Kaku - Shikaku Puzzle

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.

COLLECT YOUR DAILIES Every Daily you solve becomes a collectible stamp in a monthly album. Finish in the day's top three and your stamp is minted in gold, silver or bronze foil. Miss a day and its slot stays empty for good.

PLAY WITH FRIENDS Challenge a friend to beat your time, or race live matches round by round with a shared code. Prefer no pressure? Own-pace matches let everyone play their rounds whenever they like.

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 assists you control
• Soft haptics and sound you can turn off anytime
• Fully playable offline

MAKE IT YOURS Seven hand-tuned themes retone the whole board, in light and dark, each with its own matching app icon.

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, tiers and longest streaks, and unlock achievements as you go.

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

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