Checkmate is a chess app allowing users to play online with global players or offline against a computer, featuring customizable boards and pieces.

Download Checkmate from Google Play Store or Apple App Store, then follow installation instructions for your device.

Upon first opening, select play mode, customize preferences, and start a game with the intuitive interface guidance.

Main features include online multiplayer, offline computer play, puzzles, customizable boards, and detailed game statistics.

Customize experience by choosing chessboard styles, piece sets, sound effects, and haptic feedback in settings.

Save favorite games by accessing game history during play and bookmarking important moves or strategies.

Share achievements or invite friends via social media integration directly within the app interface.

Access detailed information through game history, opening variations, and personal statistics available in-app.

Permissions needed include internet access for online play; manage them in device settings under app permissions.

Check for updates in your device's app store and ensure stable internet connection for smooth operation.