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

EGTB: win in 2 half-moves

# move score
1 Ka7 win in 1 half-moves
2 Kc7 win in 1 half-moves
3 Kd7 win in 1 half-moves
4 b5 loss in 2 half-moves
5 Kab8 loss in 2 half-moves
6 Kcb8 loss in 2 half-moves
7 Kd8 loss in 2 half-moves
8 Kab7 loss in 1 half-moves
9 Kcb7 loss in 1 half-moves