Solve puzzles with a 9x9 grid and 3x3 sub grids. Enter numbers 1 through 9 in each cell. Complete puzzles using logic without guessing. Access unlimited puzzles. Track progress across multiple difficulty levels.
Allows users to play a logic-based puzzle game. Fill a 9x9 grid with numbers 1 to 9. Each row, column, and 3x3 subregion contains unique digits. Track mistakes and lose if exceeding three errors.
Play with four difficulty levels and tutorial guidance. Solve puzzles using notes, undo/redo, and auto-note features. Color squares with two colors for advanced strategies. Check for errors manually or automatically.
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.
The app presents a logic puzzle for touch screens. Users draw rails to create a working monorail system, connecting all stations to form a single loop.
Allows users to input puzzles via image or keypad. Features include solving entire puzzles or individual numbers, creating and printing puzzles, and erasing last entry by shaking.
"Play puzzles with difficulty levels from easy to advanced. Fill grids with numbers 1-9. Get hints and check progress. Customize grid size and themes."
Play with five overlapping 9x9 grids. Solve puzzles following standard rules. Choose from five difficulty levels and various types like Gattai and Butterfly. Use the Hint feature to auto-fill the board with non-conflicting numbers.
"Play and solve puzzles with adjustable difficulty levels. Customize grid size and pencil marks. Track progress and restart puzzles. Share completed grids via email or social media."
The app presents arithmetic and logic puzzles based on Kendoku and KenKen rules. It offers games in six grid formats, from 4x4 to 9x9, with varying difficulty levels.
Solve puzzles with varying grid sizes and difficulty levels. Input numbers to fill grids without repeating in rows or columns. Use arithmetic operations to complete puzzle sections. Track progress and restart puzzles.