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

EGTB: win in 2 half-moves

# move score
1 Kc2 win in 1 half-moves
2 Kc3 win in 1 half-moves
3 Kc4 win in 1 half-moves
4 Kb2 loss in 24 half-moves
5 Ka2 loss in 18 half-moves
6 Ka3 loss in 4 half-moves
7 Ka4 loss in 2 half-moves
8 Kb4 loss in 2 half-moves