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

EGTB: loss in 5 half-moves

# move score
1 Kc7 loss in 4 half-moves
2 Kc8 loss in 4 half-moves
3 b4 loss in 2 half-moves
4 Kb4 loss in 2 half-moves
5 Kb6 loss in 2 half-moves
6 Kc4 loss in 2 half-moves
7 Kc6 loss in 2 half-moves
8 Kd4 loss in 2 half-moves
9 Kd5 loss in 2 half-moves
10 Kd6 loss in 2 half-moves
11 Kd7 loss in 2 half-moves
12 Ke7 loss in 1 half-moves
13 Ke8 loss in 1 half-moves