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

EGTB: draw

# move score
1 Ka7 draw
2 Ka8 draw
3 Kb4 draw
4 Kb5 draw
5 Kb7 draw
6 Kc4 draw
7 Kc6 draw
8 Kc8 draw
9 Kd4 draw
10 Kd5 draw
11 Kd6 draw
12 Kb6 loss in 4 half-moves
13 Kc7 loss in 4 half-moves