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

EGTB: win in 4 half-moves

# move score
1 Kb2 win in 3 half-moves
2 Kc2 win in 3 half-moves
3 Kd3 win in 3 half-moves
4 Kb1 win in 15 half-moves
5 Kb3 win in 15 half-moves
6 Kb4 win in 15 half-moves
7 Kc3 win in 15 half-moves
8 Kb5 draw
9 Kd1 draw
10 Kd2 draw
11 Kd4 draw
12 Kd5 draw
13 Kc5 loss in 2 half-moves