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EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Kc5 draw
3 Kd5 draw
4 Ke5 draw
5 Rb1 draw
6 Rb5 draw
7 Rb6 draw
8 Rb8 draw
9 Rf2 draw
10 Rg2 draw
11 Rh2 draw
12 Kc6 loss in 2 half-moves
13 Kc7 loss in 2 half-moves
14 Kd7 loss in 2 half-moves
15 Ke6 loss in 2 half-moves
16 Ke7 loss in 2 half-moves
17 Kg6 loss in 2 half-moves
18 Kg7 loss in 2 half-moves
19 Kg8 loss in 2 half-moves
20 Kh6 loss in 2 half-moves
21 Kh8 loss in 2 half-moves
22 Ra2 loss in 2 half-moves
23 Rb3 loss in 2 half-moves
24 Rb4 loss in 2 half-moves
25 Rc2 loss in 2 half-moves
26 Rd2 loss in 2 half-moves
27 Re2 loss in 2 half-moves