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

EGTB: win in 10 half-moves

# move score
1 Kab4 win in 9 half-moves
2 Kb5 win in 9 half-moves
3 Kc2 win in 9 half-moves
4 Kc3 win in 9 half-moves
5 Kc4 win in 9 half-moves
6 Ka5 win in 11 half-moves
7 Kaa3 win in 11 half-moves
8 Kbb4 win in 11 half-moves
9 Ka2 win in 13 half-moves
10 Kb2 win in 13 half-moves
11 Kba3 win in 13 half-moves