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

EGTB: win in 4 half-moves

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