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

EGTB: win in 2 half-moves

# move score
1 b5 win in 1 half-moves
2 Kh5 win in 1 half-moves
3 Kf5 loss in 2 half-moves
4 Kf6 loss in 2 half-moves
5 Kf7 loss in 2 half-moves
6 Kg5 loss in 2 half-moves
7 Kg7 loss in 2 half-moves
8 Kh6 loss in 2 half-moves
9 Kh7 loss in 2 half-moves