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

EGTB: win in 10 half-moves

# move score
1 b3 win in 9 half-moves
2 Ka6 win in 11 half-moves
3 Ka7 win in 11 half-moves
4 Ka8 win in 11 half-moves
5 Kb6 win in 11 half-moves
6 Kd7 win in 11 half-moves
7 Kdc7 win in 11 half-moves
8 Nd7 win in 11 half-moves
9 Kb8 win in 13 half-moves
10 Kdc8 win in 13 half-moves
11 Na4 win in 13 half-moves
12 Kc6 win in 15 half-moves
13 Ke7 loss in 4 half-moves
14 Ke8 loss in 4 half-moves
15 Na6 loss in 4 half-moves
16 Ne4 loss in 4 half-moves
17 Ne6 loss in 4 half-moves
18 Kbc7 loss in 3 half-moves
19 Kbc8 loss in 3 half-moves
20 Nb3 loss in 2 half-moves
21 Nd3 loss in 2 half-moves