
About
This logic puzzle game challenges you to divide a grid into perfect rectangles. Each rectangle's area must match a number within it, requiring deduction and strategic thinking. Enjoy a progressive campaign with multiple difficulty levels and a clear, ad-free experience.
What's New in Shikaku
3.0
August 6, 2026
What's New in Shikaku 3.0: - 370 grids across First edition and Second Edition, with six themed campaigns in each edition - progression migration and restoration of existing saved games at the correct level - a new scoring system, detailed results, global and per-level statistics, and post-game analysis, without mixing previous scores - three game aids: Counting help, Possible rectangles, and Why it's wrong for an incorrect placement - automatic local saving, unfinished-game restoration, and completed-level replay without losing previous best results - improved portrait layouts on iPhone and iPad, including full-screen grids and compact screens - a redesigned iPhone VoiceOver flow, fast clue navigation, the optional Every Cell mode, and a new grid guide - French and English text, stability fixes, and readability improvements
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FAQ
What is Shikaku?
Shikaku is a logic puzzle game where players divide a grid into perfect rectangles. The area of each rectangle must exactly match a number placed within it, requiring deductive reasoning to solve.
How does Shikaku work?
You start with a grid containing numbers. Your goal is to partition the grid into rectangular sections such that each section's area equals the number it contains. This involves careful planning and logical deduction.
What are the different game modes in Shikaku?
Shikaku features a progressive main campaign, as well as advanced and expert campaigns. It also includes distinct families of levels to offer varied challenges.
Can I save my progress in Shikaku?
Yes, Shikaku automatically saves unfinished games locally on your device. You can resume these games later, even after closing and reopening the application.
Does Shikaku have ads?
No, Shikaku offers a clear and ad-free experience. You can enjoy the puzzles without any interruptions from advertisements.
What devices is Shikaku available on?
Shikaku is available on iPhone and iPad, with a redesigned interface optimized for both portrait and landscape modes on tablets.
What is the price of Shikaku?
Shikaku is a paid application, available for $2.99. This one-time purchase grants you access to all its features and content.
Is Shikaku suitable for all ages?
Shikaku has an age rating of 4+, making it suitable for younger players and adults alike. Its logic-based gameplay is designed to be accessible yet challenging.











