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

EGTB: win in 2 half-moves

# move score
1 Ka3 win in 1 half-moves
2 Kb3 win in 1 half-moves
3 Kb4 win in 1 half-moves
4 Kb8 win in 1 half-moves
5 b5 loss in 4 half-moves
6 Ka5 loss in 1 half-moves
7 Kb5 loss in 1 half-moves
8 Kb7 loss in 1 half-moves
9 Kc7 loss in 1 half-moves
10 Kd7 loss in 1 half-moves
11 Kd8 loss in 1 half-moves