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 Ka6 win in 11 half-moves
3 Kc8 win in 11 half-moves
4 Ka5 win in 13 half-moves
5 Kd7 win in 13 half-moves
6 Ka7 win in 15 half-moves
7 Kbb7 win in 15 half-moves
8 Kcb7 win in 15 half-moves
9 Kd8 win in 15 half-moves
10 Na4 win in 15 half-moves
11 Nb7 win in 17 half-moves
12 Na6 win in 19 half-moves
13 Kb8 loss in 4 half-moves
14 Kbc6 loss in 4 half-moves
15 Kd6 loss in 4 half-moves
16 Kcc6 loss in 3 half-moves
17 Nb3 loss in 2 half-moves
18 Nd3 loss in 2 half-moves
19 Nd7 loss in 2 half-moves
20 Ne4 loss in 2 half-moves
21 Ne6 loss in 2 half-moves