You can now create a Today Sudoku account! Save partially completed questions, switch between devices, track your progress through archives, and record your puzzles solving time.
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This site ensures that all the sudoku puzzles provided have a unique solution. If you find a problem with multiple solutions, please pay attention to the additional rules of the puzzle.

Gattai-3

Gattai is a Japanese word meaning merged or fused; this term is used for overlapping sudoku. A number after the word "Gattai" indicates how many 9 x 9 sudokus are in the puzzle .