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_200	3..2....234..1..	3412123423414123	Basic 4x4 Sudoku 200	Easy Sudoku	Each row, column, and 2×2 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 3 4 . . 1 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_201	234..4..3.....3.	2341142332144132	Basic 4x4 Sudoku 201	Easy Sudoku	Each row, column, and 2×2 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 . . 3 . . . . . 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_202	.2.43.2..1......	1234342121434312	Basic 4x4 Sudoku 202	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	. 2 . 4 3 . 2 . . 1 . . . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_203	.4.....2.3..42.1	2413314213244231	Basic 4x4 Sudoku 203	Easy Sudoku	Each row, column, and 2×2 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 2 . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_204	4.3...14.4..2..1	4132321414232341	Basic 4x4 Sudoku 204	Easy Sudoku	Each row, column, and 2×2 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 . 4 . . 2 . . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_205	.13..4..4.13....	2134342142131342	Basic 4x4 Sudoku 205	Easy Sudoku	Each row, column, and 2×2 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 . 1 3 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_206	.1..2.14......23	4132231432411423	Basic 4x4 Sudoku 206	Easy Sudoku	Each row, column, and 2×2 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 4 . . . . . . 2 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_207	..42.4.3.2313...	1342241342313124	Basic 4x4 Sudoku 207	Easy Sudoku	Each row, column, and 2×2 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 3 1 3 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_208	.4..2...3....2.1	1423231431424231	Basic 4x4 Sudoku 208	Easy Sudoku	Each row, column, and 2×2 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 . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_209	.41...3.1....3..	3412213412434321	Basic 4x4 Sudoku 209	Easy Sudoku	Each row, column, and 2×2 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_210	.4133.4..2.....1	2413314212344321	Basic 4x4 Sudoku 210	Easy Sudoku	Each row, column, and 2×2 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 . 4 . . 2 . . . . . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_211	.....32.32...132	2413132432414132	Basic 4x4 Sudoku 211	Easy Sudoku	Each row, column, and 2×2 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 . . . 1 3 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_212	.....4.3.312....	3241142343122134	Basic 4x4 Sudoku 212	Easy Sudoku	Each row, column, and 2×2 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 2 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_213	.4.13...12......	2431312412434312	Basic 4x4 Sudoku 213	Easy Sudoku	Each row, column, and 2×2 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_214	3....21........4	3142421324311324	Basic 4x4 Sudoku 214	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	3 . . . . 2 1 . . . . . . . . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_215	24.31.2.4..1..4.	2413132442313142	Basic 4x4 Sudoku 215	Easy Sudoku	Each row, column, and 2×2 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 . 2 . 4 . . 1 . . 4 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_216	.12......2.41...	4123234132141432	Basic 4x4 Sudoku 216	Easy Sudoku	Each row, column, and 2×2 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 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_217	.3..4.2..24.1...	2314412332411432	Basic 4x4 Sudoku 217	Easy Sudoku	Each row, column, and 2×2 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 . 1 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_218	...3.1.....22.3.	4213312413422431	Basic 4x4 Sudoku 218	Easy Sudoku	Each row, column, and 2×2 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 2 . 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_219	2.1.31.4.231....	2413312442311342	Basic 4x4 Sudoku 219	Easy Sudoku	Each row, column, and 2×2 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 . 4 . 2 3 1 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_220	.......23.1..4..	2341413232141423	Basic 4x4 Sudoku 220	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	. . . . . . . 2 3 . 1 . . 4 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_221	.....2..1..3.34.	4132321414232341	Basic 4x4 Sudoku 221	Easy Sudoku	Each row, column, and 2×2 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_222	4.2..1.....3....	4321213412433412	Basic 4x4 Sudoku 222	Easy Sudoku	Each row, column, and 2×2 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 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_223	..2.2.3..14.42..	1324243131424213	Basic 4x4 Sudoku 223	Easy Sudoku	Each row, column, and 2×2 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 4 . 4 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_224	.4..31.2.2.4....	2413314212344321	Basic 4x4 Sudoku 224	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	. 4 . . 3 1 . 2 . 2 . 4 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_225	3..4412..4.1....	3214412324311342	Basic 4x4 Sudoku 225	Easy Sudoku	Each row, column, and 2×2 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 1 2 . . 4 . 1 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_226	......3124.33..4	1342423124133124	Basic 4x4 Sudoku 226	Easy Sudoku	Each row, column, and 2×2 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 . 3 3 . . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_227	3..2.41..2.....4	3142241342311324	Basic 4x4 Sudoku 227	Easy Sudoku	Each row, column, and 2×2 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 . . 2 . . . . . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_228	...131..2.....4.	4231312424131342	Basic 4x4 Sudoku 228	Easy Sudoku	Each row, column, and 2×2 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_229	4.23.......22.14	4123324114322314	Basic 4x4 Sudoku 229	Easy Sudoku	Each row, column, and 2×2 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 2 . 1 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_230	3.....1....24...	3124241313424231	Basic 4x4 Sudoku 230	Easy Sudoku	Each row, column, and 2×2 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_231	....24.33.4.41..	1324241332414132	Basic 4x4 Sudoku 231	Easy Sudoku	Each row, column, and 2×2 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 . 4 . 4 1 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_232	431.....1.3.....	4312214312343421	Basic 4x4 Sudoku 232	Easy Sudoku	Each row, column, and 2×2 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 . . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_233	3.1.41.2.3...42.	3214413223411423	Basic 4x4 Sudoku 233	Easy Sudoku	Each row, column, and 2×2 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 . 2 . 3 . . . 4 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_234	......4..4.2.3..	4123324114322314	Basic 4x4 Sudoku 234	Easy Sudoku	Each row, column, and 2×2 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_235	4.2...43.2..1.32	4321214332141432	Basic 4x4 Sudoku 235	Easy Sudoku	Each row, column, and 2×2 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 . 3 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_236	....13....2..2.3	2431134231244213	Basic 4x4 Sudoku 236	Easy Sudoku	Each row, column, and 2×2 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	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_237	.31....3.42..1..	4312124334212134	Basic 4x4 Sudoku 237	Easy Sudoku	Each row, column, and 2×2 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 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_238	.3...4....42...3	1324243131424213	Basic 4x4 Sudoku 238	Easy Sudoku	Each row, column, and 2×2 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 2 . . . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_239	413.231.......43	4132231434211243	Basic 4x4 Sudoku 239	Easy Sudoku	Each row, column, and 2×2 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 3 1 . . . . . . . 4 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_240	....3.41.....41.	4132324113242413	Basic 4x4 Sudoku 240	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	. . . . 3 . 4 1 . . . . . 4 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_241	..3.34.1...31...	2134342142131342	Basic 4x4 Sudoku 241	Easy Sudoku	Each row, column, and 2×2 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 . . . 3 1 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_242	....2...1.23.2.4	4132234114233214	Basic 4x4 Sudoku 242	Easy Sudoku	Each row, column, and 2×2 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 . 2 . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_243	23..1.3...2.42..	2341143231244213	Basic 4x4 Sudoku 243	Easy Sudoku	Each row, column, and 2×2 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 . 4 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_244	...4....2.4.4132	3214142323414132	Basic 4x4 Sudoku 244	Easy Sudoku	Each row, column, and 2×2 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 . 4 1 3 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_245	..1..3......34..	4213134221343421	Basic 4x4 Sudoku 245	Easy Sudoku	Each row, column, and 2×2 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	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_246	3.4...3..1......	3241143241232314	Basic 4x4 Sudoku 246	Easy Sudoku	Each row, column, and 2×2 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 . . . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_247	1..232.4...141..	1432321423414123	Basic 4x4 Sudoku 247	Easy Sudoku	Each row, column, and 2×2 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 . 4 . . . 1 4 1 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_248	..42.23.1.2...13	3142423113242413	Basic 4x4 Sudoku 248	Easy Sudoku	Each row, column, and 2×2 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 . 1 . 2 . . . 1 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_249	...2.3...4.....1	4132231414233241	Basic 4x4 Sudoku 249	Easy Sudoku	Each row, column, and 2×2 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	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_250	4...32.....1..3.	4123321423411432	Basic 4x4 Sudoku 250	Easy Sudoku	Each row, column, and 2×2 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_251	....2..1.234341.	4123234112343412	Basic 4x4 Sudoku 251	Easy Sudoku	Each row, column, and 2×2 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 3 4 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_252	1.4..2..3.2..43.	1342421331242431	Basic 4x4 Sudoku 252	Easy Sudoku	Each row, column, and 2×2 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 . 2 . . 4 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_253	.3.212....34....	4312124321343421	Basic 4x4 Sudoku 253	Easy Sudoku	Each row, column, and 2×2 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 4 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_254	3....12...3....2	3214412324311342	Basic 4x4 Sudoku 254	Easy Sudoku	Each row, column, and 2×2 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_255	4.2..24.1....3..	4123324114322314	Basic 4x4 Sudoku 255	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	4 . 2 . . 2 4 . 1 . . . . 3 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_256	.1.4...23...14.3	2134431232411423	Basic 4x4 Sudoku 256	Easy Sudoku	Each row, column, and 2×2 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 . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_257	.32..13..2....12	4321213412433412	Basic 4x4 Sudoku 257	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	. 3 2 . . 1 3 . . 2 . . . . 1 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_258	.2...1...4.22.1.	3241412314322314	Basic 4x4 Sudoku 258	Easy Sudoku	Each row, column, and 2×2 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 2 . 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_259	4.2...41.31.1.3.	4123324123141432	Basic 4x4 Sudoku 259	Easy Sudoku	Each row, column, and 2×2 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 . 3 1 . 1 . 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_260	1.2...3..1.3....	1324423121433412	Basic 4x4 Sudoku 260	Easy Sudoku	Each row, column, and 2×2 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	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_261	...1.4.2....32..	2341143241233214	Basic 4x4 Sudoku 261	Easy Sudoku	Each row, column, and 2×2 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 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_262	.....1..1.4.24.3	4231312413422413	Basic 4x4 Sudoku 262	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	. . . . . 1 . . 1 . 4 . 2 4 . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_263	.2.3..42..21....	4213134234212134	Basic 4x4 Sudoku 263	Easy Sudoku	Each row, column, and 2×2 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 . . 2 1 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_264	....3.144132....	1423321441322341	Basic 4x4 Sudoku 264	Easy Sudoku	Each row, column, and 2×2 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 1 3 2 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_265	1...2431.1.....4	1342243141233214	Basic 4x4 Sudoku 265	Easy Sudoku	Each row, column, and 2×2 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 1 . 1 . . . . . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_266	2..3..21..14.4..	2143432132141432	Basic 4x4 Sudoku 266	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	2 . . 3 . . 2 1 . . 1 4 . 4 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_267	.3..243.3...412.	1342243132144123	Basic 4x4 Sudoku 267	Easy Sudoku	Each row, column, and 2×2 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 . 3 . . . 4 1 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_268	.2......1.4..41.	4231312413422413	Basic 4x4 Sudoku 268	Easy Sudoku	Each row, column, and 2×2 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 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_269	..1..4....4.42..	2314142331424231	Basic 4x4 Sudoku 269	Easy Sudoku	Each row, column, and 2×2 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 . 4 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_270	.43.1..4...3....	2431132442133142	Basic 4x4 Sudoku 270	Easy Sudoku	Each row, column, and 2×2 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 . . . 3 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_271	4.31....13.2.41.	4231312413422413	Basic 4x4 Sudoku 271	Easy Sudoku	Each row, column, and 2×2 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 . 4 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_272	14....4...24...3	1432234131244213	Basic 4x4 Sudoku 272	Easy Sudoku	Each row, column, and 2×2 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 . . . 2 4 . . . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_273	4....32.3.....4.	4231132434122143	Basic 4x4 Sudoku 273	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	4 . . . . 3 2 . 3 . . . . . 4 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_274	4.3...2.....2.4.	4231132434122143	Basic 4x4 Sudoku 274	Easy Sudoku	Each row, column, and 2×2 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 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_275	.43....42......3	1432321423414123	Basic 4x4 Sudoku 275	Easy Sudoku	Each row, column, and 2×2 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 . . . . . . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_276	...3..2.1..2.4.1	4213312413422431	Basic 4x4 Sudoku 276	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	. . . 3 . . 2 . 1 . . 2 . 4 . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_277	.2313...1..4.41.	4231314213242413	Basic 4x4 Sudoku 277	Easy Sudoku	Each row, column, and 2×2 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 . . . 1 . . 4 . 4 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_278	..3.2.411....2..	4132234114233214	Basic 4x4 Sudoku 278	Easy Sudoku	Each row, column, and 2×2 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 . . . . 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_279	....4..2.43..1..	1243431224313124	Basic 4x4 Sudoku 279	Easy Sudoku	Each row, column, and 2×2 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_280	..2..3.44.3.3..1	1423231441323241	Basic 4x4 Sudoku 280	Easy Sudoku	Each row, column, and 2×2 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 . 3 . 3 . . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_281	.3.2....1.4.....	4312213412433421	Basic 4x4 Sudoku 281	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	. 3 . 2 . . . . 1 . 4 . . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_282	.1.....34....2..	3142241343211234	Basic 4x4 Sudoku 282	Easy Sudoku	Each row, column, and 2×2 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 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_283	2..4.42.3.4..1..	2314142332414132	Basic 4x4 Sudoku 283	Easy Sudoku	Each row, column, and 2×2 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 . 3 . 4 . . 1 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_284	..3..12.....2...	4231312413422413	Basic 4x4 Sudoku 284	Easy Sudoku	Each row, column, and 2×2 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 . . . . . 2 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_285	1.2..413..3....2	1324241342313142	Basic 4x4 Sudoku 285	Easy Sudoku	Each row, column, and 2×2 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 . . . . 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_286	.2343.2..143....	1234342121434312	Basic 4x4 Sudoku 286	Easy Sudoku	Each row, column, and 2×2 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 4 3 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_287	.2.4..2.1.....4.	3214412314322341	Basic 4x4 Sudoku 287	Easy Sudoku	Each row, column, and 2×2 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 . . . . . 4 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_288	2.1..........34.	2413312442311342	Basic 4x4 Sudoku 288	Easy Sudoku	Each row, column, and 2×2 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_289	2..4..1.34......	2134431234211243	Basic 4x4 Sudoku 289	Easy Sudoku	Each row, column, and 2×2 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 . . . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_290	13..2.........41	1324241341323241	Basic 4x4 Sudoku 290	Easy Sudoku	Each row, column, and 2×2 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	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_291	2.4....3.1.2..1.	2341142341323214	Basic 4x4 Sudoku 291	Easy Sudoku	Each row, column, and 2×2 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 . 2 . . 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_292	...3..14.1.24...	1423231431424231	Basic 4x4 Sudoku 292	Easy Sudoku	Each row, column, and 2×2 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 . 2 4 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_293	.4.2...4.2.343..	3412213412434321	Basic 4x4 Sudoku 293	Easy Sudoku	Each row, column, and 2×2 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 . 2 . 3 4 3 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_294	......323..1.423	2314413232411423	Basic 4x4 Sudoku 294	Easy Sudoku	Each row, column, and 2×2 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 . 4 2 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_295	1......2..41....	1234341223414123	Basic 4x4 Sudoku 295	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	1 . . . . . . 2 . . 4 1 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_296	..4.4..1.2..1...	2143432132141432	Basic 4x4 Sudoku 296	Easy Sudoku	Each row, column, and 2×2 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 . . 1 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_297	...2..3.24..1.24	3142423124131324	Basic 4x4 Sudoku 297	Easy Sudoku	Each row, column, and 2×2 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 . . 1 . 2 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_298	.2.....31...2341	3214412314322341	Basic 4x4 Sudoku 298	Easy Sudoku	Each row, column, and 2×2 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 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_299	.4.1.....1..3...	2431134241233214	Basic 4x4 Sudoku 299	Easy Sudoku	Each row, column, and 2×2 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 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.

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