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A userscript library for seamlessly adding chess move arrows to game boards on popular platforms like Chess.com and Lichess.org
此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.greasyfork.icu/scripts/470417/1562165/UniversalBoardDrawerjs.js