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

EGTB: win in 12 half-moves

# move score
1 b4 win in 11 half-moves
2 Ka7 win in 11 half-moves
3 Ke7 win in 11 half-moves
4 Kb7 win in 13 half-moves
5 Kc8 win in 13 half-moves
6 Kd7 win in 13 half-moves
7 Ke8 win in 13 half-moves
8 Na5 win in 15 half-moves
9 Kb6 win in 17 half-moves
10 Kc7 win in 17 half-moves
11 Nb8 win in 17 half-moves
12 Na7 loss in 4 half-moves
13 Ka5 loss in 3 half-moves
14 Nb4 loss in 2 half-moves
15 Nd4 loss in 2 half-moves
16 Ne5 loss in 2 half-moves
17 Ne7 loss in 2 half-moves