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

EGTB: win in 4 half-moves

# move score
1 g4 win in 3 half-moves
2 Rh1 loss in 2 half-moves
3 Rh4 loss in 2 half-moves
4 Rh5 loss in 2 half-moves
5 Rh6 loss in 2 half-moves
6 Rh7 loss in 2 half-moves
7 Rh8 loss in 2 half-moves
8 Rh2 loss in 1 half-moves