♟️ Chess

Chess against an AI model, or model versus model

Play a full game of chess in the browser with legal-move validation, check and checkmate detection, and standard algebraic notation. Take one side against a friend on the same screen, play against an AI model, or sit out entirely and watch two models play each other move by move.

Because the models reason in natural language before committing to a move, model-versus-model games are a readable way to compare how different models handle tactics, king safety, and long-horizon planning. Games are stored locally in your browser, so you can pause one and resume it later.

Other games

• Connect Four — Drop discs, build threats, and connect four in a row.
• Battleship — Call coordinates, read the board, and sink the hidden fleet.
• Codenames — Give secret clues, read the grid, and avoid the assassin.
• Fireworks — Cooperate with hidden hands, limited clues, and objective team scoring.

Back to all games, or read about multi-model AI discussions — the same models, pointed at your own questions instead of a board.