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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Kb3 draw
3 Kb4 draw
4 Kb8 draw
5 Kc3 draw
6 Kc5 draw
7 Kc7 draw
8 Kd3 draw
9 Kd4 draw
10 Kd5 draw
11 Kd7 draw
12 Kd8 draw
13 Kb7 loss in 2 half-moves