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 Ka5 win in 15 half-moves
3 Ka6 win in 15 half-moves
4 Ka7 win in 15 half-moves
5 Kbc6 win in 15 half-moves
6 Kc5 win in 15 half-moves
7 Kc8 win in 15 half-moves
8 Kd8 win in 15 half-moves
9 Na6 win in 15 half-moves
10 Na8 win in 15 half-moves
11 Kb7 loss in 4 half-moves
12 Kd6 loss in 4 half-moves
13 Kdc6 loss in 4 half-moves
14 Ke6 loss in 2 half-moves
15 Ke7 loss in 2 half-moves
16 Ke8 loss in 2 half-moves
17 Nd5 loss in 2 half-moves
18 Ne6 loss in 2 half-moves
19 Ne8 loss in 2 half-moves