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

EGTB: win in 10 half-moves

# move score
1 b5 win in 9 half-moves
2 Ka7 win in 13 half-moves
3 Ka8 win in 13 half-moves
4 Kb8 win in 13 half-moves
5 Kd8 win in 13 half-moves
6 Ke7 win in 13 half-moves
7 Nc8 win in 15 half-moves
8 Kc6 loss in 4 half-moves
9 Kc7 loss in 4 half-moves
10 Kc8 loss in 4 half-moves
11 Kd7 loss in 4 half-moves
12 Ka6 loss in 3 half-moves
13 Kf7 loss in 2 half-moves
14 Kf8 loss in 2 half-moves
15 Nb5 loss in 2 half-moves
16 Nc4 loss in 2 half-moves
17 Ne4 loss in 2 half-moves
18 Nf5 loss in 2 half-moves
19 Nf7 loss in 2 half-moves