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 Kc5 draw
3 Kc6 draw
4 Kb7 loss in 48 half-moves
5 Ka5 loss in 42 half-moves
6 Kb5 loss in 42 half-moves
7 Ka6 loss in 40 half-moves
8 Ka7 loss in 40 half-moves