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

EGTB: draw

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