Click on the third or sixth rank to set the en passant target square.

EGTB: loss in 1 half-moves

# move score
1 fxe1=B loss in 1 half-moves
2 fxe1=K loss in 1 half-moves
3 fxe1=N loss in 1 half-moves
4 fxe1=Q loss in 1 half-moves
5 fxe1=R loss in 1 half-moves