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

EGTB: win in 4 half-moves

# move score
1 d7 win in 3 half-moves
2 Ra5 draw
3 Ra7 draw
4 Ra8 draw
5 Ra1 loss in 2 half-moves
6 Ra2 loss in 2 half-moves
7 Ra3 loss in 2 half-moves
8 Ra4 loss in 2 half-moves
9 Rb6 loss in 2 half-moves
10 Rc6 loss in 2 half-moves