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

EGTB: draw

# move score
1 Rb8 draw
2 Re1 draw
3 Re2 draw
4 Re5 draw
5 Rg8 draw
6 Rh8 draw
7 Ra8 loss in 4 half-moves
8 Rf8 loss in 4 half-moves
9 f7 loss in 2 half-moves
10 Rc8 loss in 2 half-moves
11 Rd8 loss in 2 half-moves
12 Re4 loss in 2 half-moves
13 Re6 loss in 2 half-moves
14 Re7 loss in 2 half-moves
15 Re3 loss in 1 half-moves