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

EGTB: win in 2 half-moves

# move score
1 a3 win in 1 half-moves
2 Ke6 win in 1 half-moves
3 Kg6 win in 1 half-moves
4 Ke4 loss in 2 half-moves
5 Kf4 loss in 2 half-moves
6 Kg4 loss in 2 half-moves
7 Kg5 loss in 2 half-moves
8 Ke5 loss in 1 half-moves
9 Kf6 loss in 1 half-moves