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

EGTB: win in 4 half-moves

# move score
1 Kd4 win in 3 half-moves
2 Kc4 loss in 26 half-moves
3 Kd6 loss in 26 half-moves
4 Kd5 loss in 24 half-moves
5 Kb4 loss in 22 half-moves
6 Kb5 loss in 22 half-moves
7 Kc6 loss in 20 half-moves
8 Kb6 loss in 18 half-moves