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

EGTB: win in 1 half-moves

# move score
1 gxf8=K win in 5 half-moves
2 gxf8=B loss in 4 half-moves
3 gxf8=N loss in 2 half-moves
4 gxf8=Q loss in 2 half-moves
5 gxf8=R loss in 2 half-moves
6 Rxf8 loss in 2 half-moves