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

EGTB: win in 14 half-moves

# move score
1 Kb5 win in 13 half-moves
2 K6b7 win in 15 half-moves
3 Kb8 win in 15 half-moves
4 b5 loss in 4 half-moves
5 K6c7 loss in 4 half-moves
6 K6d7 loss in 4 half-moves
7 K8d7 loss in 4 half-moves
8 Kc5 loss in 4 half-moves
9 Kd5 loss in 4 half-moves
10 Kd8 loss in 4 half-moves
11 Nb5 loss in 4 half-moves
12 Nb7 loss in 4 half-moves
13 K8b7 loss in 3 half-moves
14 K8c7 loss in 3 half-moves
15 Nc4 loss in 2 half-moves
16 Ne4 loss in 2 half-moves
17 Ne8 loss in 2 half-moves
18 Nf5 loss in 2 half-moves
19 Nf7 loss in 2 half-moves