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

EGTB: win in 2 half-moves

# move score
1 Kb7 win in 1 half-moves
2 Kd7 win in 1 half-moves
3 Kb6 loss in 26 half-moves
4 Kd6 loss in 26 half-moves
5 Kc6 loss in 22 half-moves
6 Kd8 loss in 22 half-moves
7 Kc8 loss in 18 half-moves
8 Kb8 loss in 16 half-moves