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

EGTB: win in 2 half-moves

# move score
1 Kb8 win in 1 half-moves
2 Kd5 win in 1 half-moves
3 Kd6 win in 1 half-moves
4 Kd7 win in 1 half-moves
5 b5 loss in 2 half-moves
6 Ka6 loss in 2 half-moves
7 Ka7 loss in 2 half-moves
8 Kc6 loss in 2 half-moves
9 Kc7 loss in 2 half-moves
10 Ke5 loss in 2 half-moves
11 Ke7 loss in 2 half-moves
12 Kf5 loss in 2 half-moves
13 Kf6 loss in 2 half-moves
14 Kf7 loss in 2 half-moves
15 Ne4 loss in 2 half-moves
16 Nf3 loss in 2 half-moves
17 Nf7 loss in 2 half-moves
18 Nh3 loss in 2 half-moves
19 Nh7 loss in 2 half-moves
20 Ka8 loss in 1 half-moves
21 Kc8 loss in 1 half-moves