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

EGTB: win in 1 half-moves

# move score
1 Rxa7 win in 1 half-moves
2 dxc8=B loss in 2 half-moves
3 dxc8=K loss in 2 half-moves
4 dxc8=N loss in 2 half-moves
5 dxc8=Q loss in 2 half-moves
6 dxc8=R loss in 2 half-moves