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

EGTB: win in 4 half-moves

# move score
1 Kg6 win in 3 half-moves
2 Kh6 win in 3 half-moves
3 Kg8 win in 11 half-moves
4 b6 win in 19 half-moves
5 Kh8 win in 19 half-moves
6 Kg7 loss in 1 half-moves