How to play
- Place your fleet without overlapping ships.
- Choose grid coordinates on the opponent board to fire a shot.
- Use hit and miss information to narrow the possible positions of every ship.
What this game practices
Useful for coordinate language and evidence-based search. Chance still affects the opening moves, so a win is not a pure measure of logical ability.
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