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

EGTB: draw

# move score
1 Kb5 draw
2 Kc5 draw
3 Kc6 loss in 56 half-moves
4 Ka5 loss in 52 half-moves
5 Ka6 loss in 48 half-moves
6 Kc7 loss in 42 half-moves
7 Ka7 loss in 32 half-moves
8 Kb7 loss in 32 half-moves