Chess tools: game reviews for Chess.com and Lichess, FIDE ratings, openings, positions, puzzles.
Scored across 8 tools
Each tool targets a distinct chess sub-domain: position facts, player profile, puzzle, Elo math, FIDE lookup, opening identification, opening reference, and game review. The only real overlap is between identify_opening and analyze_position (which also reports an opening name for known positions), plus a mild boundary between identify_opening and opening_guide, but the descriptions clarify when to use each.
All names are consistently snake_case and readable. It mixes verb-led (analyze_position, identify_opening, review_game) with noun-phrase names (chess_profile, daily_puzzle, elo_change, fide_rating, opening_guide), which is a minor inconsistency but each name accurately signals its resource.
Eight tools is well within the ideal 3-15 range and each one covers a genuinely different chess workflow. No tool feels redundant or filler; the set is tightly scoped to analysis and reference.
Covers the main chess-analysis lifecycle: position analysis, opening identification and reference, player/FIDE lookup, Elo calculation, puzzles, and game review. Minor gaps exist (no standalone engine evaluation or move-exploration tool, no game search/history), but analyze_position and review_game link out to engine analysis, so agents can work around them.
Facts about a chess position from its FEN: side to move, check, checkmate or stalemate, material, all legal moves, the opening name if it is a known opening position, and links to engine analysis and the best move.
| Name | Required | Description | Default |
|---|---|---|---|
| fen | Yes | The position in FEN. |
Current ratings and win/loss record of a Chess.com or Lichess player, with links to analyse their games and openings on lumichess.com.
| Name | Required | Description | Default |
|---|---|---|---|
| platform | No | chesscom | |
| username | Yes |
Today's Lumichess daily puzzle: the position, rating, themes and solution, with a link to solve it on the board.
| Name | Required | Description | Default |
|---|---|---|---|
No parameters | |||
Expected score and rating change for a win, draw or loss between two Elo ratings, at a chosen K-factor.
| Name | Required | Description | Default |
|---|---|---|---|
| rating | Yes | ||
| k_factor | No | Default 32. FIDE: 40 new players, 20 below 2400, 10 from 2400. | |
| opponent_rating | Yes |
Look up official FIDE ratings (standard, rapid, blitz), title, federation and birth year by player name or FIDE ID.
| Name | Required | Description | Default |
|---|---|---|---|
| query | Yes | A surname, "Surname, First name", or a FIDE ID. |
Name the opening (ECO code and variation) from a list of moves or a PGN, and say on which move the game left named theory.
| Name | Required | Description | Default |
|---|---|---|---|
| moves | Yes | Moves in SAN, e.g. "1.e4 c6 2.d4 d5 3.e5", or a full PGN. |
Guide to a chess opening: first moves, ECO codes, how often it is played and how it scores, the main lines and the ideas behind them, from Lumichess opening pages. For other names, lists matching ECO lines.
| Name | Required | Description | Default |
|---|---|---|---|
| name | Yes | Opening name, e.g. "Caro-Kann", "Sicilian Defense", "London System". |
Get a free move-by-move review of a Chess.com or Lichess game: accuracy, every move classified, the evaluation graph. Takes a game link or a PGN. Returns a lumichess.com review link; for a PGN also the players, result and opening.
| Name | Required | Description | Default |
|---|---|---|---|
| game | Yes | A Chess.com game link (chess.com/game/live/123... or chess.com/game/123...), a Lichess game link (lichess.org/abcd1234), or the full PGN text. |
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
analyze_positionchess_profiledaily_puzzleelo_changefide_ratingidentify_openingopening_guidereview_gameChess opening guides and names, FEN and PGN checks, the daily chess puzzle and Elo estimates.
Review your Chess.com and Lichess games with Stockfish on an interactive board, in plain words.
Chess ratings explained, an Elo calculator, and any Chess.com or Lichess player's recent games.
Chess MCP for Claude: engine analysis, attack maps, game review. One URL, no install.
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