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

EGTB: draw

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