Shikaku: Logic Number Puzzle

Split the grid into rectangles — one number, one rectangle. A calm, offline logic puzzle you can pick up anytime. New free challenge every day!

Shikaku is a relaxing logic puzzle with one simple rule and endless depth: divide the grid into rectangles so that each rectangle contains exactly one number — and that number equals the rectangle's area.

Easy to learn, hard to put down. No timers forcing you (unless you want them), no clutter — just you, the grid, and that satisfying click when everything fits.

WHY YOU'LL LOVE IT • One rule, infinite puzzles — every board has a single, logical solution • Zen mode: solve at your own pace, zero pressure • Time Trial: race the clock for a real challenge • Daily Challenge: a fresh puzzle every day, resets at 9 AM your time • 100% offline — play on a plane, a subway, anywhere • Clean, cozy design that's easy on the eyes • Handmade sound and a calm soundtrack • Unlock color themes and pixel avatars as you progress

HOW TO PLAY

1. Tap and drag to draw a rectangle
2. Each rectangle must hold exactly one number
3. The number = how many cells the rectangle covers
4. Fill the whole board with no gaps or overlaps — solved!

If you love Sudoku, Nonogram (Picross), Kakuro or other Japanese logic and number puzzles, Shikaku will be your new favorite brain teaser.

Free to play, with optional Shikaku Premium.

SHIKAKU PREMIUM (optional) • Remove all ads and play without interruptions • Free hints on every level — no coins needed (up to 2 per level) • Support a small studio making calm puzzle games with care

Subscriptions auto-renew unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your account settings.

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Questions or ideas? We read every message: shikaku@ignite-web-studio.com