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