How to play
- Reveal a square and read how many mines touch it.
- Flag a location only when the surrounding clues support that conclusion.
- Combine neighboring clues to uncover all safe squares without selecting a mine.
What this game practices
One of the strongest deduction games in this set because each number constrains nearby cells. Some generated positions may still require probability rather than certainty.
How we checked it
Open-source HTML5 game reviewed in the local coolmath build for startup, primary controls, restart flow, narrow-screen fit, console errors, failed requests, and third-party network activity. Upstream telemetry is disabled in this self-hosted copy.
Open-source license and attribution
This self-hosted game is adapted from Web Games by mashukui and distributed under the MIT License. coolmath disabled upstream telemetry and records its local changes in the open-source notices.
Reviewed by coolmath Editorial Team · Updated 2026-10-09