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

EGTB: win in 1 half-moves

# move score
1 Rxf1 win in 3 half-moves
2 gxf1=Q win in 7 half-moves
3 gxf1=R win in 7 half-moves
4 gxf1=B win in 11 half-moves
5 gxf1=N win in 17 half-moves
6 gxf1=K win in 33 half-moves