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

EGTB: win in 2 half-moves

# move score
1 Ka5 win in 1 half-moves
2 Kb5 win in 1 half-moves
3 Kc5 win in 1 half-moves
4 Kc4 loss in 54 half-moves
5 Kc3 loss in 52 half-moves
6 Ka4 loss in 30 half-moves
7 Ka3 loss in 28 half-moves
8 Kb3 loss in 28 half-moves