ChessBuddy

Learn chess by playing and discussing positions with ChatGPT. Use an interactive board with legal move validation, elapsed player clocks, and a move-by-move tracker. Ask for explanations, progressive hints, or candidate moves from authored lessons and standard opening continuations.

Invite a friend to a two-human game. Each player receives a private access code and chooses explanations only, hints, or move suggestions in their own ChatGPT conversation. Invitations work in the web app or through ChessBuddy in ChatGPT. The creator can revoke an unclaimed invitation and create, replace, or revoke a separate read-only spectator link. Spectators can follow the game and discuss positions; completed shared games can be reviewed move by move.

Replay supplied PGN, a solo game snapshot, or a continuation from a custom FEN. Start at a later position, step or autoplay with optional recorded elapsed timing, and ask about the displayed position.

ChessBuddy is free and has no purchases or required account registration. It uses temporary, best-effort Vercel app memory: routing to another instance, restarts, or deployment can make a game unavailable early. Multiplayer expires seven days after creation; solo games target seven days after the last move, and imported replays seven days after import. Private player codes must not be shared. Guidance is educational, without engine evaluation, rated matchmaking, or a professional-strength guarantee. Supplied historical metadata is not independently authenticated.