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

EGTB: win in 2 half-moves

# move score
1 K5b6 win in 1 half-moves
2 K7b6 win in 1 half-moves
3 Kb4 win in 1 half-moves
4 Kb5 win in 1 half-moves
5 Kb7 win in 1 half-moves
6 Kb8 win in 1 half-moves
7 K5a6 loss in 2 half-moves
8 K7a6 loss in 2 half-moves
9 Ka4 loss in 2 half-moves
10 Ka8 loss in 2 half-moves