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

EGTB: draw

# move score
1 Kb5 draw
2 Kb6 draw
3 Kc6 draw
4 Kcd6 draw
5 Kd5 draw
6 Kd7 draw
7 Kd8 draw
8 Ke6 draw
9 Ke8 draw
10 Ked6 draw
11 Kf6 draw
12 Kf7 draw
13 Kf8 loss in 4 half-moves
14 Kb4 loss in 2 half-moves
15 Kc4 loss in 2 half-moves
16 Kd4 loss in 2 half-moves