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

EGTB: win in 4 half-moves

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