MySudoku

Play, solve and write Sudoku puzzles. Hundreds of boards are included, and you can create your own. Clean, streamlined interface requiring minimal typing.

Features:

Pencil marks calculator (automatic or manual).

Hint engine supporting standard sudoku patterns (singles, pairs, triples, hidden and locked candidates, X-Wings, nice loops, forcing chains and more).

Unlimited undo.

Brute-force solver.

Now also available: MySudoku PRO, including a thousand new puzzles!