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

EGTB: win in 2 half-moves

# move score
1 b6 win in 1 half-moves
2 Kf4 win in 1 half-moves
3 Kf5 loss in 10 half-moves
4 Kf6 loss in 10 half-moves
5 Kg4 loss in 10 half-moves
6 Kg6 loss in 6 half-moves
7 Kh4 loss in 6 half-moves
8 Kh5 loss in 6 half-moves
9 Kh6 loss in 6 half-moves