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

EGTB: draw

# move score
1 Rc1 draw
2 Rc2 draw
3 Rc3 draw
4 Rc8 draw
5 Rd6 draw
6 Re6 draw
7 Rf6 draw
8 Rg6 draw
9 Rh6 draw
10 Ka5 loss in 2 half-moves
11 Ka7 loss in 2 half-moves
12 Kb5 loss in 2 half-moves
13 Kb6 loss in 2 half-moves
14 Kb7 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rc4 loss in 2 half-moves
17 Rc5 loss in 2 half-moves
18 Rc7 loss in 2 half-moves