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

EGTB: draw

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