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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Kb5 win in 3 half-moves
3 Nb5 loss in 24 half-moves
4 Kb6 loss in 12 half-moves
5 Nb1 loss in 4 half-moves
6 Ka4 loss in 2 half-moves
7 Ka6 loss in 2 half-moves
8 Nc4 loss in 2 half-moves
9 Nc2 loss in 1 half-moves