Quick Start
Choose how you want to analyze your chess game
Import Game
Import games from Chess.com, Lichess, or paste PGN for comprehensive analysis
Image to FEN
Upload a chessboard image and instantly convert it to FEN notation for analysis
Drop image here or click to browse
Supports JPG, PNG, GIF (Max 10MB)
Opening Explorer
Explore chess openings, learn optimal moves, and improve your early game strategy with our extensive database.
Explore OpeningsElo Calculator
Calculate expected rating changes and learn the mathematical formula behind the chess Elo rating system.
Calculate RatingMaster Your Game with Chessions
Import games, convert board images to PGN, and get analysis with Stockfish. Elevate your chess strategy to the next level.
Powerful Features
Everything you need to improve your chess game
Import from Anywhere
Seamlessly import your games directly from Chess.com, Lichess, or upload PGN files. Your entire chess history, one click away.
Image to PGN
Snap a photo of a chessboard or upload an image, and our will instantly convert it into a digital PGN for analysis.
Stockfish Engine
Get world-class analysis powered by Stockfish. Uncover blunders, find brilliant moves, and understand the engine's evaluation.
Interactive Puzzles
Train your tactics with chess puzzles. Track your rating, build your streak, and climb the leaderboard.
Special Thanks To
Latest Chess Guides & Articles
Expand your chess knowledge with our in-depth guides.
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The Origin of the Elo Rating System: How Chess Found Its Numbers
Discover the history behind the Elo rating system, created by Arpad Elo, and how it transformed ches...
Read article →Advanced Chess Analysis & Game Evaluation
Welcome to Chessions, your premier platform for advanced chess analysis and game evaluation. Whether you are a beginner looking to understand basic principles or an advanced player refining complex strategies, our comprehensive suite of chess tools is designed to elevate your game. Utilizing the powerful Stockfish engine, we provide deep, objective evaluations of any chess position.
Why Analyze Your Chess Games?
Analyzing your chess games is the single most effective way to improve your rating. By reviewing your past games, you can identify recurring mistakes, missed tactical opportunities, and positional blunders. Chessions allows you to import games directly via PGN or connect your accounts from popular platforms to streamline the analysis process. Our engine evaluation highlights blunders, mistakes, inaccuracies, and even brilliant moves, helping you understand the exact turning points in your matches.
Image to FEN Converter
Have you ever found an interesting chess puzzle in a book or a screenshot of a game, but didn't want to set up the board manually? Our advanced Image to FEN (Forsyth-Edwards Notation) converter uses computer vision to instantly recognize board positions from images. Simply upload a picture, and our system will generate the exact FEN, allowing you to seamlessly transition from a static image to dynamic engine analysis.
Interactive Chess Puzzles
Sharpen your tactical vision with our interactive chess puzzles. Sourced from real master games, these puzzles help you recognize patterns, find forced mates, and improve your overall calculation skills. Track your puzzle rating, build your streak, and see how you rank on our global leaderboard.
Mastering the Opening Explorer
The first few moves of a chess game often dictate its entire course. With our extensive Opening Explorer, you can study millions of master-level games and discover the best responses to common openings like the Sicilian Defense, Queen's Gambit, or the Ruy Lopez. Understand the win rates, draw percentages, and optimal continuations to build a robust and unshakeable opening repertoire.