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

EGTB: draw

# move score
1 Kb5 draw
2 Kc1 draw
3 Kc2 draw
4 Kc3 draw
5 Kc5 draw
6 Kd1 draw
7 Kd3 draw
8 Kd5 draw
9 Kd6 draw
10 Ke1 draw
11 Ke2 draw
12 Ke3 draw
13 Kb6 loss in 2 half-moves
14 Kb7 loss in 2 half-moves
15 Kc7 loss in 2 half-moves
16 Kd7 loss in 2 half-moves