Shikaku: Grid Logic Puzzle
Draw Rectangles, Solve Grids
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
2.1
June 6, 2026
Thanks for playing Shikaku! - Fixed board zoom/sizing issues on some larger levels. - Added new levels and themes. - Added a relaxing Squishness setting for tile animations. - Added a What’s New popup with 10 free hints. - Improved daily puzzle leaderboard/rank display. - Added a game timer that starts when you touch the first tile. - Improved ad timing and rewarded hint behavior.
MoreIn-App Purchases
$0.99
Life Boost
Get 1 extra life for more puzzle attempts.
Developer apps
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.