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

EGTB: win in 10 half-moves

# move score
1 b4 win in 9 half-moves
2 Kab6 win in 13 half-moves
3 Kb8 win in 13 half-moves
4 Kc8 win in 13 half-moves
5 Kd6 win in 13 half-moves
6 Kd7 win in 13 half-moves
7 Nb7 win in 15 half-moves
8 Nc6 win in 17 half-moves
9 Ka7 loss in 4 half-moves
10 Kab7 loss in 4 half-moves
11 Kcb7 loss in 4 half-moves
12 Ka5 loss in 3 half-moves
13 Kc6 loss in 3 half-moves
14 Kcb6 loss in 3 half-moves
15 Ne6 loss in 2 half-moves
16 Nf7 loss in 2 half-moves