The number of cells in a Sudoku puzzle is 81. No more. No less.
In contrast, Swirldoku puzzles can be constructed with 27, or 54, or 81, or 108, or any multiple of 27 cells!
Here are some samples:
In contrast, Swirldoku puzzles can be constructed with 27, or 54, or 81, or 108, or any multiple of 27 cells!
Here are some samples:
27 cells
81 cells
54 cells
108 cells
135 cells
162 cells
