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 Kc5 win in 3 half-moves
3 Kab7 win in 5 half-moves
4 Kaa6 win in 9 half-moves
5 Kc6 win in 9 half-moves
6 Kbb7 win in 11 half-moves
7 Kc7 win in 11 half-moves
8 Ka8 win in 19 half-moves
9 Kb8 win in 19 half-moves
10 Ka5 win in 21 half-moves
11 Kba6 win in 21 half-moves