Enhance your chess game with ChessIs! This comprehensive chess analysis app helps you identify weaknesses and elevate your skills.

ChessIs offers a powerful suite of features to analyze your games and improve your strategy:

• In-depth Game Analysis: Receive detailed game reports highlighting blunders, missed opportunities, and optimal moves. Understand why a move was a blunder, not just that it was.
• Position Analysis: Utilize the Stockfish engine to analyze specific chess positions.
• Computer Play: Practice against a computer opponent tailored to your skill level.
• Board Editor: Set up and analyze custom board positions.
• PGN Support: Open and analyze PGN files.
• Blunder Alerts: Receive immediate alerts for blunders with explanations.
• Engine Line Management: Add and play multiple engine lines.
• Customization: Adjust board colors, pieces, and engine settings (hash value, threads).
• Opening Explorer: Explore a comprehensive list of chess openings.
• Time Controls: Play chess games with a clock or set engine thinking time.
• Advanced Analysis Metrics: Access average Candidate Ply (CPL), accuracy percentage, threat detection, and the ability to draw arrows on the board. Analyze games based on time or depth.
• Import from Online Platforms: Analyze games from chess.com and Lichess.
• Export Annotated PGN: Save your analyzed games in annotated PGN format.
• Chess960 Support: Analyze and play Chess960 games.
• Game Database: Search your games database using FEN notation.
• Support for Oex Engines: Expand your engine options.
• Threat Highlighting: Clearly identify threats on the board.

ChessIs is a top-tier chess analyzer designed to help you improve. While many features are free, the Pro version unlocks enhanced capabilities:

• "Why Blunder" Line Playback: See the optimal line to avoid blunders.
• Unlimited Engine Lines: Add as many engine lines as needed.
• NNUE Engine Support: Utilize Neural Network Evaluation (NNUE) engines.
• Advanced Game Report Customization: Adjust report depth and time.
• Deep Analysis: Achieve more precise and reliable analysis.
• Real-time Move Strength: See the strength of each move during gameplay.
• In-game Mistake Alerts: Get real-time alerts for mistakes while playing.
• Ad-Free Experience: Enjoy uninterrupted analysis.
• Unlimited Game Analysis: Analyze as many games as you like.

Deep analysis provides significantly more accurate results than quick analysis.

Download ChessIs today and start improving your chess game! We welcome your feedback and suggestions. Contact us at [email protected].