Chess Observer

How It Works

🔗

1. Connect

Link your Lichess or Chess.com account in one click. We never see your password.

🤖

2. We Analyze

Our AI scans your recent games and compares opponent moves to engine recommendations.

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3. Get Alerts

Suspicious players are flagged with detailed reports explaining why they look fishy.

What We Detect

✓ Engine Correlation — Matches moves to Stockfish top choices

✓ Move Timing Patterns — Detects robotic or suspiciously consistent timing

✓ Sniper Moves — Finds only-move wins in losing positions

✓ Ban History — Checks if opponent was already banned on Lichess/Chess.com

✓ Theory of Mind Score — Measures how "human-like" the play feels

Simple Pricing

Master

$9.95/mo

Entry level for serious players.

✓ 500 Games / month
✓ Deep Dive Reports
✓ Live Verification

Cancel anytime.

Grandmaster

$29.95/mo

For coaches & power users.

✓ 5,000 Games / month
✓ Priority Processing
✓ Smart Cheat Detection
✓ Batch Analysis

Includes Master features.

Enterprise

Custom

For tournaments & organizations.

✓ API Access
✓ Bulk Batch Processing
✓ Dedicated Support
✓ Custom Integrations

Ready to Get Started?

Questions?

How does Chess Observer work?

📊 Analysis Dashboard

🔄 Active Analyses (0/9)

📜 Recent Investigations

🔍 Detective Mode

Recent Public Games

🔗 Link Lichess Account

2. Synchronise Your Games

🚨 Safety Reports

Your Recent Reports

💎 Upgrade to Pro

Free

Pro