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 Ne1 loss in 2 half-moves
3 Ne3 loss in 2 half-moves
4 Nf2 loss in 2 half-moves
5 Ng1 loss in 2 half-moves
6 Ng5 loss in 2 half-moves
7 Ngf4 loss in 2 half-moves
8 Nh4 loss in 2 half-moves
9 Nhf4 loss in 2 half-moves
10 Rh1 loss in 2 half-moves