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

EGTB: win in 2 half-moves

# move score
1 Kg7 win in 1 half-moves
2 Kh8 win in 1 half-moves
3 Kf7 loss in 2 half-moves
4 Kf8 loss in 2 half-moves
5 Kh7 loss in 2 half-moves
6 g7 loss in 1 half-moves