Notation
What is a Forsyth–Edwards Notation ("FEN") in chess?
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Forsyth–Edwards Notation ("FEN") is a notation term: a standard notation for describing a particular board position of a chess game. The purpose of FEN notation is to provide all the necessary information to restart a game from a particular position. This matters because clear notation lets you replay, review, and share chess positions without confusion.
Forsyth–Edwards Notation ("FEN") FAQ
What is a forsyth–edwards notation ("fen") in chess?
Forsyth–Edwards Notation ("FEN") is a notation term: a standard notation for describing a particular board position of a chess game. The purpose of FEN notation is to provide all the necessary information to restart a game from a particular position. This matters because clear notation lets you replay, review, and share chess positions without confusion.
How do you get better at using a forsyth–edwards notation ("fen")?
Good notation makes review possible. Use the term to understand or reconstruct the game accurately.
Train this pattern on your own games
Reading a definition is not the same as spotting the pattern with a clock running. Chessiro's free game review runs Stockfish 18 over every move you play, names the concept behind each mistake, and turns the positions where it cost you into training puzzles. You can also see the idea in action in the classic games collection, where the greatest players in history demonstrate it.
Free game review
See where forsyth–edwards notation ("fen") decides your games
Chessiro reviews your games with an AI coach that names the concept behind every mistake, then drills you on the exact positions where it happened until you stop repeating them.
