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 b5 loss in 4 half-moves
3 Kb5 loss in 4 half-moves
4 Kc5 loss in 4 half-moves
5 Kc7 loss in 4 half-moves
6 Kd5 loss in 4 half-moves
7 Kd6 loss in 4 half-moves
8 Kd7 loss in 4 half-moves
9 Ke7 loss in 4 half-moves
10 Kf7 loss in 4 half-moves
11 Nc7 loss in 4 half-moves
12 Nd6 loss in 4 half-moves
13 Kg7 loss in 2 half-moves
14 Kg8 loss in 2 half-moves
15 Nf6 loss in 2 half-moves
16 Ng7 loss in 2 half-moves