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

EGTB: win in 4 half-moves

# move score
1 b6 win in 3 half-moves
2 Kf7 win in 3 half-moves
3 Kf6 draw
4 Kg7 draw
5 Kh7 draw
6 Kh6 loss in 8 half-moves
7 Kf5 loss in 4 half-moves
8 Kh5 loss in 4 half-moves
9 Kg5 loss in 1 half-moves