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

EGTB: win in 4 half-moves

# move score
1 Kd5 win in 3 half-moves
2 Kc4 draw
3 Kc6 draw
4 Kd4 draw
5 Kd6 draw
6 Kb5 loss in 34 half-moves
7 Kb6 loss in 34 half-moves
8 Kb4 loss in 28 half-moves