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

EGTB: loss in 3 half-moves

# move score
1 b4 loss in 2 half-moves
2 K7c7 loss in 2 half-moves
3 K7c8 loss in 2 half-moves
4 K8c7 loss in 2 half-moves
5 K8c8 loss in 2 half-moves
6 Kb6 loss in 2 half-moves
7 Kc6 loss in 2 half-moves
8 K7a7 loss in 1 half-moves
9 K7a8 loss in 1 half-moves
10 K8a7 loss in 1 half-moves
11 K8a8 loss in 1 half-moves
12 Ka6 loss in 1 half-moves