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

EGTB: win in 6 half-moves

# move score
1 b4 win in 5 half-moves
2 Ka7 win in 11 half-moves
3 Kab7 win in 11 half-moves
4 Kb6 win in 11 half-moves
5 Kb8 win in 11 half-moves
6 Kc7 win in 11 half-moves
7 Kd7 win in 11 half-moves
8 Kd8 win in 11 half-moves
9 Nd8 win in 11 half-moves
10 Nc5 win in 13 half-moves
11 Nc7 win in 13 half-moves
12 Kcb7 loss in 4 half-moves
13 Ka5 loss in 3 half-moves
14 Nd4 loss in 2 half-moves
15 Nf4 loss in 2 half-moves
16 Nf8 loss in 2 half-moves
17 Ng5 loss in 2 half-moves
18 Ng7 loss in 2 half-moves