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

EGTB: win in 4 half-moves

# move score
1 Kc5 win in 3 half-moves
2 Kd5 win in 3 half-moves
3 Kd6 win in 3 half-moves
4 Kb5 draw
5 Kb6 draw
6 Kc7 draw
7 Kd7 draw
8 Kb7 loss in 2 half-moves