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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Rc1 draw
3 Rc2 draw
4 Rc3 draw
5 Rc7 draw
6 Rd8 draw
7 K7d8 loss in 2 half-moves
8 K7f8 loss in 2 half-moves
9 Kd6 loss in 2 half-moves
10 Ke6 loss in 2 half-moves
11 Kf6 loss in 2 half-moves
12 K7d7 loss in 1 half-moves
13 K7f7 loss in 1 half-moves
14 K8d7 loss in 1 half-moves
15 K8d8 loss in 1 half-moves
16 K8f7 loss in 1 half-moves
17 K8f8 loss in 1 half-moves
18 Ra8 loss in 1 half-moves
19 Rc4 loss in 1 half-moves
20 Rc5 loss in 1 half-moves
21 Rc6 loss in 1 half-moves