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

EGTB: win in 16 half-moves

# move score
1 b5 win in 15 half-moves
2 Ke6 win in 17 half-moves
3 Kb7 loss in 4 half-moves
4 Kb8 loss in 4 half-moves
5 Kc5 loss in 4 half-moves
6 Kc8 loss in 4 half-moves
7 Kcc6 loss in 4 half-moves
8 Kcd7 loss in 4 half-moves
9 Kd5 loss in 4 half-moves
10 Kd8 loss in 4 half-moves
11 Kdd7 loss in 4 half-moves
12 Ke5 loss in 4 half-moves
13 Ke7 loss in 4 half-moves
14 Kdc6 loss in 3 half-moves