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

EGTB: win in 4 half-moves

# move score
1 Kc4 win in 3 half-moves
2 Kc2 draw
3 Kc3 draw
4 Kb4 loss in 48 half-moves
5 Ka4 loss in 42 half-moves
6 Ka3 loss in 38 half-moves
7 Kb2 loss in 38 half-moves
8 Ka2 loss in 36 half-moves