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 Ka6 win in 15 half-moves
3 Kab6 win in 15 half-moves
4 Kc6 win in 15 half-moves
5 Kb7 win in 17 half-moves
6 Na7 win in 19 half-moves
7 Nb6 win in 19 half-moves
8 Ka4 loss in 4 half-moves
9 Kb4 loss in 4 half-moves
10 Kb8 loss in 3 half-moves
11 Kcb6 loss in 3 half-moves
12 Kd6 loss in 3 half-moves
13 Kd7 loss in 3 half-moves
14 Kd8 loss in 3 half-moves
15 Nd6 loss in 2 half-moves
16 Ne7 loss in 2 half-moves