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

EGTB: win in 4 half-moves

# move score
1 Kd3 win in 3 half-moves
2 Kd4 win in 3 half-moves
3 Kb3 loss in 6 half-moves
4 Kb4 loss in 6 half-moves
5 Kc3 loss in 6 half-moves
6 Kb5 loss in 2 half-moves
7 Kc5 loss in 2 half-moves
8 Kd5 loss in 2 half-moves