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EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 Ke4 draw
3 Ke5 draw
4 Kf4 draw
5 Kg4 draw
6 Kg5 draw
7 Kh6 draw
8 Kh8 draw
9 Ra1 draw
10 Rb2 draw
11 Rb3 draw
12 Rb4 draw
13 Rb6 draw
14 Rc1 draw
15 Rf1 draw
16 Rh1 draw
17 Ke6 loss in 2 half-moves
18 Kf6 loss in 2 half-moves
19 Kfg6 loss in 2 half-moves
20 Kg7 loss in 2 half-moves
21 Kg8 loss in 2 half-moves
22 Khg6 loss in 2 half-moves
23 Rb7 loss in 2 half-moves
24 Rb8 loss in 2 half-moves
25 Rd1 loss in 2 half-moves
26 Re1 loss in 2 half-moves
27 Rg1 loss in 2 half-moves