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 K7a7 loss in 4 half-moves
3 Ka6 loss in 4 half-moves
4 K8a7 loss in 3 half-moves
5 K7c7 loss in 2 half-moves
6 K7c8 loss in 2 half-moves
7 K8c7 loss in 2 half-moves
8 K8c8 loss in 2 half-moves
9 Kc6 loss in 2 half-moves
10 Nc7 loss in 2 half-moves