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

EGTB: loss in 7 half-moves

# move score
1 a3 loss in 6 half-moves
2 Kd7 loss in 4 half-moves
3 Ke7 loss in 4 half-moves
4 Kf5 loss in 4 half-moves
5 Kf6 loss in 4 half-moves
6 Kf7 loss in 3 half-moves
7 Kd5 loss in 2 half-moves
8 Kd6 loss in 2 half-moves
9 Ke5 loss in 2 half-moves