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

EGTB: win in 10 half-moves

# move score
1 Kb4 win in 9 half-moves
2 K5b5 win in 11 half-moves
3 K6b5 win in 11 half-moves
4 K5b6 win in 13 half-moves
5 K6b6 win in 13 half-moves
6 Kb7 win in 13 half-moves
7 Kc7 win in 13 half-moves
8 Kd7 win in 13 half-moves
9 K5d5 loss in 2 half-moves
10 K5d6 loss in 2 half-moves
11 K6d5 loss in 2 half-moves
12 K6d6 loss in 2 half-moves
13 Kc4 loss in 2 half-moves
14 Kd4 loss in 2 half-moves