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

EGTB: win in 2 half-moves

# move score
1 b5 win in 1 half-moves
2 Ka6 win in 1 half-moves
3 Kb4 loss in 2 half-moves
4 Kb5 loss in 2 half-moves
5 Ka4 loss in 1 half-moves
6 Kd6 loss in 1 half-moves
7 Kd7 loss in 1 half-moves
8 Kd8 loss in 1 half-moves
9 Ke6 loss in 1 half-moves
10 Ke8 loss in 1 half-moves
11 Kf7 loss in 1 half-moves
12 Kf8 loss in 1 half-moves
13 Nd5 loss in 1 half-moves
14 Nd7 loss in 1 half-moves
15 Ne4 loss in 1 half-moves
16 Ne8 loss in 1 half-moves
17 Ng4 loss in 1 half-moves
18 Ng8 loss in 1 half-moves
19 Nh5 loss in 1 half-moves
20 Nh7 loss in 1 half-moves