function addStyles() const css = ` .tm-last-move outline: 3px solid rgba(255,180,0,0.9); border-radius:6px; .tm-legal-move box-shadow: inset 0 0 0 3px rgba(0,200,120,0.18); .tm-timer-bar position: absolute; left:0; bottom:0; height:4px; background:#ff6b6b; transition:width 0.1s linear; z-index:9999; .tm-analysis-btn position: absolute; top:8px; right:8px; padding:6px 8px; background:#222; color:#fff; border-radius:4px; font-size:13px; cursor:pointer; z-index:9999; opacity:0.9; .tm-analysis-btn:hover opacity:1; `; const s = document.createElement('style'); s.textContent = css; document.head.appendChild(s);
: The most notorious scripts link the browser window to a powerful chess engine (like Stockfish), highlighting the "best move" on the screen.
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: High-end scripts like Chess AI integrate Stockfish directly into the browser to show best moves, provide real-time evaluation bars, and even automate move execution with "Human Mode" to mimic natural timing. tampermonkey chess script
Consistently matching top-tier engine choices over multiple games flags an account for immediate manual review. The Consequences
// === END CONFIG ===
// ==UserScript== // @name Chess Bot Helper // @namespace http://tampermonkey.net/ // @version 1.0 // @description Injects chess analysis into DOM // @author You // @match https://www.chess.com/* // @match https://lichess.org/* // @grant GM_xmlhttpRequest // @grant unsafeWindow // @connect localhost // @connect stockfish.lichess.org // ==/UserScript== function addStyles() const css = `
Advanced bots designed to play at high ELO levels, often marketed for bullet or blitz. How to Install and Use a Chess Script
Modern web platforms can detect if external scripts are actively reading or injecting elements into the chessboard container. The Consequences
Displays algebraic notation (a1-h8) on squares, highlights legal moves, or shows visual threats. The Consequences // === END CONFIG === //
Click the "Install this script" button on Greasy Fork. Tampermonkey will open a new tab showing the source code. Click Install again to confirm.
The world of online chess has exploded over the last decade. Platforms like Chess.com, Lichess.org, and Chess24 have turned a 1,500-year-old game into a global digital arena. With this growth comes a new frontier of customization: .
Before you start, ensure you have Tampermonkey installed in your browser. Then, you can create a new script by clicking on the Tampermonkey icon in your browser toolbar, selecting "Create a new script," and then pasting the following code into the editor:
function highlightLegalMoves(board) // naive: when user clicks a piece square, highlight possible target squares if present board.addEventListener('click', (e) => const sq = e.target.closest('[data-square], .square'); if (!sq) return; // remove old board.querySelectorAll('.tm-legal-move').forEach(x => x.classList.remove('tm-legal-move')); // find legal target squares (site-specific classes) const targets = document.querySelectorAll('.legal-move, .target'); targets.forEach(t => t.classList.add('tm-legal-move')); , true);