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

EGTB: loss in 1 half-moves

# move score
1 bxc8=K loss in 2 half-moves
2 bxc8=Q loss in 2 half-moves
3 bxc8=R loss in 2 half-moves
4 bxc8=B loss in 1 half-moves
5 bxc8=N loss in 1 half-moves