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

EGTB: win in 14 half-moves

# move score
1 b4 win in 13 half-moves
2 Kb8 win in 15 half-moves
3 Kd5 win in 17 half-moves
4 Na6 win in 17 half-moves
5 Na8 win in 17 half-moves
6 Kb7 loss in 4 half-moves
7 Kc5 loss in 4 half-moves
8 Kc6 loss in 4 half-moves
9 Kcd7 loss in 4 half-moves
10 Kd8 loss in 4 half-moves
11 Kdd7 loss in 3 half-moves
12 Ke5 loss in 2 half-moves
13 Ke6 loss in 2 half-moves
14 Ke7 loss in 2 half-moves
15 Nd5 loss in 2 half-moves
16 Ne6 loss in 2 half-moves
17 Ne8 loss in 2 half-moves