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 Kc6 loss in 4 half-moves
3 Kc7 loss in 4 half-moves
4 Kc8 loss in 4 half-moves
5 Kd4 loss in 4 half-moves
6 Kd5 loss in 4 half-moves
7 Kd8 loss in 4 half-moves
8 Kdd6 loss in 4 half-moves
9 Kde6 loss in 4 half-moves
10 Ke4 loss in 4 half-moves
11 Ke7 loss in 4 half-moves
12 Ke8 loss in 4 half-moves
13 Ked6 loss in 4 half-moves
14 Kee6 loss in 4 half-moves
15 Kf4 loss in 4 half-moves
16 Kf5 loss in 4 half-moves
17 Kf6 loss in 4 half-moves