Bluetooth Chess is a chess game that you can play with friends or family, offline. It is a multiplayer game, and you can play with more than one person. You need to install the game, click on the Multiplayer tab, and choose a username.

Then, you will see the name of the player who is connected to your device. You can tap on that name and connect to the player automatically through Bluetooth. When someone is connected, you will see the name of the person, and you can tap on the player to start the game.

The chess engine used in the Bluetooth Chess is called BOMG-Stockfish.