Chessigma

Chessigma's own MCP server brings its chess tools into your agent. Ask about an opening, find out which opening your moves are, check a position from its FEN, summarize a game from its PGN, get a review link for a Chess.com or Lichess game, try the daily puzzle or estimate a rating change. The tools state facts from the rules of chess, an opening catalogue and Chessigma's puzzle archive; they don't run a chess engine. What you can do with it - Learn an opening: its main line, key variations and the ideas for each side. Popular openings have a full guide, and any catalogued opening name gives its ECO code and moves. - Name the opening of a move sequence or PGN, see how long it followed theory and the first move that left it - Read a position from its FEN: side to move, check, checkmate or stalemate, every legal move and the material count - Summarize a game from its PGN: players, result, opening and how it ended - Turn a public Chess.com live game or Lichess game link into a move-by-move review on Chessigma - Get today's puzzle, or any day's since 1 January 2024, with its solution and a link to play it - Estimate a rating change after one game with the Elo formula, with K-factor defaults for FIDE, Chess.com and Lichess How it connects Chessigma hosts it at https://www.chessigma.com/api/mcp (Streamable HTTP). There's nothing to install, no account and no sign-in. In Claude you can also add it from Claude's connector directory. Good to know - Every tool is read-only: none writes data, calls an AI model or fetches another site while it runs. - For engine analysis, its links open Chessigma's analysis board, where Stockfish runs in your browser. - Chessigma doesn't store what you send. To limit request rates it logs each request's time, IP address and user agent, and each address can send 60 requests a minute and 300 an hour.

• “Teach me the Caro-Kann: main line, key variations and the ideas for both sides.”

  1. get_opening_guide
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• “What opening is 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6?”

  1. identify_opening
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• “Is Black checkmated here? r1bqkb1r/pppp1Qpp/2n2n2/4p3/2B1P3/8/PPPP1PPP/RNB1K1NR b KQkq - 0 4”

  1. analyze_position
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• “Review this game for me: https://www.chess.com/game/live/173765478164”