Solve puzzles with 4 difficulty levels and daily challenges. Use notes, hints, and undos. Customize with colors. Export puzzles as PDF via email. Features symmetric designs and advanced generation algorithm. Compatible with VoiceOver.
Play with thousands of free puzzles. Solve grids by filling numbers 1-9. Take notes that update automatically as you progress. Adjust difficulty levels and track progress. Share completed puzzles with friends.
Provides puzzles with varying difficulty levels. Users can select grids, input numbers, and check for errors. Features include hint assistance, puzzle saving, and adjustable difficulty settings.
Play puzzles in a 9x9 grid with adjustable difficulty. Challenge friends or players online in competitive duels. Receive adaptive hints and notes during gameplay. Save progress and play offline without an internet connection.
