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

EGTB: win in 4 half-moves

# move score
1 Kab3 win in 3 half-moves
2 Ka4 draw
3 Ka5 draw
4 Kb1 draw
5 Kb2 draw
6 Kb5 draw
7 Kba3 draw
8 Kbb3 draw
9 Kc3 draw
10 Ka1 loss in 2 half-moves
11 Kaa3 loss in 2 half-moves
12 Kc4 loss in 2 half-moves
13 Kc5 loss in 1 half-moves