Set up any chess position: drag pieces from the palettes, paint squares with a selected piece, and fine-tune the side to move, castling rights, and en passant. The FEN updates live — copy it, share it as a link, or send the position straight to the engine.
Drag pieces on the board, or drag them off to remove. Pick a spare piece to place more.
FEN (Forsyth–Edwards Notation) is the standard one-line description of a chess position — read more in the glossary. To study full games move by move, use the analysis board, browse opening guides, or train with the tactics trainer.