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EGTB: win in 4 half-moves

# move score
1 Rg8 win in 3 half-moves
2 Ra1 draw
3 Ra4 draw
4 Ra5 draw
5 Ra6 draw
6 Re8 draw
7 Rf8 draw
8 Rh8 draw
9 Kd4 loss in 2 half-moves
10 Kd5 loss in 2 half-moves
11 Kd6 loss in 2 half-moves
12 Ke2 loss in 2 half-moves
13 Ke3 loss in 2 half-moves
14 Ke6 loss in 2 half-moves
15 Kee4 loss in 2 half-moves
16 Kef4 loss in 2 half-moves
17 Kf2 loss in 2 half-moves
18 Kf5 loss in 2 half-moves
19 Kf6 loss in 2 half-moves
20 Kfe4 loss in 2 half-moves
21 Kff4 loss in 2 half-moves
22 Kg2 loss in 2 half-moves
23 Kg3 loss in 2 half-moves
24 Kg4 loss in 2 half-moves
25 Ra2 loss in 2 half-moves
26 Ra3 loss in 2 half-moves
27 Ra7 loss in 2 half-moves
28 Rb8 loss in 2 half-moves
29 Rc8 loss in 2 half-moves
30 Rd8 loss in 2 half-moves