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

EGTB: win in 2 half-moves

# move score
1 Ka4 win in 1 half-moves
2 Ka5 win in 1 half-moves
3 Ka6 win in 1 half-moves
4 Kb4 loss in 40 half-moves
5 Kb6 loss in 40 half-moves
6 Kc5 loss in 40 half-moves
7 Kc4 loss in 38 half-moves
8 Kc6 loss in 2 half-moves