MultiRL/annotation_dataset · Datasets at Hugging Face

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_1900	4.....3.342..2.3	4312213434211243	Basic 4x4 Sudoku 1900	Easy Sudoku	Each row, column, and 2×2 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 . . 2 . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1901	.2.......31..12.	3241143223144123	Basic 4x4 Sudoku 1901	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	. 2 . . . . . . . 3 1 . . 1 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1902	43.12.3..4..1.4.	4321213434121243	Basic 4x4 Sudoku 1902	Easy Sudoku	Each row, column, and 2×2 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 . . 1 . 4 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1903	23.11.....14..32	2341142332144132	Basic 4x4 Sudoku 1903	Easy Sudoku	Each row, column, and 2×2 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 . . . . . 1 4 . . 3 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1904	4.....1..3.1...3	4132321423411423	Basic 4x4 Sudoku 1904	Easy Sudoku	Each row, column, and 2×2 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_1905	..4.2.3.3....2..	1342243131244213	Basic 4x4 Sudoku 1905	Easy Sudoku	Each row, column, and 2×2 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 . 3 . . . . 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1906	...4...3.23.1...	3124241342311342	Basic 4x4 Sudoku 1906	Easy Sudoku	Each row, column, and 2×2 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 . 1 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1907	41...3.434......	4132231434211243	Basic 4x4 Sudoku 1907	Easy Sudoku	Each row, column, and 2×2 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 . 4 3 4 . . . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1908	..31...21..3..1.	4231314214232314	Basic 4x4 Sudoku 1908	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	. . 3 1 . . . 2 1 . . 3 . . 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1909	.21.1.4..12.....	4213134231242431	Basic 4x4 Sudoku 1909	Easy Sudoku	Each row, column, and 2×2 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 . . 1 2 . . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1910	.2..4..2...41...	3241413223141423	Basic 4x4 Sudoku 1910	Easy Sudoku	Each row, column, and 2×2 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 . . . 4 1 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1911	43...1.31..4.41.	4321214312343412	Basic 4x4 Sudoku 1911	Easy Sudoku	Each row, column, and 2×2 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 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1912	4..31....42.21.4	4213134234212134	Basic 4x4 Sudoku 1912	Easy Sudoku	Each row, column, and 2×2 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 . 2 1 . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1913	3...1..241....1.	3241143241232314	Basic 4x4 Sudoku 1913	Easy Sudoku	Each row, column, and 2×2 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 1 . . . . 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1914	..3....1.143.41.	1234432121433412	Basic 4x4 Sudoku 1914	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	. . 3 . . . . 1 . 1 4 3 . 4 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1915	.3.....4..13...2	4321123424133142	Basic 4x4 Sudoku 1915	Easy Sudoku	Each row, column, and 2×2 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_1916	....41.23..4.42.	2341413232141423	Basic 4x4 Sudoku 1916	Easy Sudoku	Each row, column, and 2×2 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 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1917	.241.42...14....	3241142323144132	Basic 4x4 Sudoku 1917	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	. 2 4 1 . 4 2 . . . 1 4 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1918	.34......4..2...	1342421334212134	Basic 4x4 Sudoku 1918	Easy Sudoku	Each row, column, and 2×2 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 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1919	4...3..223..1.23	4231314223141423	Basic 4x4 Sudoku 1919	Easy Sudoku	Each row, column, and 2×2 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 3 . . 1 . 2 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1920	.31.4..2.4.1....	2314413234211243	Basic 4x4 Sudoku 1920	Easy Sudoku	Each row, column, and 2×2 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 . . 2 . 4 . 1 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1921	2..1.34...1..123	2431134232144123	Basic 4x4 Sudoku 1921	Easy Sudoku	Each row, column, and 2×2 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 . . 1 2 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1922	3.1...3423..4...	3412123423414123	Basic 4x4 Sudoku 1922	Easy Sudoku	Each row, column, and 2×2 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 3 . . 4 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1923	4.....3...1.3...	4321123424133142	Basic 4x4 Sudoku 1923	Easy Sudoku	Each row, column, and 2×2 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 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1924	.....3...2141.2.	4132234132141423	Basic 4x4 Sudoku 1924	Easy Sudoku	Each row, column, and 2×2 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 1 . 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1925	1...2.3.3.2..2..	1342243131244213	Basic 4x4 Sudoku 1925	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	1 . . . 2 . 3 . 3 . 2 . . 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1926	1..32......1.13.	1423231432414132	Basic 4x4 Sudoku 1926	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	1 . . 3 2 . . . . . . 1 . 1 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1927	..3..1.41..3.3..	2431312412434312	Basic 4x4 Sudoku 1927	Easy Sudoku	Each row, column, and 2×2 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 . 3 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1928	..1.....1.4..3.1	3412213412434321	Basic 4x4 Sudoku 1928	Easy Sudoku	Each row, column, and 2×2 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 . . 3 . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1929	....41....21....	2314413234211243	Basic 4x4 Sudoku 1929	Easy Sudoku	Each row, column, and 2×2 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 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1930	4.....4.23....32	4123324123141432	Basic 4x4 Sudoku 1930	Easy Sudoku	Each row, column, and 2×2 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 . . . . 3 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1931	..32..14..4.34.1	4132231412433421	Basic 4x4 Sudoku 1931	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	. . 3 2 . . 1 4 . . 4 . 3 4 . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1932	2....3.24231....	2413134242313124	Basic 4x4 Sudoku 1932	Easy Sudoku	Each row, column, and 2×2 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 2 3 1 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1933	.1....31..4.4..3	3124243113424213	Basic 4x4 Sudoku 1933	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	. 1 . . . . 3 1 . . 4 . 4 . . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1934	43..21431....2..	4321214314323214	Basic 4x4 Sudoku 1934	Easy Sudoku	Each row, column, and 2×2 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 3 1 . . . . 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1935	...24.....23....	3142423114232314	Basic 4x4 Sudoku 1935	Easy Sudoku	Each row, column, and 2×2 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_1936	....31.4243.....	4213312424311342	Basic 4x4 Sudoku 1936	Easy Sudoku	Each row, column, and 2×2 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 2 4 3 . . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1937	...1.32.....2.1.	4231132431422413	Basic 4x4 Sudoku 1937	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	. . . 1 . 3 2 . . . . . 2 . 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1938	3....1...324..1.	3241413213242413	Basic 4x4 Sudoku 1938	Easy Sudoku	Each row, column, and 2×2 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 . . 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1939	2.3...2......4.2	2134432112433412	Basic 4x4 Sudoku 1939	Easy Sudoku	Each row, column, and 2×2 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 . 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1940	243.....3..2....	2431132431424213	Basic 4x4 Sudoku 1940	Easy Sudoku	Each row, column, and 2×2 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 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1941	1.3..34..1.442..	1432234131244213	Basic 4x4 Sudoku 1941	Easy Sudoku	Each row, column, and 2×2 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 . . 1 . 4 4 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1942	....3..423.1142.	4132321423411423	Basic 4x4 Sudoku 1942	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	. . . . 3 . . 4 2 3 . 1 1 4 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1943	...4.3...1..3.1.	1234432121433412	Basic 4x4 Sudoku 1943	Easy Sudoku	Each row, column, and 2×2 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_1944	.4.33..4.3....32	1423321423414132	Basic 4x4 Sudoku 1944	Easy Sudoku	Each row, column, and 2×2 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 . 3 . . . . 3 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1945	..131....231...2	2413132442313142	Basic 4x4 Sudoku 1945	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	. . 1 3 1 . . . . 2 3 1 . . . 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1946	..4.423.312..4..	1342423131242413	Basic 4x4 Sudoku 1946	Easy Sudoku	Each row, column, and 2×2 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 . 3 1 2 . . 4 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1947	243.3.......1.2.	2431314242131324	Basic 4x4 Sudoku 1947	Easy Sudoku	Each row, column, and 2×2 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 . . . . . . . 1 . 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1948	4..2..1......2.1	4132231414233241	Basic 4x4 Sudoku 1948	Easy Sudoku	Each row, column, and 2×2 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 . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1949	3..2.......121.3	3412123443212143	Basic 4x4 Sudoku 1949	Easy Sudoku	Each row, column, and 2×2 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 1 . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1950	..13.1...231...4	2413314242311324	Basic 4x4 Sudoku 1950	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	. . 1 3 . 1 . . . 2 3 1 . . . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1951	1......42..3....	1432321421434321	Basic 4x4 Sudoku 1951	Easy Sudoku	Each row, column, and 2×2 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_1952	4.21.2.3.1..3..2	4321124321343412	Basic 4x4 Sudoku 1952	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	4 . 2 1 . 2 . 3 . 1 . . 3 . . 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1953	......12..311.24	2143341242311324	Basic 4x4 Sudoku 1953	Easy Sudoku	Each row, column, and 2×2 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 . 2 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1954	.3..4.3.12.3..2.	2314413212433421	Basic 4x4 Sudoku 1954	Easy Sudoku	Each row, column, and 2×2 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 2 . 3 . . 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1955	..3.1.....4.2...	4231132431422413	Basic 4x4 Sudoku 1955	Easy Sudoku	Each row, column, and 2×2 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 . 2 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1956	...42.311.4..31.	3124243112434312	Basic 4x4 Sudoku 1956	Easy Sudoku	Each row, column, and 2×2 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 1 . 4 . . 3 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1957	32..1.....2....1	3214143241232341	Basic 4x4 Sudoku 1957	Easy Sudoku	Each row, column, and 2×2 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 . . . . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1958	.2..1.3...2....1	3214143241232341	Basic 4x4 Sudoku 1958	Easy Sudoku	Each row, column, and 2×2 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 . . . 2 . . . . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1959	2.3.1..4..1.....	2431132442133142	Basic 4x4 Sudoku 1959	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	2 . 3 . 1 . . 4 . . 1 . . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1960	2..4.1..1.323..1	2314412314323241	Basic 4x4 Sudoku 1960	Easy Sudoku	Each row, column, and 2×2 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 . 3 2 3 . . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1961	.3...143......12	4321214312343412	Basic 4x4 Sudoku 1961	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	. 3 . . . 1 4 3 . . . . . . 1 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1962	.2.....23..1...3	1234431234212143	Basic 4x4 Sudoku 1962	Easy Sudoku	Each row, column, and 2×2 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 . . . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1963	24.3..2...4.413.	2413132432414132	Basic 4x4 Sudoku 1963	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	2 4 . 3 . . 2 . . . 4 . 4 1 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1964	...4.3.2...1.2.3	2134431234211243	Basic 4x4 Sudoku 1964	Easy Sudoku	Each row, column, and 2×2 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 . 2 . 3	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1965	21...3.1.2..1..2	2143432132141432	Basic 4x4 Sudoku 1965	Easy Sudoku	Each row, column, and 2×2 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 . 2 . . 1 . . 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1966	.1...41.1.43..2.	2134341212434321	Basic 4x4 Sudoku 1966	Easy Sudoku	Each row, column, and 2×2 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 . . 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1967	.342.43...13..2.	1342243142133124	Basic 4x4 Sudoku 1967	Easy Sudoku	Each row, column, and 2×2 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 3 . . . 1 3 . . 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1968	1..4..3...4.2...	1324423131422413	Basic 4x4 Sudoku 1968	Easy Sudoku	Each row, column, and 2×2 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	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1969	..13...213...23.	2413314213244231	Basic 4x4 Sudoku 1969	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	. . 1 3 . . . 2 1 3 . . . 2 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1970	3...2.4.4..2....	3421214343121234	Basic 4x4 Sudoku 1970	Easy Sudoku	Each row, column, and 2×2 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 . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1971	...14...1....412	2341412312343412	Basic 4x4 Sudoku 1971	Easy Sudoku	Each row, column, and 2×2 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 1 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1972	..32.......3.1..	1432234142133124	Basic 4x4 Sudoku 1972	Easy Sudoku	Each row, column, and 2×2 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	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1973	...32.41.....432	4123234132141432	Basic 4x4 Sudoku 1973	Easy Sudoku	Each row, column, and 2×2 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 3 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1974	..42..13.4...3.4	3142421324311324	Basic 4x4 Sudoku 1974	Easy Sudoku	Each row, column, and 2×2 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 . . . 3 . 4	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1975	.12.....2..3.342	3124423124131342	Basic 4x4 Sudoku 1975	Easy Sudoku	Each row, column, and 2×2 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 . . 3 . 3 4 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1976	21....12...443.1	2143341212344321	Basic 4x4 Sudoku 1976	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	2 1 . . . . 1 2 . . . 4 4 3 . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1977	2....3....1.3142	2431132442133142	Basic 4x4 Sudoku 1977	Easy Sudoku	Each row, column, and 2×2 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 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1978	2..4.3...24.1...	2134431232411423	Basic 4x4 Sudoku 1978	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	2 . . 4 . 3 . . . 2 4 . 1 . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1979	4..1.3..314.....	4231132431422413	Basic 4x4 Sudoku 1979	Easy Sudoku	Each row, column, and 2×2 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 . . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1980	.1..3.....34...1	2143341212344321	Basic 4x4 Sudoku 1980	Easy Sudoku	Each row, column, and 2×2 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 . . . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1981	4231.1...3.2..1.	4231312413422413	Basic 4x4 Sudoku 1981	Easy Sudoku	Each row, column, and 2×2 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 . 1 . . . 3 . 2 . . 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1982	321...2.......42	3214412324311342	Basic 4x4 Sudoku 1982	Easy Sudoku	Each row, column, and 2×2 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 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1983	134....1.4....2.	1342423124133124	Basic 4x4 Sudoku 1983	Easy Sudoku	Each row, column, and 2×2 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 . . . . 1 . 4 . . . . 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1984	...223411....2..	4132234114233214	Basic 4x4 Sudoku 1984	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	. . . 2 2 3 4 1 1 . . . . 2 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1985	..3..2..231.1.2.	4132324123141423	Basic 4x4 Sudoku 1985	Easy Sudoku	Each row, column, and 2×2 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 1 . 1 . 2 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1986	1..24.1..12.2.3.	1342421331242431	Basic 4x4 Sudoku 1986	Easy Sudoku	Each row, column, and 2×2 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 . . 1 2 . 2 . 3 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1987	..23...43..1.1..	1423231432414132	Basic 4x4 Sudoku 1987	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	. . 2 3 . . . 4 3 . . 1 . 1 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1988	4..2...124......	4132324124131324	Basic 4x4 Sudoku 1988	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	4 . . 2 . . . 1 2 4 . . . . . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1989	2.4....2.3.4....	2143341213244231	Basic 4x4 Sudoku 1989	Easy Sudoku	Each row, column, and 2×2 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	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1990	....4.3......2.1	2314413214233241	Basic 4x4 Sudoku 1990	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	. . . . 4 . 3 . . . . . . 2 . 1	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1991	.2131..42....1.2	4213132424313142	Basic 4x4 Sudoku 1991	Easy Sudoku	Each row, column, and 2×2 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 . . . . 1 . 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1992	.1....3..21....2	3124243142131342	Basic 4x4 Sudoku 1992	Easy Sudoku	Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.	. 1 . . . . 3 . . 2 1 . . . . 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1993	1....4.2.......4	1243341243212134	Basic 4x4 Sudoku 1993	Easy Sudoku	Each row, column, and 2×2 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_1994	.24.413....313..	3241413224131324	Basic 4x4 Sudoku 1994	Easy Sudoku	Each row, column, and 2×2 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 . . . . 3 1 3 . .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1995	.3...243...4..1.	4321124321343412	Basic 4x4 Sudoku 1995	Easy Sudoku	Each row, column, and 2×2 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 . . 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1996	4.....1....1.342	4123321424311342	Basic 4x4 Sudoku 1996	Easy Sudoku	Each row, column, and 2×2 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 2	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1997	1.2.4..3..3.314.	1324421324313142	Basic 4x4 Sudoku 1997	Easy Sudoku	Each row, column, and 2×2 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 . 3 1 4 .	4	4	None	Complete the sudoku board based on the rules and visual elements.
4x4_sudoku_1998	2........34...3.	2413312413424231	Basic 4x4 Sudoku 1998	Easy Sudoku	Each row, column, and 2×2 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_1999	4.2..3.1.2...41.	4123234112343412	Basic 4x4 Sudoku 1999	Easy Sudoku	Each row, column, and 2×2 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 1 .	4	4	None	Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1900

4.....3.342..2.3

4312213434211243

Basic 4x4 Sudoku 1900

Easy Sudoku

Each row, column, and 2×2 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 . . 2 . 3

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1901

.2.......31..12.

3241143223144123

Basic 4x4 Sudoku 1901

Easy Sudoku

Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.

. 2 . . . . . . . 3 1 . . 1 2 .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1902

43.12.3..4..1.4.

4321213434121243

Basic 4x4 Sudoku 1902

Easy Sudoku

Each row, column, and 2×2 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 . . 1 . 4 .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1903

23.11.....14..32

2341142332144132

Basic 4x4 Sudoku 1903

Easy Sudoku

Each row, column, and 2×2 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 . . . . . 1 4 . . 3 2

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1904

4.....1..3.1...3

4132321423411423

Basic 4x4 Sudoku 1904

Easy Sudoku

Each row, column, and 2×2 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

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1905

..4.2.3.3....2..

1342243131244213

Basic 4x4 Sudoku 1905

Easy Sudoku

Each row, column, and 2×2 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 . 3 . . . . 2 . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1906

...4...3.23.1...

3124241342311342

Basic 4x4 Sudoku 1906

Easy Sudoku

Each row, column, and 2×2 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 . 1 . . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1907

41...3.434......

4132231434211243

Basic 4x4 Sudoku 1907

Easy Sudoku

Each row, column, and 2×2 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 . 4 3 4 . . . . . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1908

..31...21..3..1.

4231314214232314

Basic 4x4 Sudoku 1908

Easy Sudoku

Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.

. . 3 1 . . . 2 1 . . 3 . . 1 .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1909

.21.1.4..12.....

4213134231242431

Basic 4x4 Sudoku 1909

Easy Sudoku

Each row, column, and 2×2 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 . . 1 2 . . . . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1910

.2..4..2...41...

3241413223141423

Basic 4x4 Sudoku 1910

Easy Sudoku

Each row, column, and 2×2 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 . . . 4 1 . . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1911

43...1.31..4.41.

4321214312343412

Basic 4x4 Sudoku 1911

Easy Sudoku

Each row, column, and 2×2 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 1 .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1912

4..31....42.21.4

4213134234212134

Basic 4x4 Sudoku 1912

Easy Sudoku

Each row, column, and 2×2 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 . 2 1 . 4

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1913

3...1..241....1.

3241143241232314

Basic 4x4 Sudoku 1913

Easy Sudoku

Each row, column, and 2×2 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 1 . . . . 1 .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1914

..3....1.143.41.

1234432121433412

Basic 4x4 Sudoku 1914

Easy Sudoku

Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.

. . 3 . . . . 1 . 1 4 3 . 4 1 .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1915

.3.....4..13...2

4321123424133142

Basic 4x4 Sudoku 1915

Easy Sudoku

Each row, column, and 2×2 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

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1916

....41.23..4.42.

2341413232141423

Basic 4x4 Sudoku 1916

Easy Sudoku

Each row, column, and 2×2 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 2 .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1917

.241.42...14....

3241142323144132

Basic 4x4 Sudoku 1917

Easy Sudoku

Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.

. 2 4 1 . 4 2 . . . 1 4 . . . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1918

.34......4..2...

1342421334212134

Basic 4x4 Sudoku 1918

Easy Sudoku

Each row, column, and 2×2 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 . . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1919

4...3..223..1.23

4231314223141423

Basic 4x4 Sudoku 1919

Easy Sudoku

Each row, column, and 2×2 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 3 . . 1 . 2 3

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1920

.31.4..2.4.1....

2314413234211243

Basic 4x4 Sudoku 1920

Easy Sudoku

Each row, column, and 2×2 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 . . 2 . 4 . 1 . . . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1921

2..1.34...1..123

2431134232144123

Basic 4x4 Sudoku 1921

Easy Sudoku

Each row, column, and 2×2 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 . . 1 2 3

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1922

3.1...3423..4...

3412123423414123

Basic 4x4 Sudoku 1922

Easy Sudoku

Each row, column, and 2×2 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 3 . . 4 . . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1923

4.....3...1.3...

4321123424133142

Basic 4x4 Sudoku 1923

Easy Sudoku

Each row, column, and 2×2 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 . . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1924

.....3...2141.2.

4132234132141423

Basic 4x4 Sudoku 1924

Easy Sudoku

Each row, column, and 2×2 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 1 . 2 .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1925

1...2.3.3.2..2..

1342243131244213

Basic 4x4 Sudoku 1925

Easy Sudoku

Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.

1 . . . 2 . 3 . 3 . 2 . . 2 . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1926

1..32......1.13.

1423231432414132

Basic 4x4 Sudoku 1926

Easy Sudoku

Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.

1 . . 3 2 . . . . . . 1 . 1 3 .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1927

..3..1.41..3.3..

2431312412434312

Basic 4x4 Sudoku 1927

Easy Sudoku

Each row, column, and 2×2 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 . 3 . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1928

..1.....1.4..3.1

3412213412434321

Basic 4x4 Sudoku 1928

Easy Sudoku

Each row, column, and 2×2 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 . . 3 . 1

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1929

....41....21....

2314413234211243

Basic 4x4 Sudoku 1929

Easy Sudoku

Each row, column, and 2×2 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 . . . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1930

4.....4.23....32

4123324123141432

Basic 4x4 Sudoku 1930

Easy Sudoku

Each row, column, and 2×2 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 . . . . 3 2

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1931

..32..14..4.34.1

4132231412433421

Basic 4x4 Sudoku 1931

Easy Sudoku

Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.

. . 3 2 . . 1 4 . . 4 . 3 4 . 1

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1932

2....3.24231....

2413134242313124

Basic 4x4 Sudoku 1932

Easy Sudoku

Each row, column, and 2×2 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 2 3 1 . . . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1933

.1....31..4.4..3

3124243113424213

Basic 4x4 Sudoku 1933

Easy Sudoku

Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.

. 1 . . . . 3 1 . . 4 . 4 . . 3

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1934

43..21431....2..

4321214314323214

Basic 4x4 Sudoku 1934

Easy Sudoku

Each row, column, and 2×2 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 3 1 . . . . 2 . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1935

...24.....23....

3142423114232314

Basic 4x4 Sudoku 1935

Easy Sudoku

Each row, column, and 2×2 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

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1936

....31.4243.....

4213312424311342

Basic 4x4 Sudoku 1936

Easy Sudoku

Each row, column, and 2×2 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 2 4 3 . . . . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1937

...1.32.....2.1.

4231132431422413

Basic 4x4 Sudoku 1937

Easy Sudoku

Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.

. . . 1 . 3 2 . . . . . 2 . 1 .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1938

3....1...324..1.

3241413213242413

Basic 4x4 Sudoku 1938

Easy Sudoku

Each row, column, and 2×2 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 . . 1 .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1939

2.3...2......4.2

2134432112433412

Basic 4x4 Sudoku 1939

Easy Sudoku

Each row, column, and 2×2 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 . 2

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1940

243.....3..2....

2431132431424213

Basic 4x4 Sudoku 1940

Easy Sudoku

Each row, column, and 2×2 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 . . . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1941

1.3..34..1.442..

1432234131244213

Basic 4x4 Sudoku 1941

Easy Sudoku

Each row, column, and 2×2 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 . . 1 . 4 4 2 . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1942

....3..423.1142.

4132321423411423

Basic 4x4 Sudoku 1942

Easy Sudoku

Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.

. . . . 3 . . 4 2 3 . 1 1 4 2 .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1943

...4.3...1..3.1.

1234432121433412

Basic 4x4 Sudoku 1943

Easy Sudoku

Each row, column, and 2×2 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

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1944

.4.33..4.3....32

1423321423414132

Basic 4x4 Sudoku 1944

Easy Sudoku

Each row, column, and 2×2 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 . 3 . . . . 3 2

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1945

..131....231...2

2413132442313142

Basic 4x4 Sudoku 1945

Easy Sudoku

Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.

. . 1 3 1 . . . . 2 3 1 . . . 2

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1946

..4.423.312..4..

1342423131242413

Basic 4x4 Sudoku 1946

Easy Sudoku

Each row, column, and 2×2 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 . 3 1 2 . . 4 . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1947

243.3.......1.2.

2431314242131324

Basic 4x4 Sudoku 1947

Easy Sudoku

Each row, column, and 2×2 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 . . . . . . . 1 . 2 .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1948

4..2..1......2.1

4132231414233241

Basic 4x4 Sudoku 1948

Easy Sudoku

Each row, column, and 2×2 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 . 1

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1949

3..2.......121.3

3412123443212143

Basic 4x4 Sudoku 1949

Easy Sudoku

Each row, column, and 2×2 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 1 . 3

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1950

..13.1...231...4

2413314242311324

Basic 4x4 Sudoku 1950

Easy Sudoku

Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.

. . 1 3 . 1 . . . 2 3 1 . . . 4

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1951

1......42..3....

1432321421434321

Basic 4x4 Sudoku 1951

Easy Sudoku

Each row, column, and 2×2 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

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1952

4.21.2.3.1..3..2

4321124321343412

Basic 4x4 Sudoku 1952

Easy Sudoku

Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.

4 . 2 1 . 2 . 3 . 1 . . 3 . . 2

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1953

......12..311.24

2143341242311324

Basic 4x4 Sudoku 1953

Easy Sudoku

Each row, column, and 2×2 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 . 2 4

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1954

.3..4.3.12.3..2.

2314413212433421

Basic 4x4 Sudoku 1954

Easy Sudoku

Each row, column, and 2×2 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 2 . 3 . . 2 .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1955

..3.1.....4.2...

4231132431422413

Basic 4x4 Sudoku 1955

Easy Sudoku

Each row, column, and 2×2 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 . 2 . . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1956

...42.311.4..31.

3124243112434312

Basic 4x4 Sudoku 1956

Easy Sudoku

Each row, column, and 2×2 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 1 . 4 . . 3 1 .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1957

32..1.....2....1

3214143241232341

Basic 4x4 Sudoku 1957

Easy Sudoku

Each row, column, and 2×2 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 . . . . 1

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1958

.2..1.3...2....1

3214143241232341

Basic 4x4 Sudoku 1958

Easy Sudoku

Each row, column, and 2×2 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 . . . 2 . . . . 1

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1959

2.3.1..4..1.....

2431132442133142

Basic 4x4 Sudoku 1959

Easy Sudoku

Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.

2 . 3 . 1 . . 4 . . 1 . . . . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1960

2..4.1..1.323..1

2314412314323241

Basic 4x4 Sudoku 1960

Easy Sudoku

Each row, column, and 2×2 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 . 3 2 3 . . 1

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1961

.3...143......12

4321214312343412

Basic 4x4 Sudoku 1961

Easy Sudoku

Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.

. 3 . . . 1 4 3 . . . . . . 1 2

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1962

.2.....23..1...3

1234431234212143

Basic 4x4 Sudoku 1962

Easy Sudoku

Each row, column, and 2×2 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 . . . 3

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1963

24.3..2...4.413.

2413132432414132

Basic 4x4 Sudoku 1963

Easy Sudoku

Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.

2 4 . 3 . . 2 . . . 4 . 4 1 3 .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1964

...4.3.2...1.2.3

2134431234211243

Basic 4x4 Sudoku 1964

Easy Sudoku

Each row, column, and 2×2 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 . 2 . 3

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1965

21...3.1.2..1..2

2143432132141432

Basic 4x4 Sudoku 1965

Easy Sudoku

Each row, column, and 2×2 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 . 2 . . 1 . . 2

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1966

.1...41.1.43..2.

2134341212434321

Basic 4x4 Sudoku 1966

Easy Sudoku

Each row, column, and 2×2 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 . . 2 .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1967

.342.43...13..2.

1342243142133124

Basic 4x4 Sudoku 1967

Easy Sudoku

Each row, column, and 2×2 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 3 . . . 1 3 . . 2 .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1968

1..4..3...4.2...

1324423131422413

Basic 4x4 Sudoku 1968

Easy Sudoku

Each row, column, and 2×2 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

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1969

..13...213...23.

2413314213244231

Basic 4x4 Sudoku 1969

Easy Sudoku

Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.

. . 1 3 . . . 2 1 3 . . . 2 3 .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1970

3...2.4.4..2....

3421214343121234

Basic 4x4 Sudoku 1970

Easy Sudoku

Each row, column, and 2×2 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 . . . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1971

...14...1....412

2341412312343412

Basic 4x4 Sudoku 1971

Easy Sudoku

Each row, column, and 2×2 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 1 2

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1972

..32.......3.1..

1432234142133124

Basic 4x4 Sudoku 1972

Easy Sudoku

Each row, column, and 2×2 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

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1973

...32.41.....432

4123234132141432

Basic 4x4 Sudoku 1973

Easy Sudoku

Each row, column, and 2×2 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 3 2

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1974

..42..13.4...3.4

3142421324311324

Basic 4x4 Sudoku 1974

Easy Sudoku

Each row, column, and 2×2 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 . . . 3 . 4

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1975

.12.....2..3.342

3124423124131342

Basic 4x4 Sudoku 1975

Easy Sudoku

Each row, column, and 2×2 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 . . 3 . 3 4 2

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1976

21....12...443.1

2143341212344321

Basic 4x4 Sudoku 1976

Easy Sudoku

Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.

2 1 . . . . 1 2 . . . 4 4 3 . 1

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1977

2....3....1.3142

2431132442133142

Basic 4x4 Sudoku 1977

Easy Sudoku

Each row, column, and 2×2 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 2

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1978

2..4.3...24.1...

2134431232411423

Basic 4x4 Sudoku 1978

Easy Sudoku

Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.

2 . . 4 . 3 . . . 2 4 . 1 . . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1979

4..1.3..314.....

4231132431422413

Basic 4x4 Sudoku 1979

Easy Sudoku

Each row, column, and 2×2 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 . . . . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1980

.1..3.....34...1

2143341212344321

Basic 4x4 Sudoku 1980

Easy Sudoku

Each row, column, and 2×2 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 . . . 1

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1981

4231.1...3.2..1.

4231312413422413

Basic 4x4 Sudoku 1981

Easy Sudoku

Each row, column, and 2×2 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 . 1 . . . 3 . 2 . . 1 .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1982

321...2.......42

3214412324311342

Basic 4x4 Sudoku 1982

Easy Sudoku

Each row, column, and 2×2 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 2

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1983

134....1.4....2.

1342423124133124

Basic 4x4 Sudoku 1983

Easy Sudoku

Each row, column, and 2×2 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 . . . . 1 . 4 . . . . 2 .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1984

...223411....2..

4132234114233214

Basic 4x4 Sudoku 1984

Easy Sudoku

Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.

. . . 2 2 3 4 1 1 . . . . 2 . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1985

..3..2..231.1.2.

4132324123141423

Basic 4x4 Sudoku 1985

Easy Sudoku

Each row, column, and 2×2 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 1 . 1 . 2 .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1986

1..24.1..12.2.3.

1342421331242431

Basic 4x4 Sudoku 1986

Easy Sudoku

Each row, column, and 2×2 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 . . 1 2 . 2 . 3 .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1987

..23...43..1.1..

1423231432414132

Basic 4x4 Sudoku 1987

Easy Sudoku

Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.

. . 2 3 . . . 4 3 . . 1 . 1 . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1988

4..2...124......

4132324124131324

Basic 4x4 Sudoku 1988

Easy Sudoku

Each row, column, and 2×2 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_1989

2.4....2.3.4....

2143341213244231

Basic 4x4 Sudoku 1989

Easy Sudoku

Each row, column, and 2×2 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_1990

....4.3......2.1

2314413214233241

Basic 4x4 Sudoku 1990

Easy Sudoku

Each row, column, and 2×2 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

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1991

.2131..42....1.2

4213132424313142

Basic 4x4 Sudoku 1991

Easy Sudoku

Each row, column, and 2×2 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 . . . . 1 . 2

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1992

.1....3..21....2

3124243142131342

Basic 4x4 Sudoku 1992

Easy Sudoku

Each row, column, and 2×2 subgrid must contain all digits from 1 to 4 exactly once. Digits cannot be repeated within any row, column, or 2×2 subgrid.

. 1 . . . . 3 . . 2 1 . . . . 2

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1993

1....4.2.......4

1243341243212134

Basic 4x4 Sudoku 1993

Easy Sudoku

Each row, column, and 2×2 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

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1994

.24.413....313..

3241413224131324

Basic 4x4 Sudoku 1994

Easy Sudoku

Each row, column, and 2×2 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 . . . . 3 1 3 . .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1995

.3...243...4..1.

4321124321343412

Basic 4x4 Sudoku 1995

Easy Sudoku

Each row, column, and 2×2 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 . . 1 .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1996

4.....1....1.342

4123321424311342

Basic 4x4 Sudoku 1996

Easy Sudoku

Each row, column, and 2×2 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 2

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1997

1.2.4..3..3.314.

1324421324313142

Basic 4x4 Sudoku 1997

Easy Sudoku

Each row, column, and 2×2 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 . 3 1 4 .

4

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1998

2........34...3.

2413312413424231

Basic 4x4 Sudoku 1998

Easy Sudoku

Each row, column, and 2×2 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

None

Complete the sudoku board based on the rules and visual elements.

4x4_sudoku_1999

4.2..3.1.2...41.

4123234112343412

Basic 4x4 Sudoku 1999

Easy Sudoku

Each row, column, and 2×2 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 1 .

4

None

Complete the sudoku board based on the rules and visual elements.