Checkmate Trainer by Hallk
Train your tactical eye: find the checkmate in one move. Offline puzzle set with verified solutions and hints.
Available on Firefox for Android™Available on Firefox for Android™
Scan the QR code to open this extension in Firefox for Android
Extension Metadata
Permissions and data
More information
- Add-on Links
- Version
- 2.3.4
- Size
- 38.99 KB
- Last updated
- 5 days ago (Aug 8, 2026)
- Related Categories
- License
- The Unlicense
- Version History
- Add to collection