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

EGTB: win in 2 half-moves

# move score
1 Kb4 win in 1 half-moves
2 Kc4 win in 1 half-moves
3 Kd4 win in 1 half-moves
4 Kd3 loss in 56 half-moves
5 Kb2 loss in 50 half-moves
6 Kd2 loss in 46 half-moves
7 Kc2 loss in 42 half-moves
8 Kb3 loss in 2 half-moves