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

EGTB: draw

# move score
1 Rc3 draw
2 Rc4 draw
3 Rc5 draw
4 Rc8 draw
5 Rd7 draw
6 Re7 draw
7 Rf7 draw
8 Rg7 draw
9 Rh7 draw
10 Kg3 loss in 2 half-moves
11 Kg4 loss in 2 half-moves
12 Kg5 loss in 2 half-moves
13 Kh3 loss in 2 half-moves
14 Kh5 loss in 2 half-moves
15 Ra7 loss in 2 half-moves
16 Rb7 loss in 2 half-moves
17 Rc1 loss in 2 half-moves
18 Rc2 loss in 2 half-moves
19 Rc6 loss in 2 half-moves