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

EGTB: win in 14 half-moves

# move score
1 Kb7 win in 13 half-moves
2 Kb8 win in 13 half-moves
3 b5 loss in 4 half-moves
4 Kc6 loss in 4 half-moves
5 Kc8 loss in 4 half-moves
6 Kd6 loss in 4 half-moves
7 Kd7 loss in 4 half-moves
8 Ke7 loss in 4 half-moves
9 Ke8 loss in 4 half-moves
10 Kf7 loss in 4 half-moves
11 Nb7 loss in 4 half-moves
12 Nc6 loss in 4 half-moves
13 Ne6 loss in 4 half-moves
14 Kg7 loss in 2 half-moves
15 Kg8 loss in 2 half-moves
16 Nf7 loss in 2 half-moves