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EGTB: win in 4 half-moves

# move score
1 Rg8 win in 3 half-moves
2 Kh1 draw
3 Kh2 draw
4 Rc1 draw
5 Rc2 draw
6 Rc3 draw
7 Rc4 draw
8 Rd8 draw
9 Re8 draw
10 Rf8 draw
11 Rh8 draw
12 Ke5 loss in 2 half-moves
13 Ke6 loss in 2 half-moves
14 Ke7 loss in 2 half-moves
15 Kf1 loss in 2 half-moves
16 Kf2 loss in 2 half-moves
17 Kf5 loss in 2 half-moves
18 Kf7 loss in 2 half-moves
19 Kg2 loss in 2 half-moves
20 Kg5 loss in 2 half-moves
21 Kg6 loss in 2 half-moves
22 Kg7 loss in 2 half-moves
23 Ra8 loss in 2 half-moves
24 Rb8 loss in 2 half-moves
25 Rc5 loss in 2 half-moves
26 Rc6 loss in 2 half-moves
27 Rc7 loss in 2 half-moves