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

EGTB: loss in 5 half-moves

# move score
1 Kf6 loss in 4 half-moves
2 Kf7 loss in 4 half-moves
3 Kf8 loss in 4 half-moves
4 Kg6 loss in 4 half-moves
5 Kh6 loss in 4 half-moves
6 a3 loss in 3 half-moves
7 Kg8 loss in 3 half-moves
8 Kh7 loss in 3 half-moves
9 Kh8 loss in 3 half-moves