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

EGTB: win in 10 half-moves

# move score
1 Kb7 win in 9 half-moves
2 Kb8 loss in 4 half-moves
3 b4 loss in 2 half-moves
4 Kc7 loss in 2 half-moves
5 Ke6 loss in 2 half-moves
6 Ke7 loss in 2 half-moves
7 Ke8 loss in 2 half-moves
8 Kf6 loss in 2 half-moves
9 Kf8 loss in 2 half-moves
10 Kg7 loss in 2 half-moves
11 Kg8 loss in 2 half-moves
12 Ne5 loss in 2 half-moves
13 Ne7 loss in 2 half-moves
14 Nf4 loss in 2 half-moves
15 Nf8 loss in 2 half-moves
16 Nh4 loss in 2 half-moves
17 Nh8 loss in 2 half-moves
18 Kd7 loss in 1 half-moves
19 Kd8 loss in 1 half-moves