Notation
What is a Extended Position Description ("EPD") in chess?
- Notation
- Review
- Records
Extended Position Description ("EPD") is a notation term: a Forsyth–Edwards Notation derivative format that contains the position on the chessboard, but not the game. It is primarily used to test chess engines. This matters because clear notation lets you replay, review, and share chess positions without confusion.
Extended Position Description ("EPD") FAQ
What is a extended position description ("epd") in chess?
Extended Position Description ("EPD") is a notation term: a Forsyth–Edwards Notation derivative format that contains the position on the chessboard, but not the game. It is primarily used to test chess engines. This matters because clear notation lets you replay, review, and share chess positions without confusion.
How do you get better at using a extended position description ("epd")?
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 extended position description ("epd") 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.
