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

EGTB: win in 4 half-moves

# move score
1 Ke6 win in 3 half-moves
2 Kff5 win in 5 half-moves
3 Kgf5 win in 5 half-moves
4 Ke5 win in 7 half-moves
5 Kgg5 win in 7 half-moves
6 Kh5 win in 9 half-moves
7 Kh6 win in 9 half-moves
8 Kfg5 win in 11 half-moves
9 Kgg7 win in 11 half-moves
10 Kh7 win in 11 half-moves
11 Kfg7 win in 15 half-moves
12 Ke7 loss in 2 half-moves
13 Kff7 loss in 2 half-moves
14 Kgf7 loss in 2 half-moves