10 x 10, 12 x 12, 16 x 16
The program can solve the puzzles with the 10 x 10 grid (the subgrids' size is 5 x 2), with the 12 x 12 grid (the subgrids' size is 4 x 3) and with the 16 x 16 grid (the subgrids' size is 4 x 4).
The formats of sudoku files:
- S10 - the puzzle with the 10 x 10 grid;
- S12 - the puzzle with the 12 x 12 grid;
- S16 - the puzzle with the 16 x 16 grid.