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

EGTB: loss in 5 half-moves

# move score
1 b5 loss in 4 half-moves
2 Kd7 loss in 4 half-moves
3 Kd8 loss in 4 half-moves
4 Nb5 loss in 4 half-moves
5 Nc6 loss in 4 half-moves
6 Ke7 loss in 3 half-moves
7 Nc8 loss in 3 half-moves
8 Kf7 loss in 2 half-moves
9 Kf8 loss in 2 half-moves