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 Ra1 draw
3 Ra7 draw
4 Rh8 draw
5 Rd8 loss in 6 half-moves
6 Rg8 loss in 6 half-moves
7 Ra2 loss in 2 half-moves
8 Ra3 loss in 2 half-moves
9 Ra4 loss in 2 half-moves
10 Ra5 loss in 2 half-moves
11 Ra6 loss in 2 half-moves
12 Rb8 loss in 2 half-moves
13 Rc8 loss in 2 half-moves
14 Re8 loss in 2 half-moves
15 Rf8 loss in 2 half-moves