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

EGTB: win in 4 half-moves

# move score
1 Kc6 win in 3 half-moves
2 Kd6 win in 3 half-moves
3 Ke6 win in 3 half-moves
4 Kc7 loss in 32 half-moves
5 Ke7 loss in 32 half-moves
6 Ke8 loss in 20 half-moves
7 Kd8 loss in 18 half-moves
8 Kc8 loss in 16 half-moves