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

EGTB: draw

# move score
1 Kb7 draw
2 Rb8 draw
3 Re8 draw
4 Ka7 loss in 6 half-moves
5 Ra7 loss in 6 half-moves
6 Ka5 loss in 4 half-moves
7 Rf8 loss in 4 half-moves
8 Kb5 loss in 2 half-moves
9 Kb6 loss in 2 half-moves
10 Rc8 loss in 2 half-moves
11 Rd8 loss in 2 half-moves
12 Rg8 loss in 2 half-moves
13 Rh8 loss in 2 half-moves