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

EGTB: draw

# move score
1 Kb7 draw
2 Kb8 draw
3 Kc2 draw
4 Kc3 draw
5 Kc7 draw
6 Kd2 draw
7 Kd8 draw
8 Ke2 draw
9 Ke3 draw
10 Kc4 loss in 2 half-moves
11 Kd4 loss in 2 half-moves
12 Kd7 loss in 2 half-moves
13 Ke4 loss in 2 half-moves