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

EGTB: win in 4 half-moves

# move score
1 b7 win in 3 half-moves
2 Na3 loss in 6 half-moves
3 Na5 loss in 4 half-moves
4 Nb2 loss in 4 half-moves
5 Ne3 loss in 2 half-moves
6 Ne5 loss in 2 half-moves
7 Nd2 loss in 1 half-moves
8 Nd6 loss in 1 half-moves