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

EGTB: win in 2 half-moves

# move score
1 Kb2 win in 1 half-moves
2 Kb3 win in 1 half-moves
3 Kb4 win in 1 half-moves
4 Kc4 loss in 54 half-moves
5 Kd4 loss in 52 half-moves
6 Kd2 loss in 50 half-moves
7 Kd3 loss in 50 half-moves
8 Kc2 loss in 48 half-moves