- 12×12 Sudoku is played on a 12×12 grid, which consists of twelve rows and twelve columns.
- The objective is to fill each cell in the grid with a number from 1 to 9 and the letters A, B, and C.
- Each row, column, and 4×3 box should contain every number from 1 to 9 and the letters A, B, and C exactly once.
- The puzzle starts with some numbers already filled in as “clues.”
- To solve the puzzle, you must use logical deduction and eliminate possibilities to determine the correct number or letter for each cell.
- No number or letter can be repeated in the same row, column, or 4×3 box.
- The same rules as in traditional Sudoku apply, but with the numbers 1-9 and the letters A, B, and C.