Shikaku: Rectangle Logic

Find the rectangle hidden in every number.

Shikaku is a clean logic puzzle about dividing a grid into rectangles. Each rectangle contains exactly one number and covers that many cells. Fit them together without gaps or overlaps to solve the board.

HOW TO PLAY
• Use each number exactly once
• Make every rectangle's area match its number
• Cover the whole grid

KEEP SOLVING
• Explore 900 puzzles across Easy, Medium, and Hard
• Come back for a fresh daily challenge and track your streak
• Learn with guided practice; use hints and undo when you need them
• Play offline in light or dark appearance
• Start free; one optional Premium purchase unlocks the full collection

One rectangle often reveals the next. Download Shikaku and find your first one.