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

EGTB: loss in 5 half-moves

# move score
1 Kd5 loss in 4 half-moves
2 a3 loss in 2 half-moves
3 Kd4 loss in 2 half-moves
4 Kd6 loss in 2 half-moves
5 Ke4 loss in 2 half-moves
6 Ke6 loss in 2 half-moves
7 Kf5 loss in 2 half-moves
8 Kf4 loss in 1 half-moves
9 Kf6 loss in 1 half-moves