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

EGTB: loss in 1 half-moves

# move score
1 bxa1=B loss in 2 half-moves
2 bxa1=K loss in 2 half-moves
3 bxa1=N loss in 2 half-moves
4 bxa1=Q loss in 2 half-moves
5 bxa1=R loss in 2 half-moves