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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Ka4 draw
3 Ka7 draw
4 Kaa5 draw
5 Kab6 draw
6 Kb4 draw
7 Kba5 draw
8 Kbb6 draw
9 Kc5 draw
10 Kc6 draw
11 Kc4 loss in 2 half-moves