ChessSolve by Sárvári Merse

Professional real-time Stockfish chess engine analysis with visual best-move overlays for Chess.com and Lichess.

Take your unrated practice games to the next level. ChessSolve brings the world's strongest open-source chess engine directly onto your board. Get lightning-fast analysis with visual arrows, a live evaluation bar, and real-time move classifications.

⚡ CORE FEATURES

• Visual Best Move Arrows: As soon as a position changes, Stockfish highlights the strongest candidate moves directly on the board. (Free tier includes 1 best-move arrow; upgrade for up to 5 color-coded candidate arrows).

• Live Evaluation Bar: Instantly see who holds the advantage. The visual evaluation bar updates on every move so you can spot momentum shifts at a glance.

• Live Move Classifications: Every move gets badged instantly. See Brilliant (!!), Great (!), Best, Inaccuracy, Mistake, or Blunder tags the moment a piece is dropped.

• Seamless Platform Integration: Works natively on live unrated games and analysis boards on both Chess.com and Lichess.

🛠 HOW TO GET STARTED (Takes 2 Minutes)
1. Install: Click "Add to Chrome."
2. Create Free Account: Click the ChessSolve puzzle piece icon in your Chrome toolbar and create a free account to activate the engine.
3. Play: Open an unrated game on Chess.com or Lichess, open the ChessSolve popup, and hit "Start." The arrows and eval bar will appear instantly.

🎯 PERFECT FOR
• Opening Repertoire Training: Explore candidate lines natively on the board.
• Unrated Practice Games: Get immediate, live feedback on blunders.
• Post-Game Analysis: Step through finished games and watch the evaluation bar shift dynamically.

Disclaimer: Chess.com and Lichess prohibit engine assistance in rated or competitive play. ChessSolve is strictly designed for training, unrated practice, and post-game learning contexts.