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

EGTB: draw

# move score
1 Kb4 draw
2 Ra6 draw
3 Kb5 loss in 12 half-moves
4 Kb6 loss in 10 half-moves
5 Rb8 loss in 6 half-moves
6 Ka4 loss in 4 half-moves
7 Ka6 loss in 4 half-moves
8 Ra7 loss in 4 half-moves
9 Rf8 loss in 4 half-moves
10 Rc8 loss in 2 half-moves
11 Rd8 loss in 2 half-moves
12 Re8 loss in 2 half-moves
13 Rg8 loss in 2 half-moves
14 Rh8 loss in 1 half-moves