Introducing the ultimate free and open-source chess platform, available both online and offline. Built with passion for chess lovers everywhere, this fully open-source application is 100% free to use, forever — no ads, no paywalls, just pure chess enjoyment.

• Join over 150,000 daily active users and experience a fast-growing community of chess enthusiasts.
• Play various time controls including bullet, blitz, classical, and correspondence chess.
• Compete in arena tournaments and test your skills against players around the globe.
• Challenge, follow, and connect with other players to improve your game and make new friends.
• Track your progress with detailed game statistics and performance insights.
• Sharpen your tactical skills using the built-in chess puzzle trainer.
• Enjoy a wide selection of popular chess variants, all playable online or offline:
  • Crazyhouse
  • Chess 960 (Fischer Random)
  • King of the Hill
  • Three-check
  • Antichess
  • Atomic Chess
  • Horde
  • Racing Kings
• Analyze your games with powerful tools:
  • Local computer evaluation for instant feedback.
  • Server-based analysis featuring move annotations and a comprehensive game summary.
• Explore openings with an unlimited opening explorer and dive deep into endgames using the tablebase explorer.
• Practice anytime with the offline computer opponent, offering adjustable difficulty levels.
• Use the Over-the-Board mode to play face-to-face with a friend using one device.
• Access a full-featured standalone chess clock with customizable time settings.
• Edit positions easily using the integrated board editor.
• Available in 80 languages, ensuring accessibility for players worldwide.
• Designed specifically for mobile devices, supporting both phones and tablets in portrait and landscape orientations.

This application is proudly licensed under the GNU General Public License v3.0, just like [ttpp]. It's completely free, respects your privacy, and contains zero advertisements. The source code is publicly available and continuously improved by the open-source community:

• Mobile app source code
• Website and server source code

What’s New in Version 8.0.0

Last updated on December 10, 2022, this latest release brings exciting new features, usability improvements, and critical bug fixes to enhance your chess experience. We are committed to continuous development, making sure the app stays up to date with modern standards and user expectations.

For more details about this and previous releases, visit the official GitHub page: Version History & Release Notes