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

EGTB: draw

# move score
1 Ra5 draw
2 Rb8 draw
3 Rc8 draw
4 Rd8 draw
5 Rh8 draw
6 Ra4 loss in 6 half-moves
7 Ka1 loss in 2 half-moves
8 Ka3 loss in 2 half-moves
9 Kb1 loss in 2 half-moves
10 Kb2 loss in 2 half-moves
11 Kb3 loss in 2 half-moves
12 Ra3 loss in 2 half-moves
13 Ra6 loss in 2 half-moves
14 Ra7 loss in 2 half-moves
15 Re8 loss in 2 half-moves
16 Rf8 loss in 2 half-moves
17 Rg8 loss in 2 half-moves