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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.

Samurai Sudoku

Samurai Sudoku ("Gattai-5") is one of the sudoku variation with overlapping sudoku grids. The puzzle consists of five grids, one in the center and the other 4 overlapping each corner grid of the central one. 5 normal 9x9 Sudoku diagrams are interweaved in a way so that no single diagram can be solved alone, but all 5 diagrams together have a unique solution.