Tampermonkey Chess Script May 2026

This article covers everything you need to know about Tampermonkey chess scripts. Before we talk about chess scripts, we need a foundation. Tampermonkey is a browser extension (available for Chrome, Firefox, Edge, Safari, and Opera) that allows you to run userscripts —small pieces of JavaScript code that modify web pages.

Think of it as a "client-side mod." When you visit a website, your browser downloads the page’s code. A Tampermonkey script intercepts that code and changes it before you see the result. It can add buttons, remove advertisements, change colors, inject data from third-party APIs, or even automate actions. tampermonkey chess script

// ==UserScript== // @name Chess King Highlighter // @namespace http://tampermonkey.net/ // @version 1.0 // @description Highlights the king in red on Chess.com // @author You // @match https://www.chess.com/game/* // @grant none // ==/UserScript== (function() 'use strict'; This article covers everything you need to know

This is not engine evaluation—it’s positional understanding. Current fair play policies do not explicitly ban natural language advice , but they likely will. The line between "assistance" and "coaching" is blurry. The Tampermonkey chess script ecosystem is a double-edged sword. Think of it as a "client-side mod

Every second, it scans the Chess.com game page for pieces with the wk (white king) or bk (black king) class and adds a red glow.

Imagine a Tampermonkey script that does not use Stockfish, but uses a local AI model (like GPT-4o-mini or Llama 3) to give .