Shikaku: Grid Logic Puzzle
Relaxing Number Brain Teaser
About
This logic puzzle game challenges you to draw rectangles around numbers on a grid. Each rectangle must contain only one number, and its area must match that number. Enjoy over 900 puzzles, daily challenges, and relaxing themes for quick brain training.
What's New in Shikaku
2.2
October 24, 2026
Shikaku 2.2 is our biggest update yet: a brand-new calm look and a lot more to play. • A fresh, calm design: soft paper colours, rounded shapes and a new font • Nine themes, including three new dark ones: Dusk, Plum and Onyx • Festival specials for Diwali, Dussehra and Christmas, with sparkles, embers and snow • Every theme now has its own music, with smooth crossfades • New sounds: wooden taps, marimba notes and soft chimes • 50 Game Center achievements to collect • Today's set: the daily puzzle plus four levels, with a progress ring • Gentler streaks with freezes, and a reminder at the time you choose • Drawing feels better: a live size bubble, haptics and flowing combos • Undo and restart are always free • 1,000 levels in 20 packs, with a boss puzzle every 10th level Thanks for playing! Update to get a welcome gift of 3 hints.
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FAQ
What is Shikaku?
Shikaku is a number logic puzzle game where players draw rectangles on a grid. Each rectangle must contain exactly one number, and its area must match that number. It's designed for quick brain-training breaks.
How many puzzles are available in Shikaku?
Shikaku offers over 900 handcrafted logic puzzles. The game also features daily puzzles, providing a continuous stream of new challenges.
Does Shikaku have ads?
Yes, Shikaku contains advertisements. As a free game with in-app purchases, ads are part of the monetization model.
Can I play Shikaku offline?
The provided data does not specify if Shikaku can be played offline. However, daily puzzles and leaderboards may require an internet connection.
What devices does Shikaku support?
Shikaku is supported on iPhone, iPad, and iPod. It is designed for iOS devices.
What is the age rating for Shikaku?
Shikaku has an age rating of 4+, making it suitable for younger players and adults alike.
How often is Shikaku updated?
The latest version of Shikaku was released on June 6, 2026, indicating recent updates. The game was initially released on May 12, 2026.
What makes Shikaku different from Sudoku or Kakuro?
While similar in being logic grid puzzles, Shikaku's core mechanic involves drawing rectangles whose area matches the number within them, offering a unique spatial reasoning challenge compared to Sudoku's number placement or Kakuro's sum-based clues.
