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

EGTB: draw

# move score
1 Rc2 draw
2 Rc3 draw
3 Rc4 draw
4 Ra8 loss in 4 half-moves
5 Rb8 loss in 4 half-moves
6 Kd7 loss in 2 half-moves
7 Kd8 loss in 2 half-moves
8 Ke7 loss in 2 half-moves
9 Kf7 loss in 2 half-moves
10 Kf8 loss in 2 half-moves
11 Rc1 loss in 2 half-moves
12 Rc5 loss in 2 half-moves
13 Rc6 loss in 2 half-moves
14 Rc7 loss in 2 half-moves
15 Rd8 loss in 2 half-moves