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 Ka8 loss in 4 half-moves
3 Kb1 loss in 4 half-moves
4 Kb2 loss in 4 half-moves
5 Kb3 loss in 4 half-moves
6 Kc1 loss in 4 half-moves
7 Kc3 loss in 4 half-moves
8 Kc8 loss in 3 half-moves
9 Ka7 loss in 2 half-moves
10 Kb7 loss in 2 half-moves
11 Kc7 loss in 2 half-moves
12 Kd1 loss in 2 half-moves
13 Kd2 loss in 2 half-moves
14 Kd3 loss in 2 half-moves