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 Kd6 win in 11 half-moves
4 Ke6 win in 11 half-moves
5 Ke7 win in 11 half-moves
6 Kb7 win in 13 half-moves
7 Kc6 win in 13 half-moves
8 Kd8 win in 13 half-moves
9 Kb8 win in 15 half-moves
10 Kc7 win in 15 half-moves
11 Ke8 win in 15 half-moves
12 Na6 win in 17 half-moves
13 Kc8 win in 23 half-moves
14 Nb7 loss in 4 half-moves
15 Na4 loss in 2 half-moves
16 Nb3 loss in 2 half-moves
17 Nd3 loss in 2 half-moves
18 Ne4 loss in 2 half-moves
19 Ne6 loss in 2 half-moves