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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Kd8 loss in 34 half-moves
3 Kb8 loss in 10 half-moves
4 Kc7 loss in 2 half-moves
5 Kd7 loss in 2 half-moves