Backgammon · Android

Backgammon PlyGround

A backgammon playground for training and analysis. Play a state-of-the-art neural network engine, review every move and every game. Free. 100% Local. No Ads. No data gathering. Forever.

Closed testing on Google Play Join the test

Analyzing a hard position in dark mode: the best play as green arrows on the board, and the ranked candidate moves with equities and winning chances. — Analyze any position · dark / light mode

A game against the engine: the board with the computer's last move shown as arrows, and the Double and Roll buttons. — Play the engine

Reviewing a game: the ranked candidate moves with their equities beside the board, with the played and best moves. — Review every decision

New match screen: match length and rules, and opponents by Performance Rating. — Choose your opponent

What it does

Play the engine at the strength you choose, by Performance Rating, from world class down to beginner. Money games (with Jacoby, beavers and raccoons if you like) or matches of any length.
Train your way: see each mistake straight away, only after the game, or be told it was a mistake and try again.
Review every game decision by decision, analyze it again deeper, and keep a list of your blunders.
Analyze any position: set it up on the board, or import it as an XGID (eXtreme Gammon) or a GNU Backgammon ID.
Export games and matches as .mat files for eXtreme Gammon or GNU Backgammon.
Statistics over time: Performance Rating for checker play and cube decisions, and a rating.

No ads, no in-app purchases, no account, and it works offline. Your games stay on your phone (see the privacy policy).

Future plans

More engines, Engine vs Engine play, Desktop version, and more.

Open source and credits

Backgammon PlyGround is free software under the GNU General Public License, version 3 or later. The source code of every release is on GitHub.

Included software	Licence
PureTD backgammon engine by Alexander Strehl (neural networks and move generator; the search, cube handling and match equity table are Bold Blot's own)	MIT
Archivo typeface	SIL Open Font License 1.1
Android Jetpack (AndroidX), Kotlin, kotlinx libraries	Apache 2.0

Performance Rating and the error categories follow the definitions published by eXtreme Gammon. eXtreme Gammon is a trademark of GameSite 2000 Ltd.; Backgammon PlyGround is not affiliated with it.