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

EGTB: win in 4 half-moves

# move score
1 a7 win in 3 half-moves
2 Na4 win in 4 half-moves
3 Nc4 win in 4 half-moves
4 Ne1 win in 7 half-moves
5 Nd1 loss in 4 half-moves
6 Nd3 loss in 4 half-moves
7 Ne3 loss in 2 half-moves
8 Nf4 loss in 2 half-moves
9 Nh4 loss in 2 half-moves