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 Kg8 loss in 4 half-moves
3 Ke7 loss in 2 half-moves
4 Ke8 loss in 2 half-moves
5 Kf7 loss in 2 half-moves
6 Kg7 loss in 2 half-moves