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

EGTB: win in 6 half-moves

# move score
1 Kc7 win in 5 half-moves
2 Ka6 draw
3 Kb6 draw
4 Kb8 draw
5 Kc6 draw
6 Kc8 draw
7 Ka7 loss in 16 half-moves
8 Ka8 loss in 16 half-moves