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 Kc5 loss in 12 half-moves
3 Kd5 loss in 8 half-moves
4 Kc6 loss in 4 half-moves
5 Kc7 loss in 4 half-moves
6 Kd7 loss in 4 half-moves
7 Ke6 loss in 4 half-moves
8 Ke7 loss in 4 half-moves
9 Ke5 loss in 2 half-moves
10 Nb1 loss in 2 half-moves
11 Nc2 loss in 2 half-moves
12 Nc4 loss in 2 half-moves