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

EGTB: win in 4 half-moves

# move score
1 Ka6 win in 3 half-moves
2 Kab6 win in 3 half-moves
3 Kab7 win in 3 half-moves
4 Kc7 win in 3 half-moves
5 Kb5 win in 7 half-moves
6 Kb8 win in 9 half-moves
7 Kcb7 win in 9 half-moves
8 Ka8 win in 41 half-moves
9 Kcb6 win in 45 half-moves
10 Kc5 draw
11 Kd7 draw
12 Kd5 loss in 2 half-moves
13 Kd6 loss in 2 half-moves