Kaku - Shikaku Puzzle

A new Puzzle of the Day, every day. Divide the grid into rectangles, keep your streak alive, and unwind with calm, handcrafted logic.

Kaku is a calm, elegant logic puzzle. Divide the grid into rectangles, where every rectangle holds exactly one number equal to its area. One solution, pure deduction, no luck.

A NEW PUZZLE EVERY DAY Solve the Puzzle of the Day, build a daily streak, and track your best times. Your progress syncs across your devices with iCloud.

INFINITE PUZZLES Generate endless puzzles across five board sizes and five difficulty tiers, from gentle warmups to expert brain benders. Every puzzle is guaranteed to have a single, logical solution.

PLAY YOUR WAY

• Draw rectangles with a simple drag
• Undo, hints, and an optional mistake limit
• Light and dark themes with selectable accent colors
• Soft haptics and sound you can turn off anytime
• Fully playable offline

DESIGNED TO RELAX Warm paper tones, gentle glass surfaces, and a quiet, focused layout. No countdown forcing you, no clutter, no ads getting in the way. Just you and the grid.

COMPETE AND ACHIEVE Climb the Game Center leaderboards for daily times and longest streaks, and unlock achievements as your streak grows.

Whether you have two minutes or twenty, Kaku is a thoughtful way to sharpen your mind and slow down.

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