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

EGTB: win in 2 half-moves

# move score
1 b4 win in 1 half-moves
2 Ka7 win in 1 half-moves
3 Kab7 win in 1 half-moves
4 Ka5 loss in 1 half-moves
5 Kab6 loss in 1 half-moves
6 Kb8 loss in 1 half-moves
7 Kc6 loss in 1 half-moves
8 Kc8 loss in 1 half-moves
9 Kcb6 loss in 1 half-moves
10 Kcb7 loss in 1 half-moves
11 Kd6 loss in 1 half-moves
12 Kd7 loss in 1 half-moves
13 Kd8 loss in 1 half-moves
14 Ne4 loss in 1 half-moves
15 Ne6 loss in 1 half-moves
16 Nf3 loss in 1 half-moves
17 Nf7 loss in 1 half-moves
18 Nh3 loss in 1 half-moves
19 Nh7 loss in 1 half-moves