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

EGTB: win in 4 half-moves

# move score
1 Na3 win in 3 half-moves
2 Nd4 win in 3 half-moves
3 Na7 loss in 4 half-moves
4 Nc3 loss in 4 half-moves
5 Nc7 loss in 4 half-moves
6 Nd6 loss in 4 half-moves