....1..3.134.3.1	3412124321344321	Basic 4x4 Sudoku 478	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 3 4 . 3 . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_479	4.2.3......2..4.	4123321414322341	Basic 4x4 Sudoku 479	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 . . . . . . 2 . . 4 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_480	.....3242....4.2	4231132421433412	Basic 4x4 Sudoku 480	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 . . . . 4 . 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_481	..1.132..4...1..	4213132424313142	Basic 4x4 Sudoku 481	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 2 . . 4 . . . 1 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_482	.4..1.4....1..3.	3412124343212134	Basic 4x4 Sudoku 482	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 . . . . 1 . . 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_483	.2....4.2.1.1.24	4231314224131324	Basic 4x4 Sudoku 483	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 . 2 . 1 . 1 . 2 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_484	.431132.3.....1.	2431132431424213	Basic 4x4 Sudoku 484	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 1 3 2 . 3 . . . . . 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_485	2...142...4.413.	2314142332414132	Basic 4x4 Sudoku 485	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 2 . . . 4 . 4 1 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_486	..1221..3..11.3.	4312214334211234	Basic 4x4 Sudoku 486	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 2 1 . . 3 . . 1 1 . 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_487	1...2..3...13..4	1342241342313124	Basic 4x4 Sudoku 487	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 . . . 1 3 . . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_488	......13.34..4.1	3124421313422431	Basic 4x4 Sudoku 488	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 4 . . 4 . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_489	.23...1.....234.	1234341241232341	Basic 4x4 Sudoku 489	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 . . . . . 2 3 4 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_490	4..1.2.4.14....3	4321123431422413	Basic 4x4 Sudoku 490	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 . 4 . 1 4 . . . . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_491	.32....3.2.434..	4321214312343412	Basic 4x4 Sudoku 491	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 . 2 . 4 3 4 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_492	..2.....3...2..4	4321124334122134	Basic 4x4 Sudoku 492	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 . . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_493	1.4.34..431..1..	1243342143122134	Basic 4x4 Sudoku 493	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 . . 4 3 1 . . 1 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_494	41..3..12.131...	4132324124131324	Basic 4x4 Sudoku 494	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 . . 1 2 . 1 3 1 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_495	..1....2423..3..	2413314242311324	Basic 4x4 Sudoku 495	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 2 3 . . 3 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_496	2.3....4....1..2	2431312442131342	Basic 4x4 Sudoku 496	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 . . . . 1 . . 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_497	4.....4113.4...3	4132324113242413	Basic 4x4 Sudoku 497	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 1 1 3 . 4 . . . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_498	....3....4.3.3.1	4132321414232341	Basic 4x4 Sudoku 498	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 . 3 . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_499	23.1.1....2.....	2341413214233214	Basic 4x4 Sudoku 499	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 . 1 . . . . 2 . . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.

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