Solve puzzles by filling 9×9 grids with digits 1-9. Choose from four difficulty levels. Store notes for possible numbers. Use hints to fill missing digits. Complete daily challenges. Clear grids when all numbers are placed.
Solve puzzles in 6x6, 9x9, and jigsaw formats. Access thousands of levels with varying difficulty. Track progress and replay previous games. Sync puzzles across devices.
Explore a -themed world to learn about prehistoric creatures. Tap to interact with T-rex, Pterodactyl, Spinosaurus, and Dilophosaurus. Discover their habitats and characteristics through animated scenes.
Solve sudoku puzzles by filling grids with numbers following sudoku rules and region sum constraints. Enter notes with a dedicated key. Adjust puzzle difficulty and track progress across multiple games.
Play Sudoku with puzzles of varying difficulty: easy, medium, hard, and expert. Solve grids with hints and track progress through game center achievements and leaderboards. Share scores and compete globally. Export puzzles and customize backgrounds.
Play with pencil and interface. Use Apple Pencil for writing and erasing. Auto-fill notes on demand. Solve puzzles with interactive solver mode. Add pencil marks and highlights. Check for errors with one click.