Chess Move Analyzer

Local Stockfish analysis with best and next-best move arrows on Chess.com boards.

Study chess positions directly on your board with Chess Move Analyzer. Powered by Stockfish, the extension displays suggested moves and position evaluations on Chess.com, helping you explore alternatives and understand the position. • Compare candidate moves: Display the engine’s top two choices with clear, color-coded arrows. • See the evaluation: Follow the position with a board-side evaluation bar and numeric scores. • Adjust your analysis: Choose your side, analysis time, and score perspective. • Customize your board: Change arrow colors, opacity, thickness, and analysis-card placement. • Explore optional auto-move: Automatically play the engine’s top choice during bot practice, with adjustable delays. Auto-move starts disabled and must be enabled separately in each tab. • Keep analysis local: Stockfish runs on your device. Chess positions are not sent to a remote engine, and no additional account or API key is required. Supports standard chess on Chess.com. Designed for position study, analysis, and practice against computer bots. Do not use engine assistance in games against other people; follow Chess.com’s Fair Play Policy. Chess Move Analyzer is an independent extension and is not affiliated with or endorsed by Chess.com.