Chess.com Stockfish Bot with Enhanced Auto-Match using Stockfish Online API
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// ==UserScript==
// @name Chess.com Stockfish Bot
// @namespace BottleOrg Scripts
// @version 1.6.2.17
// @description Chess.com Stockfish Bot with Enhanced Auto-Match using Stockfish Online API
// @author Quoc Bao Nguyen & Deepseek V3 AI & Gemini 2.0 AI & Grok 3 (xAI)
// @license Chess.com Bot/Cheat by BottleOrg(me Quoc Bao Nguyen)
// @match https://www.chess.com/play/*
// @match https://www.chess.com/game/*
// @match https://www.chess.com/puzzles/*
// @icon data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
// @grant GM_getValue
// @grant GM_setValue
// @grant GM_xmlhttpRequest
// @grant GM_getResourceText
// @grant GM_registerMenuCommand
// @require https://greasyfork.org/scripts/445697/code/index.js
// @require https://code.jquery.com/jquery-3.6.0.min.js
// @run-at document-start
// ==/UserScript==
const currentVersion = '1.6.2.17';
const scriptURL = 'https://greasyfork.org/en/scripts/526240-chess-com-stockfish-bot';
function checkForUpdate() {
console.log("Checking for script updates...");
GM_xmlhttpRequest({
method: "GET",
url: scriptURL,
onload: function(response) {
if (response.status === 200) {
const html = response.responseText;
const versionMatch = html.match(/@version\s+([\d.]+)/);
if (versionMatch && versionMatch[1]) {
const latestVersion = versionMatch[1];
console.log("Latest version found:", latestVersion);
if (compareVersions(latestVersion, currentVersion) > 0) {
const message = `New Version: ${latestVersion} has been uploaded. Would you like me to take you there or continue with old version ${currentVersion}? (Not recommended for stability)`;
if (confirm(message)) {
window.location.href = scriptURL;
} else {
console.log("User chose to continue with old version.");
}
} else {
console.log("No newer version available.");
}
} else {
console.error("Could not find version in Greasy Fork page.");
}
} else {
console.error("Failed to fetch script page:", response.status);
}
},
onerror: function(error) {
console.error("Error checking for update:", error);
}
});
}
function compareVersions(v1, v2) {
const parts1 = v1.split('.').map(Number);
const parts2 = v2.split('.').map(Number);
for (let i = 0; i < Math.max(parts1.length, parts2.length); i++) {
const p1 = parts1[i] || 0;
const p2 = parts2[i] || 0;
if (p1 > p2) return 1;
if (p1 < p2) return -1;
}
return 0;
}
function main() {
var myVars = document.myVars = { autoMove: false, autoRun: false, autoMatch: false, delay: 0.1, hasAutoMatched: false, gameEnded: false };
var myFunctions = document.myFunctions = {};
var currentStockfishVersion = "Stockfish API";
var uiElementsLoaded = false;
const stockfishAPI_URI = "https://stockfish.online/api/s/v2.php";
var stop_b = 0, stop_w = 0, s_br = 0, s_br2 = 0, s_wr = 0, s_wr2 = 0;
myFunctions.rescan = function() {
console.log("Rescanning board...");
var boardElement = document.querySelector('chess-board, wc-chess-board');
if (!boardElement) {
console.warn("No board element found. Using default FEN.");
return "rnbqkbnr/pppppppp/5n2/8/8/5N2/PPPPPPPP/RNBQKBNR w KQkq - 0 1";
}
var pieces = $(boardElement).find(".piece").map(function() { return this.className; }).get();
if (!pieces.length) {
console.warn("No pieces found. Using default FEN.");
return "rnbqkbnr/pppppppp/5n2/8/8/5N2/PPPPPPPP/RNBQKBNR w KQkq - 0 1";
}
var boardArray = Array(64).fill('');
pieces.forEach(piece => {
var classes = piece.split(' ');
var squareClass = classes.find(c => c.startsWith('square-'));
var pieceClass = classes.find(c => /^[wb][prnbqk]$/.test(c));
if (squareClass && pieceClass) {
var squareNum = squareClass.replace('square-', '');
var file = parseInt(squareNum[0]) - 1;
var rank = parseInt(squareNum[1]) - 1;
var square = (7 - rank) * 8 + file;
if (square >= 0 && square < 64) {
var pieceChar = {'wp': 'P', 'bp': 'p', 'wr': 'R', 'br': 'r', 'wn': 'N', 'bn': 'n',
'wb': 'B', 'bb': 'b', 'wq': 'Q', 'bq': 'q', 'wk': 'K', 'bk': 'k'}[pieceClass];
boardArray[square] = pieceChar;
}
}
});
var fen = '';
for (var i = 0; i < 64; i++) {
if (i % 8 === 0 && i > 0) fen += '/';
var piece = boardArray[i];
if (!piece) {
var emptyCount = 1;
while (i + 1 < 64 && !boardArray[i + 1] && (i + 1) % 8 !== 0) {
emptyCount++;
i++;
}
fen += emptyCount;
} else {
fen += piece;
}
}
var turn = $('.coordinates').children().first().text() === "1" ? 'b' : 'w';
var castling = (stop_w ? '' : 'KQ') + (stop_b ? '' : 'kq') || '-';
fen += ` ${turn} ${castling} - 0 1`;
console.log("Generated FEN:", fen);
return fen;
};
myFunctions.color = function(dat) {
console.log("myFunctions.color CALLED with:", dat);
const bestmoveUCI = dat.split(' ')[1];
console.log("Extracted bestmove UCI:", bestmoveUCI);
if (myVars.autoMove) myFunctions.movePiece(bestmoveUCI);
else myFunctions.highlightMove(bestmoveUCI);
isThinking = false;
myFunctions.spinner();
};
myFunctions.highlightMove = function(bestmoveUCI) {
var res1 = bestmoveUCI.substring(0, 2), res2 = bestmoveUCI.substring(2, 4);
$(board).prepend(`<div class="highlight square-${res2}" style="background-color: rgb(235, 97, 80); opacity: 0.71;"></div>`)
.children(':first').delay(1800).queue(function() { $(this).remove(); });
$(board).prepend(`<div class="highlight square-${res1}" style="background-color: rgb(235, 97, 80); opacity: 0.71;"></div>`)
.children(':first').delay(1800).queue(function() { $(this).remove(); });
console.log("Highlighted:", bestmoveUCI);
};
myFunctions.movePiece = function(bestmoveUCI) {
console.log("movePiece CALLED with:", bestmoveUCI);
if (!board || !board.game) {
console.error("Board or board.game not initialized!");
return;
}
const fromSquare = bestmoveUCI.substring(0, 2);
const toSquare = bestmoveUCI.substring(2, 4);
const legalMoves = board.game.getLegalMoves();
console.log("Legal moves:", legalMoves);
let foundMove = legalMoves.find(move => move.from === fromSquare && move.to === toSquare);
if (foundMove) {
console.log("Executing move:", foundMove);
board.game.move({ ...foundMove, promotion: 'q', animate: true, userGenerated: true });
console.log("Move executed:", bestmoveUCI);
} else {
console.warn("No legal move found for:", bestmoveUCI);
}
};
myFunctions.reloadChessEngine = function() { console.log("Reload not needed for API."); };
myFunctions.loadChessEngine = function() {
console.log("Using Stockfish API.");
if (uiElementsLoaded) $('#engineVersionText')[0].innerHTML = "Engine: <strong>Stockfish API</strong>";
};
myFunctions.fetchBestMoveFromAPI = function(fen, depth) {
const apiURL = `${stockfishAPI_URI}?fen=${encodeURIComponent(fen)}&depth=${depth}`;
console.log(`Fetching from: ${apiURL}`);
GM_xmlhttpRequest({
method: "GET",
url: apiURL,
onload: function(response) {
if (response.status === 200) {
try {
const jsonResponse = JSON.parse(response.responseText);
if (jsonResponse.success) {
console.log("API Response:", jsonResponse);
myFunctions.color(jsonResponse.bestmove);
} else {
console.error("API failed:", jsonResponse);
isThinking = false;
myFunctions.spinner();
}
} catch (e) {
console.error("API parse error:", e);
isThinking = false;
myFunctions.spinner();
}
} else {
console.error("API error:", response.status);
isThinking = false;
myFunctions.spinner();
}
},
onerror: function(error) {
console.error("API request error:", error);
isThinking = false;
myFunctions.spinner();
}
});
};
myFunctions.startNewGame = function() {
console.log("Starting new game...");
// Check for game-over "New <x> min" button in modal
const modalNewGameButton = $('.game-over-modal-content .game-over-buttons-component .cc-button-component:not([aria-label="Rematch"])');
if (modalNewGameButton.length) {
modalNewGameButton[0].click();
console.log("Clicked New <x> min button from game-over modal.");
myVars.hasAutoMatched = true;
return;
}
// Check for game-over "New <x> min" button outside modal
const newGameButton = $('.game-over-buttons-component .cc-button-component:not([aria-label="Rematch"])');
if (newGameButton.length) {
newGameButton[0].click();
console.log("Clicked New <x> min button from game-over.");
myVars.hasAutoMatched = true;
return;
}
// Check for guest prompt
const guestButton = $('#guest-button.authentication-intro-guest');
if (guestButton.length) {
guestButton[0].click();
console.log("Clicked Play as Guest.");
setTimeout(() => {
const playButton = $('.cc-button-component.cc-button-primary.cc-button-xx-large.cc-button-full');
if (playButton.length) {
playButton[0].click();
console.log("Clicked Play button after guest prompt.");
myVars.hasAutoMatched = true;
} else {
console.error("Play button not found after guest prompt!");
}
}, 500);
return;
}
// Fallback to sidebar "New Game" tab and "Play"
const newGameTab = $('[data-tab="newGame"]');
if (newGameTab.length) {
newGameTab[0].click();
console.log("Clicked New Game tab.");
setTimeout(() => {
const playButton = $('.cc-button-component.cc-button-primary.cc-button-xx-large.cc-button-full');
if (playButton.length) {
playButton[0].click();
console.log("Clicked Play button.");
myVars.hasAutoMatched = true;
} else {
console.error("Play button not found!");
}
}, 500);
} else {
console.error("New Game tab not found!");
}
};
myFunctions.declineRematch = function() {
const declineButton = $('.cc-button-component.cc-button-secondary[aria-label="Decline"], .cc-button-component.cc-button-secondary:contains("Decline")');
if (declineButton.length) {
declineButton[0].click();
console.log("Declined rematch.");
return true;
} else {
console.log("No rematch decline button found.");
return false;
}
};
var lastValue = 11, MAX_DEPTH = 15, MIN_DEPTH = 1;
myFunctions.runChessEngine = function(depth) {
depth = Math.max(MIN_DEPTH, Math.min(MAX_DEPTH, depth));
var fen = myFunctions.rescan();
console.log(`Analyzing FEN: ${fen}, Depth: ${depth}`);
isThinking = true;
myFunctions.spinner();
myFunctions.fetchBestMoveFromAPI(fen, depth);
lastValue = depth;
updateDepthDisplay();
};
function updateDepthDisplay() {
if (uiElementsLoaded && $('#depthText')[0]) $('#depthText')[0].innerHTML = `Depth: <strong>${lastValue}</strong>`;
}
myFunctions.incrementDepth = function(delta) {
lastValue = Math.max(MIN_DEPTH, Math.min(MAX_DEPTH, lastValue + delta));
updateDepthDisplay();
};
myFunctions.autoRun = function() {
if (board && board.game && board.game.getTurn() === board.game.getPlayingAs()) {
myFunctions.runChessEngine(lastValue);
}
};
document.onkeydown = function(e) {
switch (e.keyCode) {
case 81: myFunctions.runChessEngine(1); break; // Q
case 87: myFunctions.runChessEngine(2); break; // W
case 69: myFunctions.runChessEngine(3); break; // E
case 82: myFunctions.runChessEngine(4); break; // R
case 84: myFunctions.runChessEngine(5); break; // T
case 89: myFunctions.runChessEngine(6); break; // Y
case 85: myFunctions.runChessEngine(7); break; // U
case 73: myFunctions.runChessEngine(8); break; // I
case 79: myFunctions.runChessEngine(9); break; // O
case 80: myFunctions.runChessEngine(10); break; // P
case 65: myFunctions.runChessEngine(11); break; // A
case 83: myFunctions.runChessEngine(12); break; // S
case 68: myFunctions.runChessEngine(13); break; // D
case 70: myFunctions.runChessEngine(14); break; // F
case 71: myFunctions.runChessEngine(15); break; // G
case 187: myFunctions.incrementDepth(1); break; // +
case 189: myFunctions.incrementDepth(-1); break;// -
}
};
myFunctions.spinner = function() {
if (uiElementsLoaded && $('#overlay')[0]) {
$('#overlay')[0].style.display = isThinking ? 'block' : 'none';
}
};
let dynamicStyles = null;
function addAnimation(body) {
if (!dynamicStyles) {
dynamicStyles = document.createElement('style');
document.head.appendChild(dynamicStyles);
}
dynamicStyles.sheet.insertRule(body, dynamicStyles.length);
}
var loaded = false;
myFunctions.loadEx = function() {
try {
console.log("Attempting to load UI...");
board = document.querySelector('chess-board, wc-chess-board');
var div = document.createElement('div');
div.innerHTML = `
<div style="margin: 8px; padding: 10px; background: white; border: 1px solid #000; border-radius: 5px;">
<p id="depthText">Depth: <strong>${lastValue}</strong></p>
<button id="depthMinus">-</button>
<button id="depthPlus">+</button>
<p style="font-size: 12px;">Keys: Q-G (1-15), +/-</p>
<p id="engineVersionText">Engine: Stockfish API</p>
<label><input type="checkbox" id="autoRun"> Auto Run</label><br>
<label><input type="checkbox" id="autoMove"> Auto Move</label><br>
<label><input type="checkbox" id="autoMatch"> Auto-Match</label><br>
<label>Min Delay (s): <input type="number" id="timeDelayMin" min="0.1" value="0.1" step="0.1" style="width: 60px;"></label><br>
<label>Max Delay (s): <input type="number" id="timeDelayMax" min="0.1" value="1" step="0.1" style="width: 60px;"></label>
</div>`;
div.style.cssText = 'position: fixed; top: 10px; right: 10px; z-index: 10000;';
document.body.appendChild(div);
setTimeout(() => {
$('#depthPlus').off('click').on('click', () => myFunctions.incrementDepth(1));
$('#depthMinus').off('click').on('click', () => myFunctions.incrementDepth(-1));
$('#autoMatch').on('change', () => {
myVars.autoMatch = $('#autoMatch')[0].checked;
if (myVars.autoMatch && !myVars.hasAutoMatched) {
myFunctions.startNewGame();
}
});
console.log("Event listeners bound.");
}, 100);
var spinCont = document.createElement('div');
spinCont.id = 'overlay';
spinCont.style.cssText = 'display: none; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);';
div.appendChild(spinCont);
var spinr = document.createElement('div');
spinr.style.cssText = "height: 64px; width: 64px; animation: rotate 0.8s infinite linear; border: 5px solid firebrick; border-right-color: transparent; border-radius: 50%;";
spinCont.appendChild(spinr);
addAnimation(`@keyframes rotate { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }`);
loaded = true;
uiElementsLoaded = true;
console.log("UI loaded successfully.");
myFunctions.loadChessEngine();
checkForUpdate();
} catch (error) {
console.error("loadEx error:", error);
}
};
function other(delay) {
var endTime = Date.now() + delay;
var timer = setInterval(() => {
if (Date.now() >= endTime) {
myFunctions.autoRun();
canGo = true;
clearInterval(timer);
}
}, 10);
}
const waitForChessBoard = setInterval(() => {
if (!loaded) {
myFunctions.loadEx();
} else {
if (!board) board = document.querySelector('chess-board, wc-chess-board');
myVars.autoRun = $('#autoRun')[0].checked;
myVars.autoMove = $('#autoMove')[0].checked;
myVars.autoMatch = $('#autoMatch')[0].checked;
let minDel = parseFloat($('#timeDelayMin')[0].value) || 0.1;
let maxDel = parseFloat($('#timeDelayMax')[0].value) || 1;
myVars.delay = Math.random() * (maxDel - minDel) + minDel;
myFunctions.spinner();
myTurn = board && board.game && board.game.getTurn() === board.game.getPlayingAs();
updateDepthDisplay();
// Check for game end
const gameOver = document.querySelector('.game-over-message-component') || document.querySelector('.game-result');
if (gameOver && !myVars.gameEnded) {
console.log("Game ended detected (chat or result).");
myVars.gameEnded = true;
if (myVars.autoMatch) {
myFunctions.declineRematch(); // Check for rematch once on game end
setTimeout(() => {
myVars.hasAutoMatched = false; // Reset to allow new game
myFunctions.startNewGame(); // Attempt to start new game
}, 1000); // Delay to ensure modal loads
}
} else if (!gameOver && myVars.gameEnded) {
myVars.gameEnded = false; // Reset when game restarts
}
// Check for game-over modal and auto-click "New <x> min" if Auto-Match is enabled
const gameOverModal = $('.game-over-modal-content');
if (myVars.autoMatch && gameOverModal.length && !myVars.hasAutoMatched) {
console.log("Game over modal detected.");
const newGameButton = gameOverModal.find('.game-over-buttons-component .cc-button-component:not([aria-label="Rematch"])');
if (newGameButton.length) {
newGameButton[0].click();
console.log("Clicked New <x> min button from game-over modal in interval.");
myVars.hasAutoMatched = true;
} else {
console.error("New <x> min button not found in game-over modal!");
}
}
if (myVars.autoRun && canGo && !isThinking && myTurn) {
canGo = false;
other(myVars.delay * 1000);
}
}
}, 500);
setTimeout(() => {
if (!loaded) myFunctions.loadEx();
}, 2000);
}
var isThinking = false, canGo = true, myTurn = false, board;
window.addEventListener("load", () => main());