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_900	.34...2.4..2.2.4	2341142341323214	Basic 4x4 Sudoku 900	Easy Sudoku	Each row, column, and 2×2 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 . 2 . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_901	..3.3.4......12.	1432324123144123	Basic 4x4 Sudoku 901	Easy Sudoku	Each row, column, and 2×2 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 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_902	21.4....14...24.	2134431214233241	Basic 4x4 Sudoku 902	Easy Sudoku	Each row, column, and 2×2 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 4 . . . 2 4 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_903	.4.2.23....3..41	3412123441232341	Basic 4x4 Sudoku 903	Easy Sudoku	Each row, column, and 2×2 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 . . . . 3 . . 4 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_904	...24.1..12.2.3.	1342421331242431	Basic 4x4 Sudoku 904	Easy Sudoku	Each row, column, and 2×2 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 2 . 2 . 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_905	..31...4134.4...	2431312413424213	Basic 4x4 Sudoku 905	Easy Sudoku	Each row, column, and 2×2 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 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_906	...44.2..1..2..3	1234432131422413	Basic 4x4 Sudoku 906	Easy Sudoku	Each row, column, and 2×2 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 . . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_907	....4.2..4.3.1..	1234432124133142	Basic 4x4 Sudoku 907	Easy Sudoku	Each row, column, and 2×2 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 . 1 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_908	..42...31....2..	3142241313244231	Basic 4x4 Sudoku 908	Easy Sudoku	Each row, column, and 2×2 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_909	..1....4.142.4..	4213132431422431	Basic 4x4 Sudoku 909	Easy Sudoku	Each row, column, and 2×2 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 2 . 4 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_910	....14......3..2	2314142342313142	Basic 4x4 Sudoku 910	Easy Sudoku	Each row, column, and 2×2 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	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_911	.21....2...13...	4213134224313124	Basic 4x4 Sudoku 911	Easy Sudoku	Each row, column, and 2×2 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 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_912	..1..34.....4...	2413134231244231	Basic 4x4 Sudoku 912	Easy Sudoku	Each row, column, and 2×2 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 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_913	2..4.4.1.....31.	2134342112434312	Basic 4x4 Sudoku 913	Easy Sudoku	Each row, column, and 2×2 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 . . . . . 3 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_914	....2.1..2.3.42.	4132231412433421	Basic 4x4 Sudoku 914	Easy Sudoku	Each row, column, and 2×2 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 . 3 . 4 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_915	....1..2..43.3..	3214143221434321	Basic 4x4 Sudoku 915	Easy Sudoku	Each row, column, and 2×2 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 . 3 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_916	..41.12......3..	3241412314322314	Basic 4x4 Sudoku 916	Easy Sudoku	Each row, column, and 2×2 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 . . . . . . 3 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_917	.4.1.......22.1.	3421124341322314	Basic 4x4 Sudoku 917	Easy Sudoku	Each row, column, and 2×2 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 . 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_918	32.4....4....1.3	3214143243212143	Basic 4x4 Sudoku 918	Easy Sudoku	Each row, column, and 2×2 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 . . . . 1 . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_919	.24......421....	1243431234212134	Basic 4x4 Sudoku 919	Easy Sudoku	Each row, column, and 2×2 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	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_920	.2..3...2..3...1	1234341221434321	Basic 4x4 Sudoku 920	Easy Sudoku	Each row, column, and 2×2 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 . . 3 . . . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_921	.....34..1..34..	4213134221343421	Basic 4x4 Sudoku 921	Easy Sudoku	Each row, column, and 2×2 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 4 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_922	...2..4..1..3421	4312124321343421	Basic 4x4 Sudoku 922	Easy Sudoku	Each row, column, and 2×2 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 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_923	.2...1.4...2..1.	4231312413422413	Basic 4x4 Sudoku 923	Easy Sudoku	Each row, column, and 2×2 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 . . 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_924	...121..1..3.3..	3421213412434312	Basic 4x4 Sudoku 924	Easy Sudoku	Each row, column, and 2×2 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 . . 1 . . 3 . 3 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_925	.13....12....4..	4132324123141423	Basic 4x4 Sudoku 925	Easy Sudoku	Each row, column, and 2×2 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 . . . . 4 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_926	..3.43.2.423...1	2134431214233241	Basic 4x4 Sudoku 926	Easy Sudoku	Each row, column, and 2×2 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 . 2 . 4 2 3 . . . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_927	.4....3...1....2	3421213442131342	Basic 4x4 Sudoku 927	Easy Sudoku	Each row, column, and 2×2 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_928	......23.1...24.	2314142341323241	Basic 4x4 Sudoku 928	Easy Sudoku	Each row, column, and 2×2 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 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_929	2....3..4..1...2	2413132442313142	Basic 4x4 Sudoku 929	Easy Sudoku	Each row, column, and 2×2 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_930	..42.21..1.4.43.	1342421331242431	Basic 4x4 Sudoku 930	Easy Sudoku	Each row, column, and 2×2 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 1 . . 1 . 4 . 4 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_931	...23.1.....142.	4132321423411423	Basic 4x4 Sudoku 931	Easy Sudoku	Each row, column, and 2×2 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 4 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_932	3......42......2	3421123421434312	Basic 4x4 Sudoku 932	Easy Sudoku	Each row, column, and 2×2 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	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_933	.4..2..1421.3...	1432234142133124	Basic 4x4 Sudoku 933	Easy Sudoku	Each row, column, and 2×2 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 2 1 . 3 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_934	..1..24.4.2...34	3412124343212134	Basic 4x4 Sudoku 934	Easy Sudoku	Each row, column, and 2×2 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 . 2 . . . 3 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_935	.4.2.2....23...4	1432324141232314	Basic 4x4 Sudoku 935	Easy Sudoku	Each row, column, and 2×2 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 . . . . 2 3 . . . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_936	4....13..2....1.	4321213412433412	Basic 4x4 Sudoku 936	Easy Sudoku	Each row, column, and 2×2 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_937	2...34.24....3.4	2143341242311324	Basic 4x4 Sudoku 937	Easy Sudoku	Each row, column, and 2×2 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 . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_938	..21..4.3....4..	4321214332141432	Basic 4x4 Sudoku 938	Easy Sudoku	Each row, column, and 2×2 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	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_939	1....24...2.....	1432324141232314	Basic 4x4 Sudoku 939	Easy Sudoku	Each row, column, and 2×2 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 . . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_940	...2..1.3.4.1...	4132231432411423	Basic 4x4 Sudoku 940	Easy Sudoku	Each row, column, and 2×2 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 . 1 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_941	...22.1.1..33.2.	4132231412433421	Basic 4x4 Sudoku 941	Easy Sudoku	Each row, column, and 2×2 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 . 1 . . 3 3 . 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_942	1...2.3....4.21.	1342243131244213	Basic 4x4 Sudoku 942	Easy Sudoku	Each row, column, and 2×2 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 . 2 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_943	....3241.13..3.4	1423324141322314	Basic 4x4 Sudoku 943	Easy Sudoku	Each row, column, and 2×2 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 . 1 3 . . 3 . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_944	..1441...4.33..1	2314413214233241	Basic 4x4 Sudoku 944	Easy Sudoku	Each row, column, and 2×2 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 1 . . . 4 . 3 3 . . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_945	.14....114.3...4	3142423114232314	Basic 4x4 Sudoku 945	Easy Sudoku	Each row, column, and 2×2 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 1 4 . 3 . . . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_946	4...32.4243...4.	4123321424311342	Basic 4x4 Sudoku 946	Easy Sudoku	Each row, column, and 2×2 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 2 4 3 . . . 4 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_947	4....3...1.3..1.	4231132421433412	Basic 4x4 Sudoku 947	Easy Sudoku	Each row, column, and 2×2 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 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_948	.4..1..2.2.3....	2431134242133124	Basic 4x4 Sudoku 948	Easy Sudoku	Each row, column, and 2×2 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 . 3 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_949	..2....1.132.3..	1423324141322314	Basic 4x4 Sudoku 949	Easy Sudoku	Each row, column, and 2×2 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 3 2 . 3 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_950	412...1.....2.31	4123321413422431	Basic 4x4 Sudoku 950	Easy Sudoku	Each row, column, and 2×2 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 . . . . . 2 . 3 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_951	.4..3.4...1....3	1432324123144123	Basic 4x4 Sudoku 951	Easy Sudoku	Each row, column, and 2×2 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 . . . . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_952	....12..3..4....	4312124331242431	Basic 4x4 Sudoku 952	Easy Sudoku	Each row, column, and 2×2 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_953	....4.13...13124	1342421324313124	Basic 4x4 Sudoku 953	Easy Sudoku	Each row, column, and 2×2 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 1 2 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_954	4.3..21423......	4132321423411423	Basic 4x4 Sudoku 954	Easy Sudoku	Each row, column, and 2×2 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 2 3 . . . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_955	..4.1.3.3.1.41..	2341143232144123	Basic 4x4 Sudoku 955	Easy Sudoku	Each row, column, and 2×2 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 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_956	...22.3.3...412.	1342243132144123	Basic 4x4 Sudoku 956	Easy Sudoku	Each row, column, and 2×2 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 1 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_957	34......4.31...4	3412214342311324	Basic 4x4 Sudoku 957	Easy Sudoku	Each row, column, and 2×2 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 . 3 1 . . . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_958	.2..4....42..1.4	1243431234212134	Basic 4x4 Sudoku 958	Easy Sudoku	Each row, column, and 2×2 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	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_959	..13....2.3.3142	4213132424313142	Basic 4x4 Sudoku 959	Easy Sudoku	Each row, column, and 2×2 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 4 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_960	.4.....23.....1.	2431134231244213	Basic 4x4 Sudoku 960	Easy Sudoku	Each row, column, and 2×2 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	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_961	4.......1..4..31	4213314213242431	Basic 4x4 Sudoku 961	Easy Sudoku	Each row, column, and 2×2 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	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_962	.1....4...2..4..	4132324113242413	Basic 4x4 Sudoku 962	Easy Sudoku	Each row, column, and 2×2 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_963	231.....4.3.32..	2314142341323241	Basic 4x4 Sudoku 963	Easy Sudoku	Each row, column, and 2×2 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 . 3 . 3 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_964	.342.2....343.2.	1342421321343421	Basic 4x4 Sudoku 964	Easy Sudoku	Each row, column, and 2×2 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 . . . . 3 4 3 . 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_965	...2..1..43.1...	3142421324311324	Basic 4x4 Sudoku 965	Easy Sudoku	Each row, column, and 2×2 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 . 1 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_966	...2.4.....1.2..	3142241343211234	Basic 4x4 Sudoku 966	Easy Sudoku	Each row, column, and 2×2 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 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_967	...31...3..2.2..	2413132431424231	Basic 4x4 Sudoku 967	Easy Sudoku	Each row, column, and 2×2 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 . 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_968	231....2..4.34.1	2314413212433421	Basic 4x4 Sudoku 968	Easy Sudoku	Each row, column, and 2×2 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 . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_969	.1.3...2.....321	2143341212344321	Basic 4x4 Sudoku 969	Easy Sudoku	Each row, column, and 2×2 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 2 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_970	......233214.13.	2341142332144132	Basic 4x4 Sudoku 970	Easy Sudoku	Each row, column, and 2×2 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 2 1 4 . 1 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_971	.2....124..3....	1234341241232341	Basic 4x4 Sudoku 971	Easy Sudoku	Each row, column, and 2×2 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	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_972	......14432..143	1432321443212143	Basic 4x4 Sudoku 972	Easy Sudoku	Each row, column, and 2×2 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 . . 1 4 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_973	1....23.21.3....	1324423121433412	Basic 4x4 Sudoku 973	Easy Sudoku	Each row, column, and 2×2 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 . 3 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_974	......4.4..13...	2413134242313124	Basic 4x4 Sudoku 974	Easy Sudoku	Each row, column, and 2×2 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 3 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_975	..1..2.4..4.3...	4312123421433421	Basic 4x4 Sudoku 975	Easy Sudoku	Each row, column, and 2×2 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 . 3 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_976	....14........21	3214143221434321	Basic 4x4 Sudoku 976	Easy Sudoku	Each row, column, and 2×2 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	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_977	2...34..4.2.1.4.	2134341243211243	Basic 4x4 Sudoku 977	Easy Sudoku	Each row, column, and 2×2 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 . 2 . 1 . 4 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_978	42.31...2.34.4..	4213134221343421	Basic 4x4 Sudoku 978	Easy Sudoku	Each row, column, and 2×2 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 4 . 4 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_979	132..4..31.2...3	1324243131424213	Basic 4x4 Sudoku 979	Easy Sudoku	Each row, column, and 2×2 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 . . 3 1 . 2 . . . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_980	..4......3.1.1.4	1243341243212134	Basic 4x4 Sudoku 980	Easy Sudoku	Each row, column, and 2×2 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 . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_981	4.23..4.34..12..	4123234134121234	Basic 4x4 Sudoku 981	Easy Sudoku	Each row, column, and 2×2 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 . . 4 . 3 4 . . 1 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_982	.13..3.2.42.1.4.	2134431234211243	Basic 4x4 Sudoku 982	Easy Sudoku	Each row, column, and 2×2 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 2 . 1 . 4 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_983	..2...13.3..2.3.	3124421313422431	Basic 4x4 Sudoku 983	Easy Sudoku	Each row, column, and 2×2 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 . 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_984	.4.12.4...1.12..	3421214343121234	Basic 4x4 Sudoku 984	Easy Sudoku	Each row, column, and 2×2 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 . 1 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_985	2.1.....42..3124	2413134242313124	Basic 4x4 Sudoku 985	Easy Sudoku	Each row, column, and 2×2 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 . . 3 1 2 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_986	413...1...2332..	4132231414233241	Basic 4x4 Sudoku 986	Easy Sudoku	Each row, column, and 2×2 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 3 3 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_987	....4.3....32.41	3214413214232341	Basic 4x4 Sudoku 987	Easy Sudoku	Each row, column, and 2×2 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 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_988	.3....13.4212..4	1342421334212134	Basic 4x4 Sudoku 988	Easy Sudoku	Each row, column, and 2×2 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 2 1 2 . . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_989	3..1..324.23..1.	3241143241232314	Basic 4x4 Sudoku 989	Easy Sudoku	Each row, column, and 2×2 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 . 2 3 . . 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_990	..1....3.4.2.3..	3214412314322341	Basic 4x4 Sudoku 990	Easy Sudoku	Each row, column, and 2×2 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 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_991	2....1....3.3..4	2341412314323214	Basic 4x4 Sudoku 991	Easy Sudoku	Each row, column, and 2×2 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 . . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_992	..211.4.23..4...	3421124323144132	Basic 4x4 Sudoku 992	Easy Sudoku	Each row, column, and 2×2 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 . 4 . 2 3 . . 4 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_993	.1..4.2...4.....	2134432112433412	Basic 4x4 Sudoku 993	Easy Sudoku	Each row, column, and 2×2 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_994	...242...13.....	1342421321343421	Basic 4x4 Sudoku 994	Easy Sudoku	Each row, column, and 2×2 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 3 . . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_995	.4....4131....1.	1432234131244213	Basic 4x4 Sudoku 995	Easy Sudoku	Each row, column, and 2×2 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 3 1 . . . . 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_996	12...3....1..134	1243432134122134	Basic 4x4 Sudoku 996	Easy Sudoku	Each row, column, and 2×2 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 . . 1 3 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_997	.3..2...32.4.4..	4321214332141432	Basic 4x4 Sudoku 997	Easy Sudoku	Each row, column, and 2×2 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 . 4 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_998	1....2....1...23	1432324123144123	Basic 4x4 Sudoku 998	Easy Sudoku	Each row, column, and 2×2 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 . . . 2 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_999	2..113...1.33..4	2431134241233214	Basic 4x4 Sudoku 999	Easy Sudoku	Each row, column, and 2×2 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 3 . . . 1 . 3 3 . . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.

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