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 Kb3 draw
3 Kc5 draw
4 Kd5 draw
5 Kb5 loss in 42 half-moves
6 Kb4 loss in 36 half-moves
7 Kc3 loss in 2 half-moves
8 Kd3 loss in 2 half-moves