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

EGTB: draw

# move score
1 Ka6 draw
2 Ka8 draw
3 Kb6 draw
4 Kb7 draw
5 Kb8 draw
6 Rb8 draw
7 Rd3 draw
8 Rd4 draw
9 Rd5 draw
10 Rd6 draw
11 Rd7 draw
12 Re8 loss in 6 half-moves
13 Ra8 loss in 4 half-moves
14 Rc8 loss in 2 half-moves
15 Rd1 loss in 2 half-moves
16 Rd2 loss in 2 half-moves
17 Rf8 loss in 2 half-moves
18 Rg8 loss in 2 half-moves
19 Rh8 loss in 2 half-moves