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 Kb7 draw
4 Kc5 draw
5 Kd5 draw
6 Kd6 draw
7 Kd7 draw
8 Ke2 draw
9 Kf1 draw
10 Kf2 draw
11 Kc7 loss in 2 half-moves
12 Kd1 loss in 2 half-moves
13 Kd2 loss in 2 half-moves