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Opponent risk overlay for Chess.com & Lichess. Win rates, accuracy analysis, account age — all from public data. ♟ CHESS RISK SCORE - Know who you're playing. Tired of suspicious opponents? Chess Risk Score gives you an instant risk assessment of any opponent on Chess.com and Lichess, right inside the game page - plus embedded W/L/D stats and risk scores directly next to player usernames. ━━━━━━━━━━━━━━━━━━━━━━━━ HOW IT WORKS When you start or spectate a game, Chess Risk Score automatically: Detects your opponent Fetches their public stats from the Chess.com or Lichess API Calculates a composite risk score from 0-100 Displays everything in a clean, draggable overlay Optionally embeds W/L/D stats and risk scores next to usernames on both sides of the board ━━━━━━━━━━━━━━━━━━━━━━━━ WHAT'S MEASURED 📊 Overall Win Rate - All-time win percentage. Win rates above 60% begin contributing to risk. 📈 Recent Win Rate - Last 2 months only. Catches players who recently started using assistance. 🎯 Accuracy Analysis - Research-calibrated accuracy thresholds per rating band and time format. Flags players consistently performing above expected accuracy for their rating level. ⏰ Account Age Factor - New accounts (under 90 days) get a risk multiplier. Brand new accounts (under 7 days) score up to 5x higher. 🏅 Title Factor - Verified GMs and IMs receive reduced risk scores. Their stats are expected to look strong. ━━━━━━━━━━━━━━━━━━━━━━━━ PLAY YOUR WAY 📋 Normal Mode - Full risk profile shown automatically when a game starts. Score, stats, accuracy, insights table, and score breakdown all visible. 🧘 Semi-Zen Mode - Shows only the risk score circle during the game. Expand to full profile with one click when you want more detail. Auto-disables embedded stats on activation (can be re-enabled). 🧘 Full Zen Mode - Hides everything until the game is over. Data is fetched in the background but stays hidden so you can play without bias and review after. Auto-disables embedded stats and embedded risk score on activation (can be re-enabled). 📊 Embedded Only - Turn off auto-show overlay and enable embedded stats and/or embedded risk score to get a minimal, overlay-free experience with stats right next to usernames. ━━━━━━━━━━━━━━━━━━━━━━━━ EMBEDDED STATS & RISK SCORE 📌 Embedded Stats - Injects W/L/D game records next to player usernames on both sides of the board. Auto-filters by the current game format (playing blitz = blitz stats only). Falls back to combined stats when format can't be detected. 📌 Embedded Risk Score - Shows the risk score circle next to opponent and self usernames. Works alongside any mode. ⚙ Embedded Settings (cog icon) - Customize your embedded experience: - Time interval: 1 hour, 6 hours, 12 hours, 24 hours, 3 days, or 1 week - Hide own stats: only show opponent's stats - Color highlighting: toggle green/red/grey W/L/D numbers on or off 📐 Scales with zoom - embedded elements use relative sizing so they stay proportional at any browser zoom level. ━━━━━━━━━━━━━━━━━━━━━━━━ FEATURES ✅ Works on Chess.com AND Lichess - overlay and embedded features on both platforms ✅ Auto-detects opponent when a game starts ✅ Draggable overlay - position it wherever you like ✅ Toggle between opponent and your own stats ✅ Format-specific scoring and embedded stats (bullet, blitz, rapid) ✅ Per-format insights table with W/L/D, accuracy, ratings, and 7-day trends ✅ Embedded W/L/D stats and risk score circles next to usernames ✅ Configurable time interval, color highlighting, and hide-own-stats for embeds ✅ Semi-zen and full zen modes for distraction-free play ✅ Embedded-only mode - disable overlay, keep inline stats ✅ "How risk is calculated" transparency panel ✅ Dark and light theme support ✅ Keyboard shortcut (Alt+C) to manually trigger ✅ All analysis happens locally - zero data collection ━━━━━━━━━━━━━━━━━━━━━━━━ RISK LEVELS 🟢 0-25: Low Risk - Normal player patterns 🟡 26-50: Moderate Risk - Some elevated signals 🟠 51-75: High Risk - Multiple concerning indicators 🔴 76-100: Extreme Risk - Strongly unusual patterns ━━━━━━━━━━━━━━━━━━━━━━━━ IMPORTANT DISCLAIMER This extension provides risk indicators, not proof of cheating. A high risk score suggests unusual patterns worth attention - players deserve the benefit of the doubt. Use this tool responsibly and report suspected cheaters through official Chess.com or Lichess channels. ━━━━━━━━━━━━━━━━━━━━━━━━ PRIVACY No data collection. No tracking. No analytics. All analysis happens in your browser using only publicly available API data. Open source - audit the code yourself. ━━━━━━━━━━━━━━━━━━━━━━━━ Created by az_93
Chess.com Tweaks
Chess.com Tweaks is a browser extension that enhances your chess experience with a cleaner interface and additional analysis tools. ⭐ Features: - Hide all players' ratings - Hide opponent details (name, avatar, title, rating, etc.) when playing - Hide all country flags everywhere - Hide the flag next to your username on the homepage - Add buttons that send your finished games to the Lichess analysis page - Add Lichess's opening explorer to Analysis page - Add a link in archive games to go straight to Analysis, not Game Review
chess.rodeo - Free Chess Analysis
Analyze your chess.com games for free with Stockfish on chess.rodeo. Includes fixes for the updated Chess.com game-over screen. chess.rodeo provides deep analysis of your Chess.com games using Stockfish engine. Features: • One-click import from Chess.com • Deep Stockfish analysis (depth 15+) • Move-by-move classification (best, excellent, mistake, blunder) • Accuracy scores using Lichess formula • Opening detection with ECO codes • Game phase analysis (opening, middlegame, endgame) • Batch analysis across multiple games • Identify patterns and weaknesses How to use: 1. Play a game on Chess.com 2. Click "Analyze on chess.rodeo" button after the game 3. View detailed analysis with move classifications 4. Get personalized improvement recommendations
Chess.com Opponent Risk Score
Calculate risk scores for Chess.com opponents This extension helps you avoid playing cheaters (or those who seem suspicious). Right when the game starts, the extension pops up and shows you a risk score - the probability of your opponent being a cheater from 0 to 100, where 100 means that they're (almost) certainly a cheater. If the score is high or critical, you might want to abort the game before you start playing. The calculation is based on a primitive scoring model which considers 4 factors: - Overall win rate for each format - Recent win rate for each format (15-45 days) - % of High Accuracy games played recently* - Account age** These factors are combined, checked and weighted against each other, which results in the final risk score. On the options page, you can choose: - If you the risk score calculated based on all or only rated games - If you want to disable auto-pop-up behaviour. Note that this is recommended if you're running Chrome Version 126 or older. Please note that chess.com is not the fastest website out there. So sometimes the extension needs 5-10 seconds to load all the info. Just be patient! The extension source code, as well as the risk model description is available here: https://github.com/tim-sha256/chess.com-anti-cheat * High accuracy is considered 80%+ for rating in [0; 1500], and 90%+ for 1500+. ** Accounts younger than 60 days are considered more risky, and the overall score for them is multiplied by 1,5.
Chess Assist
Improve your chess skills with this advanced extension! Chess Assist is lightweight and packed with all new features! Calculate the best move, get live score data, and adjust your engine rating all with on-screen visuals. Custom made and lightning fast, this extension carries full support for most popular chess sites! Choose between Engine, Human, Neural, Style, and Fusion Modes to see the best engine moves, likely player responses, neural calculations, or different play styles. Also, further adjust between various skill levels in Human Mode. Warning: Human Mode will blunder just like real people do! The educational "Suggestion", "Blind", and "Combat" Modes help improve your knowledge and understanding of any chess position. Suggestions allow you to memorize and recognize patterns, greatly improving your chess skills and positional knowledge. Blind moves train your hand and brain to easily analyze enemy tactics and ideas. Combative pieces of key interest help you survey complex positions. Join https://discord.gg/td5UuyqzGu for help and status updates. Using tools to cheat / hack in chess or cheating / hacking to gain an advantage online will result in a ban. Sites are able to detect if an account may be cheating by checking the account lifespan, rating, moves, and move times. This extension is for educational use only, thank you.
