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

EGTB: win in 4 half-moves

# move score
1 Kc3 win in 3 half-moves
2 Kc4 win in 3 half-moves
3 Kc5 win in 3 half-moves
4 Kb5 win in 5 half-moves
5 Kc6 win in 5 half-moves
6 Ka4 win in 7 half-moves
7 Ka5 win in 7 half-moves
8 Kb6 win in 7 half-moves
9 Kc7 win in 7 half-moves
10 Kc8 win in 9 half-moves
11 Kb3 win in 11 half-moves
12 Kb8 win in 13 half-moves
13 Ka3 draw
14 Ka6 draw
15 Ka7 draw
16 Ka8 draw