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

EGTB: win in 4 half-moves

# move score
1 Kaa5 win in 3 half-moves
2 Kba5 win in 3 half-moves
3 Kaa7 draw
4 Kab7 draw
5 Kba7 draw
6 Kbb7 draw
7 Kc6 draw
8 Kc7 draw
9 Kab5 loss in 2 half-moves
10 Kbb5 loss in 2 half-moves
11 Kc5 loss in 2 half-moves