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

EGTB: win in 2 half-moves

# move score
1 Kc7 win in 1 half-moves
2 Kc8 win in 1 half-moves
3 Ka6 loss in 2 half-moves
4 Kaa8 loss in 2 half-moves
5 Kb6 loss in 2 half-moves
6 b3 loss in 1 half-moves
7 Kab7 loss in 1 half-moves
8 Kba8 loss in 1 half-moves
9 Kbb7 loss in 1 half-moves