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 Kbb8 loss in 4 half-moves
3 Kaa6 loss in 3 half-moves
4 Kab8 loss in 3 half-moves
5 Kba6 loss in 3 half-moves
6 Kc6 loss in 2 half-moves
7 Kc7 loss in 2 half-moves
8 Kc8 loss in 2 half-moves
9 Nc7 loss in 2 half-moves