Categories › Knowledge & Everyday › Games, entertainment & hobbies
Chess opening guides and names, FEN and PGN checks, the daily chess puzzle and Elo estimates.
Remote server: your requests and data go to www.chessigma.com. Claude Code: claude mcp add --transport http chessigma https://www.chessigma.com/api/mcp · Claude app: Settings → Connectors → Add custom connector.
The tools this server listed when we connected to it, in its own words.
get_opening_guide — Look up a chess opening by name or slug (for example "London System", "Caro-Kann" or "sicilian-defense") and return Chessigma's guide to it:identify_opening — Identify the chess opening of a move sequence, given as SAN movetext ("1. e4 c5 2. Nf3 d6") or a full PGN. Returns the ECO code and name froanalyze_position — Read a chess position from a FEN and return facts computed by the rules alone: side to move, status (normal, check, checkmate, stalemate or analyze_game — Summarize a chess game given as a PGN or as plain SAN movetext: players, result, number of plies, the opening and how long it followed theorreview_online_game — Turn the link of a public Chess.com live game or a Lichess game into a chessigma.com link that imports the game and opens a move-by-move revget_daily_puzzle — Get Chessigma's daily chess puzzle: today's by default, or a past day's via date (YYYY-MM-DD, from 2024-01-01 to today in UTC). The positioncalculate_elo — Estimate a player's new Elo rating after a single game with the Elo formula. Pure arithmetic, no chess engine. The system field picks a K-faNot tested by KitScout yet. When our harness runs it, pros, cons and the tasks we tried appear here, with the date and evidence.