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 Na4 draw
3 Nb7 draw
4 Ne4 draw
5 Na6 loss in 2 half-moves
6 Nb3 loss in 2 half-moves
7 Nd3 loss in 2 half-moves
8 Nd7 loss in 2 half-moves
9 Ne6 loss in 2 half-moves