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 Kb5 loss in 36 half-moves
3 Kb6 loss in 36 half-moves
4 Kc4 loss in 36 half-moves
5 Kc6 loss in 36 half-moves
6 Kb4 loss in 32 half-moves
7 Kd5 loss in 2 half-moves
8 Kd6 loss in 2 half-moves