theShikaku: Number Puzzle Game

Challenge your mind with Shikaku, the classic Japanese logic puzzle with tactile claymorphic visuals, relaxing acoustics, and infinite replayability.

Shikaku (四角に切れ, Shikaku ni kire — "cut into squares") is a beloved Japanese pencil puzzle designed to train spatial reasoning, deduction, and numerical logic.

HOW TO PLAY:
1. Divide the grid into rectangles and squares by dragging across the board.
2. Each rectangle must contain exactly one clue number.
3. The number dictates the exact area of the rectangle (e.g., a 6 can be 2×3, 3×2, 1×6, or 6×1).
4. Fill every single cell on the board without overlaps or empty spaces.

FEATURES:
• TACTILE CLAY 3D DESIGN: Enjoy a warm, physical claymorphism interface with pillowy shadows, crisp bevels, and engraved numerals.
• 50 HANDMADE LEVELS: Progress through thoughtfully designed puzzle stages ranging from quick 5×5 grids to sprawling 10×10 logic challenges.
• INFINITE PUZZLE GENERATOR: Generate endless unique-solution puzzles on demand across Easy, Medium, Hard, and Expert difficulty tiers.
• DAILY LOGIC CHALLENGE: A new synchronized puzzle every day. Test your skills and maintain your daily streak.
• RELAXING AUDIO: Meditative ambient music loop and 20+ responsive UI sound effects that make every tap and snap feel satisfying.
• 100% OFFLINE & PRIVATE: No account creation required, no mandatory online connection, and zero personal data collected. Play on the plane, subway, or outdoors.
• ADAPTED FOR TABLETS: Smooth scaling for Android smartphones, foldable devices, and large tablets.

If you enjoy Sudoku, Nonograms, Picross, Kakuro, Slitherlink, or classic math brain teasers, Shikaku is your new daily puzzle obsession.

Download Shikaku today and experience pure Japanese logic puzzles!