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 Ka4 draw
3 Kc3 draw
4 Ka3 loss in 24 half-moves
5 Kb2 loss in 16 half-moves
6 Kc2 loss in 16 half-moves
7 Ka2 loss in 10 half-moves
8 Kc4 loss in 2 half-moves