🔗 Samurai Sudoku — 5 Grids, 21×21
💡 5 interlocking 9×9 grids. Overlapping zones (dark) belong to 2 grids. Solve corners first!
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# What Is Samurai Sudoku?
5 standard grids overlap in an X formation. Each shares a 3×3 box with the center grid. Solve corner grids first — they're most independent — then use overlap cells to bridge into the center.
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