Free
In-App Purchases
Rating summary
About
Slice the grid into rectangles. Every rectangle must hold exactly one number — and that number must equal its area.
Shikaku is a Japanese geometry-logic puzzle with a single elegant rule. The numbers are the anchors; everything between them is your decision. A 6 can become a 1×6 strip, a 2×3 block or a 3×2 slab — but only one arrangement covers the grid perfectly, and finding it is the whole pleasure.
Every board has exactly ONE solution. You never guess: a number whose rectangle could only fit one way is a gift, and each placed rectangle shrinks the choices around it.
FEATURES
• 150 hand-verified levels from 5×5 to 12×12
• Live area counter while you drag — 3×4 = 12 before you let go
• Completed rectangles tint by size; the board becomes art
• Free daily puzzle every day, with a streak to protect
• Hints, undo, shake-on-error and a timer that pauses when you leave
• Endless random grids and a 30-day daily archive with Premium
• Play offline. No accounts, no ads.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://dijitalpilot.com/privacy
Show more
What's New in Shikaku
1.1
September 24, 2026
Added French subscription descriptions and refreshed the French store page.
3
Subscriptions & In-App Purchases
Monthly Premium
All puzzles and unlimited hints, billed monthly.
$3.991 Month




