CBG -- Clavierhaus BackGammon is a free, open-source Android Games app. The latest version is 1.0.1, it is 37.4 MB, requires Android 12.0+, and is published by clavierhaus.
- Size
- 37.4 MB
- Requires
- Android 12.0+
- Last updated
- 29 days ago25 Aug 2026
- Safety
- Scanned25 Aug 2026what does this mean?
License: GPL-3.0-or-later · Target SDK: 36 — what does target SDK mean?
About this app
CBG Pro is the complete GNU Backgammon engine on Android -- and 1.0.0 is a major update that turns a strong backgammon app into the most capable analysis and training tool on the platform. It is not "based on" GNU Backgammon: it IS GNU Backgammon 1.08.003, vendored verbatim, with neural-net weights byte-identical to the desktop release. Every number on screen is the engine's own.
Screenshots
Permissions4 requested
What version 1.0.1 is allowed to do once installed. Highlighted entries reach outside the app’s own sandbox and are worth a second look. Not sure what a permission actually means? Learn how to evaluate app permissions.
Dynamic Receiver Not Exported Permission
No description available for this permission.
com.clavierhaus.gnubg.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Foreground Service
Keep running in the background with a visible notification.
android.permission.FOREGROUND_SERVICE
Foreground Service Special Use
No description available for this permission.
android.permission.FOREGROUND_SERVICE_SPECIAL_USE
Post Notifications
Show notifications.
android.permission.POST_NOTIFICATIONS
Version history1 published build
- v1.0.1Latestbuild 101Scanned
- Released
- 25 Aug 2026
- Size
- 37.4 MB
- Requires
- Android 12.0+
- Target SDK
- 36
MAJOR UPDATE -- CBG becomes CBG Pro. New: regulation rollouts on-device (1296-trial, variance-reduced, seed-reproducible), a Coach that judges every move and cube action with tap-to-replay of better alternatives, a position set-up editor, personal statistics from gnubg's own analysis, a cryptographically signed career record, and a tournament match clock. Same engine, same signing key, fully offline as always.
Download v1.0.14 permissions
Dynamic Receiver Not Exported Permission
No description available for this permission.
com.clavierhaus.gnubg.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Foreground Service
Keep running in the background with a visible notification.
android.permission.FOREGROUND_SERVICE
Foreground Service Special Use
No description available for this permission.
android.permission.FOREGROUND_SERVICE_SPECIAL_USE
Post Notifications
Show notifications.
android.permission.POST_NOTIFICATIONS
New to sideloading? Read the install guide before opening an APK. Not sure this build supports your phone? See how to check your device’s Android version.
Read our guide to the best open-source Games apps for Android
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