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

EGTB: loss in 1 half-moves

# move score
1 hxg1=B loss in 1 half-moves
2 hxg1=K loss in 1 half-moves
3 hxg1=N loss in 1 half-moves
4 hxg1=Q loss in 1 half-moves
5 hxg1=R loss in 1 half-moves