Kaku: Shikaku Logic Puzzle

Divide the grid into rectangles. There is just one rule — each rectangle holds exactly one number, and its area equals that number.

Drag to draw a rectangle. Fill every cell and the puzzle is solved. Ten seconds to learn, much longer to master.

■ No rush, ever
· No timers · No mistake limits · No lives
· Ads never interrupt you mid-puzzle
· Soft colors and calm music, easy on the eyes

■ 2,000 handcrafted puzzles
· Easy 5×5 · Normal 7×7 · Hard 9×9 · Expert 12×12
· 500 puzzles per difficulty, every one with a single verified solution
· Guessing will not get you through. Pure logic always will

■ A new challenge every day
· Daily Challenge unlocks a fresh puzzle each date
· Complete a full month to earn that month's trophy
· Track your streak on the calendar

■ Watch your mind grow
· Brain rank rises as you solve — six tiers from Beginner to Legend
· Spatial, Logic and Focus tracked separately
· See your weekly growth at a glance

■ When you get stuck
· A hint opens one rectangle to get you moving again
· Tap any placed piece to remove it
· Clear feedback tells you exactly why a move is not allowed

■ Made for you if
· You want something quiet to think about before bed
· You enjoy Sudoku, Nonograms or Picross
· You are tired of games that rush you

Available in 14 languages. Plays fully offline.

Find your quiet hour of logic in Kaku.