TumeKyouen

Contains ads
Content rating
Everyone
1K+
Downloads
Content rating
Everyone
Learn more
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Screenshot image
Screenshot image

About this game

Kyouen (共円) is a geometric concept describing four or more points that all lie on a single circle.
"Tsume Kyouen" is a puzzle game where you find the combination of stones that satisfies this condition.

Select four stones from those placed on the board and find the "kyouen" — the arrangement where all four lie on a common circle. The rules are straightforward, but as the board grows more complex, spatial reasoning becomes essential.

Features
- A mathematical puzzle grounded in geometry
- Over 10,000 stages with varied challenges
- A clean design that keeps the focus on the puzzle
- Save and sync your progress with account sign-in

Great for fans of mathematics, geometry, or logic-based puzzles.
Updated on
May 26, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Personal info, App activity and 2 others
This app may collect these data types
Personal info, App activity and 2 others
Data is encrypted in transit
You can request that data be deleted

What’s new

Added a hint feature.
You can now get hints for difficult stages by watching an ad.