Border Chess

Chess on a 10×10 border board

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

Border Chess is chess with room to breathe. The board is 10×10: standard FIDE chess on the inner 8×8, plus one empty square on every side. Kings, queens, and edge pawns can use the border for extra maneuvering — same rules you know, with new tactical possibilities. PLAY VS BOT Challenge Fairy-Stockfish, tuned for the border board. Choose your difficulty and improve your game against a strong computer opponent. PLAY WITH FRIEND Pass-and-play on one iPhone. The board automatically flips each turn so both players see the game from their side. BUILT FOR CHESS PLAYERS • Standard rules: castling, en passant, promotion, check, checkmate, stalemate, 50-move rule • Legal move hints, last-move highlight, and check highlight • Clean, modern board inspired by chess.com • Portrait mode, optimized for iPhone NO ONLINE MULTIPLAYER (YET) v1 is offline on your device — bot mode and local two-player only. No account required. OPEN SOURCE Border Chess is free software under the GNU GPL v3. Source code and license: https://github.com/sahasrarjn/chess-app The bot engine uses Fairy-Stockfish (GPL v3). Chess piece artwork from the Lichess Maestro set. Play in your browser too: https://borderchess.org

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- Online Multiplayer - Hints when playing with a bot

Version 1.2

The developer, Sahasra Ranjan, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • Sahasra Ranjan
    Size
    • 4.1 MB
    Category
    • Board
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 Sahasra Ranjan
  • Developer Website
  • Privacy Policy

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