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

EGTB: win in 2 half-moves

# move score
1 Na1 win in 1 half-moves
2 Na3 win in 1 half-moves
3 Nd4 loss in 4 half-moves
4 Nb4 loss in 2 half-moves
5 Ne1 loss in 2 half-moves
6 Ne3 loss in 2 half-moves