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

EGTB: loss in 7 half-moves

# move score
1 b7 loss in 6 half-moves
2 Nd3 loss in 4 half-moves
3 Nd1 loss in 2 half-moves
4 Ne4 loss in 2 half-moves
5 Ng4 loss in 2 half-moves
6 Nh1 loss in 2 half-moves
7 Nh3 loss in 2 half-moves