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

EGTB: win in 4 half-moves

# move score
1 Kc7 win in 3 half-moves
2 Kb8 draw
3 Kd8 draw
4 Ke5 draw
5 Kf4 draw
6 Kf6 draw
7 Kg5 draw
8 Kg6 draw
9 Kd7 loss in 4 half-moves
10 Ke6 loss in 4 half-moves
11 Kb7 loss in 2 half-moves
12 Ke4 loss in 2 half-moves
13 Kg4 loss in 2 half-moves