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_500	.23....124.3....	1234432124133142	Basic 4x4 Sudoku 500	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 4 . 3 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_501	...31......141.2	2413132432414132	Basic 4x4 Sudoku 501	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 1 . 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_502	..41.13..2.4.42.	2341413232141423	Basic 4x4 Sudoku 502	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 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_503	..4.43.13.1..4..	2143432132141432	Basic 4x4 Sudoku 503	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 . 1 3 . 1 . . 4 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_504	.4..1..3......12	3421124321344312	Basic 4x4 Sudoku 504	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	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_505	.3......3..2.21.	1324243131424213	Basic 4x4 Sudoku 505	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 . 2 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_506	.32...4..4.2..1.	4321214314323214	Basic 4x4 Sudoku 506	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 . . 4 . 2 . . 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_507	...2.14..4..1234	4312214334211234	Basic 4x4 Sudoku 507	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 . . 4 . . 1 2 3 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_508	...3..24.34.4...	2413312413424231	Basic 4x4 Sudoku 508	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 4 . 4 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_509	1..4..2.3....1..	1234432134122143	Basic 4x4 Sudoku 509	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 . . . . 1 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_510	3.2...4...144...	3421124323144132	Basic 4x4 Sudoku 510	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 . . . 1 4 4 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_511	.32.2...1..3....	4321213412433412	Basic 4x4 Sudoku 511	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 . . 3 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_512	.1.24.13..3.1..4	3142421324311324	Basic 4x4 Sudoku 512	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 3 . . 3 . 1 . . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_513	3.1...3....1.4..	3214413223411423	Basic 4x4 Sudoku 513	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 . . . . 1 . 4 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_514	...1.3.....3.2..	2431134241233214	Basic 4x4 Sudoku 514	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.
4x4_sudoku_515	4..3...224...324	4213314224311324	Basic 4x4 Sudoku 515	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 2 4 . . . 3 2 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_516	1.424.....2..1..	1342421334212134	Basic 4x4 Sudoku 516	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 . . . . . 2 . . 1 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_517	.4.3...1...23...	1423234141323214	Basic 4x4 Sudoku 517	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 3 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_518	...4..2.....4..1	2314142331424231	Basic 4x4 Sudoku 518	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 . . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_519	.1...4..1.4..3.1	2134341212434321	Basic 4x4 Sudoku 519	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 . 4 . . 3 . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_520	4..2..4.3.2.1...	4312214334211234	Basic 4x4 Sudoku 520	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 . 2 . 1 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_521	....3..1.34.....	2134342113424213	Basic 4x4 Sudoku 521	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 4 . . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_522	2.3.4...32.11..3	2134431232411423	Basic 4x4 Sudoku 522	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 2 . 1 1 . . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_523	1.2....1.314....	1423324123144132	Basic 4x4 Sudoku 523	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 1 4 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_524	.12.2....4..12..	4123234134121234	Basic 4x4 Sudoku 524	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 . . . . 4 . . 1 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_525	4.3..1.4....2...	4231312413422413	Basic 4x4 Sudoku 525	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 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_526	..323...1...24.3	4132324113242413	Basic 4x4 Sudoku 526	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 4 . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_527	..1..2...1.3.421	4312123421433421	Basic 4x4 Sudoku 527	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 2 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_528	2.4114..312.....	2341143231244213	Basic 4x4 Sudoku 528	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 1 4 . . 3 1 2 . . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_529	3.1....343...2..	3412214343211234	Basic 4x4 Sudoku 529	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 4 3 . . . 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_530	.43.........2.41	1432321441232341	Basic 4x4 Sudoku 530	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 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_531	.3..4....2....1.	2341412312343412	Basic 4x4 Sudoku 531	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	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_532	...4..3..42..241	2314413214233241	Basic 4x4 Sudoku 532	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 2 . . 2 4 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_533	..4..4.....232..	2341142341323214	Basic 4x4 Sudoku 533	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 3 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_534	.2..4..134.22.3.	1243432134122134	Basic 4x4 Sudoku 534	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 4 . 2 2 . 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_535	41.........21.3.	4123234134121234	Basic 4x4 Sudoku 535	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 1 . 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_536	...3.14.42......	2413314242311324	Basic 4x4 Sudoku 536	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 . 4 2 . . . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_537	1...4.2...4....2	1234432121433412	Basic 4x4 Sudoku 537	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 . . . . 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_538	3....1.312...32.	3412214312344321	Basic 4x4 Sudoku 538	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 1 2 . . . 3 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_539	....32...43....4	4123324114322314	Basic 4x4 Sudoku 539	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 . . . . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_540	41..23.4.4.3....	4132231414233241	Basic 4x4 Sudoku 540	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 . 3 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_541	..41.....12.2...	3241143241232314	Basic 4x4 Sudoku 541	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 2 . 2 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_542	432...3.34.2.2..	4321213434121243	Basic 4x4 Sudoku 542	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 . 3 4 . 2 . 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_543	.....2.1..4....2	1324423121433412	Basic 4x4 Sudoku 543	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	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_544	...1..3442.....2	3421213442131342	Basic 4x4 Sudoku 544	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 4 2 . . . . . 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_545	4.1.1..3......34	4312124334212134	Basic 4x4 Sudoku 545	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 . . . . . . 3 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_546	....41..3..1..2.	2314413232411423	Basic 4x4 Sudoku 546	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 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_547	.23..12.2....3..	4231312424131342	Basic 4x4 Sudoku 547	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 . 2 . . . . 3 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_548	.43.3..4.14...2.	1432321421434321	Basic 4x4 Sudoku 548	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 . . . 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_549	...11342....42..	2431134231244213	Basic 4x4 Sudoku 549	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 2 . . . . 4 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_550	.12.......4..3..	3124243112434312	Basic 4x4 Sudoku 550	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_551	.3.44....4.3.2..	2314413214233241	Basic 4x4 Sudoku 551	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 4 . . . . 4 . 3 . 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_552	..34..1.3...2...	1234431234212143	Basic 4x4 Sudoku 552	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 . 3 . . . 2 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_553	..1..1..1.3..2..	2314412314323241	Basic 4x4 Sudoku 553	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 . . 1 . 3 . . 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_554	2......1.4323..4	2143432114323214	Basic 4x4 Sudoku 554	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 3 . . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_555	2.........1.3.4.	2431132442133142	Basic 4x4 Sudoku 555	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 . 4 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_556	..1....342.1132.	3412214342311324	Basic 4x4 Sudoku 556	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 1 3 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_557	...3.1.....2.4..	4213312413422431	Basic 4x4 Sudoku 557	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 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_558	.....1.4.3424.31	2413312413424231	Basic 4x4 Sudoku 558	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 4 . 3 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_559	.....1....4.2..3	4231312413422413	Basic 4x4 Sudoku 559	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_560	.3.2123...21..4.	4312123434212143	Basic 4x4 Sudoku 560	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 3 . . . 2 1 . . 4 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_561	4..22..3......2.	4312214312343421	Basic 4x4 Sudoku 561	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 . . 3 . . . . . . 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_562	...141.3.23.3...	2341412312343412	Basic 4x4 Sudoku 562	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 . 2 3 . 3 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_563	...44.3.1...34..	2314413212433421	Basic 4x4 Sudoku 563	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 . 1 . . . 3 4 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_564	.3..4.....3.32.1	2314412314323241	Basic 4x4 Sudoku 564	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 . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_565	342....4.21.13..	3421213442131342	Basic 4x4 Sudoku 565	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 . 2 1 . 1 3 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_566	2...43..32..1.23	2134431232411423	Basic 4x4 Sudoku 566	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 . . 3 2 . . 1 . 2 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_567	14......4.....3.	1423324143122134	Basic 4x4 Sudoku 567	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 . . . . . . 4 . . . . . 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_568	.43....213......	2431314213244213	Basic 4x4 Sudoku 568	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 3 . . . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_569	...4.3.2.....4.3	2134431232411423	Basic 4x4 Sudoku 569	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 . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_570	......2..4...2.3	2134432134121243	Basic 4x4 Sudoku 570	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 . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_571	...2..1....4.3..	3142241312344321	Basic 4x4 Sudoku 571	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 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_572	.......132.41.2.	4132234132141423	Basic 4x4 Sudoku 572	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 . 4 1 . 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_573	2...3142..2.4.3.	2413314213244231	Basic 4x4 Sudoku 573	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 2 . . 2 . 4 . 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_574	.41.314.1.2...3.	2413314213244231	Basic 4x4 Sudoku 574	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 4 . 1 . 2 . . . 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_575	4.1......42121.3	4312123434212143	Basic 4x4 Sudoku 575	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 2 1 2 1 . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_576	32.....32.4..1..	3214142323414132	Basic 4x4 Sudoku 576	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 . . 1 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_577	.2....1..3.1..3.	1243341243212134	Basic 4x4 Sudoku 577	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_578	...11.2...3...12	3241142321344312	Basic 4x4 Sudoku 578	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 . . . 1 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_579	.....21.213.3...	1342421321343421	Basic 4x4 Sudoku 579	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 3 . 3 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_580	1..232.1...4....	1432324123144123	Basic 4x4 Sudoku 580	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 2 . 1 . . . 4 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_581	..2.2...31.2.2.3	1324243131424213	Basic 4x4 Sudoku 581	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 1 . 2 . 2 . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_582	1..4.....24.....	1324241332414132	Basic 4x4 Sudoku 582	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 . . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_583	.14..4...3.2....	2143342143121234	Basic 4x4 Sudoku 583	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 . . 4 . . . 3 . 2 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_584	..24.......2.3..	3124421314322341	Basic 4x4 Sudoku 584	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 . 3 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_585	4...1..3...1..3.	4312124334212134	Basic 4x4 Sudoku 585	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 . . 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_586	..1...32.2.33...	2314413212433421	Basic 4x4 Sudoku 586	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 . 3 3 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_587	..344....421.2..	2134431234211243	Basic 4x4 Sudoku 587	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 4 . . . . 4 2 1 . 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_588	..4..31.2....4..	1243431221343421	Basic 4x4 Sudoku 588	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	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_589	..2......3...4.3	3124423113422413	Basic 4x4 Sudoku 589	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	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_590	.42..1.3..3.4..2	3421214312344312	Basic 4x4 Sudoku 590	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 . 3 . . 3 . 4 . . 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_591	...44..2.3......	3214413223411423	Basic 4x4 Sudoku 591	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 . 3 . . . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_592	4..3.3.42....1..	4213132424313142	Basic 4x4 Sudoku 592	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 2 . . . . 1 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_593	3.211.34..1.2...	3421123443122143	Basic 4x4 Sudoku 593	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 . . 1 . 2 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_594	.2.31.24.....1..	4213132424313142	Basic 4x4 Sudoku 594	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 4 . . . . . 1 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_595	...4.21313....3.	3124421313422431	Basic 4x4 Sudoku 595	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 3 1 3 . . . . 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_596	4.2...1.1...324.	4123231414323241	Basic 4x4 Sudoku 596	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 . 1 . . . 3 2 4 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_597	4..2.....12.....	4312124331242431	Basic 4x4 Sudoku 597	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	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_598	3..2..3...2..4.3	3142423113242413	Basic 4x4 Sudoku 598	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	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_599	..3.3..442..1...	2431312442131342	Basic 4x4 Sudoku 599	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 4 2 . . 1 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.

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