12x12
Classic Sudoku
Big Sudoku 12x12
12x12 big sudoku is a larger, tougher version of classic sudoku. Digits 1 to 12, played across twelve 4x3 boxes.
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Big Sudoku 12x12 rules
- 1Rule 1
The grid has 12 rows, 12 columns, and twelve 4x3 boxes.
- 2Rule 2
Every row and column contains the digits 1-12 exactly once.
- 3Rule 3
Every 4x3 box also contains the digits 1-12 with no repeats.
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