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

EGTB: loss in 15 half-moves

# move score
1 Kb7 loss in 14 half-moves
2 Kb8 loss in 14 half-moves
3 Kc7 loss in 14 half-moves
4 Kd7 loss in 14 half-moves
5 Kd8 loss in 12 half-moves
6 Nb5 loss in 2 half-moves
7 Nc6 loss in 2 half-moves