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

EGTB: win in 12 half-moves

# move score
1 Kb7 win in 11 half-moves
2 Kb8 win in 11 half-moves
3 b4 loss in 4 half-moves
4 Kb6 loss in 4 half-moves
5 Kc6 loss in 4 half-moves
6 Kc8 loss in 4 half-moves
7 Kcd7 loss in 4 half-moves
8 Kcd8 loss in 4 half-moves
9 Kd6 loss in 4 half-moves
10 Ke7 loss in 4 half-moves
11 Ked7 loss in 4 half-moves
12 Ked8 loss in 4 half-moves
13 Kf7 loss in 4 half-moves
14 Kf8 loss in 4 half-moves
15 Nc5 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