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

EGTB: draw

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