Play 4x4 Sudoku
Open a smaller 4x4 board that uses numbers 1 to 4 for quick beginner-friendly games.
Choose a sudoku grid to play
Pick a board size below to open a dedicated sudoku play page.
Play 9x9 Sudoku
Open the classic 9x9 sudoku board that uses numbers 1 to 9 with full difficulty options.
Play 16x16 Sudoku
Open a larger 16x16 board that uses letters A to P for a more advanced long-form challenge.