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

EGTB: loss in 5 half-moves

# move score
1 b4 loss in 4 half-moves
2 Kb7 loss in 4 half-moves
3 Kb8 loss in 4 half-moves
4 Kc4 loss in 4 half-moves
5 Kc5 loss in 4 half-moves
6 Kc7 loss in 4 half-moves
7 Kd3 loss in 4 half-moves
8 Kd5 loss in 4 half-moves
9 Kd7 loss in 4 half-moves
10 Kd8 loss in 4 half-moves
11 Ke3 loss in 4 half-moves
12 Ke4 loss in 4 half-moves
13 Ke5 loss in 4 half-moves
14 Kc3 loss in 3 half-moves