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

EGTB: draw

# move score
1 Rb8 draw
2 Rc1 draw
3 Rc2 draw
4 Rc3 draw
5 Rc4 draw
6 Rc5 draw
7 Rc6 draw
8 Ra8 loss in 6 half-moves
9 Kc7 loss in 2 half-moves
10 Kd7 loss in 2 half-moves
11 Ke7 loss in 2 half-moves
12 Ke8 loss in 2 half-moves
13 Rc7 loss in 2 half-moves