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

EGTB: draw

# move score
1 Ka4 draw
2 Ka5 draw
3 Ka6 draw
4 Kb1 draw
5 Kb2 draw
6 Kb4 draw
7 Kb6 draw
8 Kc1 draw
9 Kc3 draw
10 Kc5 draw
11 Kc6 draw
12 Kd1 draw
13 Kd2 draw
14 Kd3 draw
15 Kb3 loss in 4 half-moves
16 Kc4 loss in 4 half-moves