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 Kc2 win in 1 half-moves
3 Kd2 win in 1 half-moves
4 Kc4 loss in 46 half-moves
5 Kb4 loss in 40 half-moves
6 Kb3 loss in 2 half-moves
7 Kd3 loss in 2 half-moves
8 Kd4 loss in 2 half-moves