Solve puzzles with varying difficulty levels. Input numbers manually or transfer from newspapers. Use pencil and paper style tools for notes and hints. Track possible numbers with a ball of string. Access expert-level hints like Swordfish.
Play with adjustable difficulty levels and customizable puzzle settings. Use hints, error highlighting, and note-taking features. Track personal times and compare with others. Solve puzzles on a clean, distraction-free interface.
The app is a logic-based number-placement puzzle game. It offers four difficulty levels, hints, and a memo mode to assist players in completing the 9x9 grid.
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.
Solve classic and 35+ including Killer, Diagonal, and Sandwich . Customize difficulty levels. Track progress and review solutions. Share puzzles via social media.
Solve puzzles by placing on a grid based on surrounding numbers. Complete -based challenges with increasing difficulty. Track progress and unlock new puzzles. Share solutions and compete with other players.
Allows users to play logic-based puzzles with varying difficulty levels. Fill 9x9 grids with numbers 1-9 ensuring no duplicates in rows, columns, or 3x3 blocks. Solve puzzles with pre-filled cells. No ads or subscriptions.