Board editor
Chesspedition's board editor lets you set up any chess position: pick a piece and click the squares, choose who is to move and which castling is still allowed. It writes the FEN as you go, tells you in plain words if the position is impossible, and opens it in the analysis board with Stockfish 19. Free, no sign-up.
Questions
- What is a FEN?
- A FEN is one line of text that describes a chess position: where every piece stands, who is to move, which castling is still allowed, and the move counters. Any chess program can read it.
- Why does the editor say my position is impossible?
- A game can only be played from a position with exactly one king each, no pawns on the first or last rank, kings that are not next to each other, and the side that has just moved not in check. The editor names the first rule your position breaks.
- How do I analyse the position I set up?
- Press "Analyse this position". It opens in the analysis board, where Stockfish 19 shows its best lines and you can play moves from there.
- Can I start from a position I already have?
- Yes. Paste its FEN into the box and press Load, then change whatever you need.