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

EGTB: win in 2 half-moves

# move score
1 b5 win in 1 half-moves
2 Ke7 win in 1 half-moves
3 Kg8 loss in 8 half-moves
4 Ke8 loss in 4 half-moves
5 Kf7 loss in 4 half-moves
6 Kg7 loss in 4 half-moves