Chess Position Inspector
Explore a chess position on an interactive board, play legal moves, browse the game, and export FEN or PGN.
What is a FEN chess position?
Forsyth–Edwards Notation records the pieces, side to move, castling rights, en passant target, and move counters for a chess position. This tool parses a FEN and lists legal moves.
Your game
White to move · Position 0 / 0
20 legal moves
Moves & notes
Notes are included in the PGN export. Curly braces are reserved by PGN and removed from note text.
Game details
Open another position
Three simple steps
How to use Chess Position Inspector
Load a FEN position or try the starting board.
Select a piece and a legal destination, or enter a SAN move.
Browse the move history, add position notes, and export the game.
Common questions
Good to know
Understand the result.
Keep the original.
Is this tool free, and are my files uploaded?
This tool is free with no account required. The work happens in your browser. Your input and files are not sent to a processing server.
What are the limits and details?
This checks chess rules and available moves. It is not a chess engine and does not evaluate the best move or prove that a position is historically reachable.
Limits: one FEN or PGN main line, up to 100,000 characters and 2,000 moves by one side.