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 Na6 draw
3 Na8 draw
4 Ne8 draw
5 Nb5 loss in 2 half-moves
6 Nd5 loss in 2 half-moves
7 Ne6 loss in 2 half-moves