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

EGTB: win in 2 half-moves

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