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

EGTB: win in 4 half-moves

# move score
1 Nb5 win in 3 half-moves
2 Kb7 loss in 8 half-moves
3 Kb5 loss in 6 half-moves
4 Ka5 loss in 4 half-moves
5 Kb6 loss in 4 half-moves
6 Nc6 loss in 2 half-moves
7 Nc8 loss in 2 half-moves