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

EGTB: win in 2 half-moves

# move score
1 Rb6 win in 1 half-moves
2 Rd7 win in 1 half-moves
3 Rd8 draw
4 Kc4 loss in 2 half-moves
5 Kc5 loss in 2 half-moves
6 Kc6 loss in 2 half-moves
7 Kd3 loss in 2 half-moves
8 Kdd4 loss in 2 half-moves
9 Kde5 loss in 2 half-moves
10 Ke3 loss in 2 half-moves
11 Ke6 loss in 2 half-moves
12 Ked4 loss in 2 half-moves
13 Kee5 loss in 2 half-moves
14 Kf3 loss in 2 half-moves
15 Kf4 loss in 2 half-moves
16 Kf5 loss in 2 half-moves
17 Ra6 loss in 2 half-moves
18 Rc6 loss in 2 half-moves
19 Re6 loss in 2 half-moves
20 Rf6 loss in 2 half-moves
21 Rg6 loss in 2 half-moves
22 Rh6 loss in 2 half-moves