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

EGTB: win in 12 half-moves

# move score
1 Kb5 win in 11 half-moves
2 K6b7 win in 13 half-moves
3 K8b7 win in 13 half-moves
4 Kb8 win in 13 half-moves
5 b5 loss in 4 half-moves
6 K6c7 loss in 4 half-moves
7 K6d7 loss in 4 half-moves
8 K8c7 loss in 4 half-moves
9 K8d7 loss in 4 half-moves
10 Kc5 loss in 4 half-moves
11 Kd5 loss in 4 half-moves
12 Kd6 loss in 4 half-moves
13 Kd8 loss in 4 half-moves
14 Nc5 loss in 4 half-moves
15 Nc7 loss in 4 half-moves
16 Nd4 loss in 4 half-moves
17 Nd8 loss in 4 half-moves
18 Nf4 loss in 2 half-moves
19 Nf8 loss in 2 half-moves
20 Ng5 loss in 2 half-moves
21 Ng7 loss in 2 half-moves