Samurai Sudoku
Play free samurai sudoku online: five overlapping 9×9 grids that share their corner boxes. A tougher twist on classic sudoku, playable in any browser with no download.
How to play Samurai Sudoku
- Samurai sudoku joins five standard 9×9 sudoku grids in a plus shape, with the four outer grids overlapping the central grid at their corner 3×3 boxes.
- Each of the five grids must independently follow normal sudoku rules: every row, column, and 3×3 box contains the digits 1–9 exactly once.
- Shared corner boxes must satisfy both grids at once, so progress in one grid unlocks deductions in another.
- Every puzzle is generated from a seed, so a given puzzle number is always the same — and you can roll a brand-new random puzzle any time.