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 Kb6 loss in 2 half-moves
3 Kb8 loss in 2 half-moves
4 Kc5 loss in 2 half-moves
5 Kd5 loss in 2 half-moves
6 Kd6 loss in 2 half-moves
7 Kd8 loss in 2 half-moves
8 K6b7 loss in 1 half-moves
9 K6c7 loss in 1 half-moves
10 K6d7 loss in 1 half-moves
11 K8b7 loss in 1 half-moves
12 K8c7 loss in 1 half-moves
13 K8d7 loss in 1 half-moves