stockfish

The Stockfish chess engine in Web Assembly (WASM)

v17.1.0 URL: https://unpkg.com/stockfish@17.1.0/src/stockfish.js

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elo-rank

elo ranking system

v1.0.4 URL: https://unpkg.com/elo-rank@1.0.4/index.js

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elo rank ranking chess

cm-chessboard

A JavaScript chessboard which is lightweight, ES6 module based, responsive, SVG rendered and without dependencies.

v8.10.1 URL: https://unpkg.com/cm-chessboard@8.10.1

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chess chessboard SVG ES6 ECMAScript 6 chessmail module widget

cm-pgn

Module for parsing and rendering of PGNs (Portable Game Notation)

v4.0.6 URL: https://unpkg.com/cm-pgn@4.0.6/src/Pgn.js

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ES6 ECMAScript 6 chess PGN parser

chess.mjs

It's just the ES6 module version of chess.js

v2.2.5 URL: https://unpkg.com/chess.mjs@2.2.5/src/Chess.js

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chess chess.js es6 module