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

EGTB: win in 2 half-moves

# move score
1 Kb5 win in 1 half-moves
2 Kc5 win in 1 half-moves
3 Kd5 win in 1 half-moves
4 Kb6 loss in 40 half-moves
5 Kb7 loss in 34 half-moves
6 Kc7 loss in 34 half-moves
7 Kd6 loss in 2 half-moves
8 Kd7 loss in 2 half-moves