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

EGTB: win in 2 half-moves

# move score
1 b7 win in 1 half-moves
2 Ra1 loss in 2 half-moves
3 Ra2 loss in 2 half-moves
4 Ra3 loss in 2 half-moves
5 Ra5 loss in 2 half-moves
6 Ra7 loss in 2 half-moves
7 Ra8 loss in 2 half-moves
8 Ra4 loss in 1 half-moves