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

EGTB: draw

# move score
1 Ka5 draw
2 Kb4 draw
3 Kb5 draw
4 Ra5 draw
5 Ra8 draw
6 Rb6 draw
7 Rc6 draw
8 Rd6 draw
9 Re6 draw
10 Rf6 draw
11 Rg6 draw
12 Rh6 draw
13 Ka3 loss in 2 half-moves
14 Kb3 loss in 2 half-moves
15 Ra7 loss in 2 half-moves