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

EGTB: win in 4 half-moves

# move score
1 Nc8 win in 3 half-moves
2 Kb6 draw
3 Kb7 draw
4 Kc7 draw
5 Kb5 loss in 2 half-moves
6 Kc5 loss in 2 half-moves
7 Kd5 loss in 2 half-moves
8 Kd6 loss in 2 half-moves
9 Kd7 loss in 2 half-moves
10 Nb5 loss in 2 half-moves