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

EGTB: loss in 4 half-moves

# move score
1 Kh5 loss in 3 half-moves
2 a3 loss in 2 half-moves
3 Kf3 loss in 2 half-moves
4 Kf5 loss in 2 half-moves
5 Kg5 loss in 2 half-moves
6 Kh3 loss in 2 half-moves
7 Kh4 loss in 2 half-moves
8 Kf4 loss in 1 half-moves
9 Kg3 loss in 1 half-moves