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

EGTB: win in 2 half-moves

# move score
1 Kb6 win in 1 half-moves
2 Kc6 win in 1 half-moves
3 Kb4 loss in 50 half-moves
4 Kc4 loss in 50 half-moves
5 Ka4 loss in 48 half-moves
6 Ka5 loss in 2 half-moves
7 Ka6 loss in 2 half-moves
8 Kc5 loss in 2 half-moves