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

EGTB: loss in 1 half-moves

# move score
1 bxc1=B loss in 2 half-moves
2 bxc1=K loss in 2 half-moves
3 bxc1=N loss in 2 half-moves
4 bxc1=Q loss in 2 half-moves
5 bxc1=R loss in 2 half-moves