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EGTB: win in 4 half-moves

# move score
1 Rg3 win in 3 half-moves
2 Ra8 draw
3 Rb8 draw
4 Rc8 draw
5 Rd8 draw
6 Rg1 draw
7 Rg2 draw
8 Rg4 draw
9 Rg5 draw
10 Ke3 loss in 2 half-moves
11 Ke4 loss in 2 half-moves
12 Ke5 loss in 2 half-moves
13 Kf3 loss in 2 half-moves
14 Kf5 loss in 2 half-moves
15 Kfg3 loss in 2 half-moves
16 Kfg4 loss in 2 half-moves
17 Kfg5 loss in 2 half-moves
18 Kh3 loss in 2 half-moves
19 Kh5 loss in 2 half-moves
20 Khg3 loss in 2 half-moves
21 Khg4 loss in 2 half-moves
22 Khg5 loss in 2 half-moves
23 Re8 loss in 2 half-moves
24 Rf8 loss in 2 half-moves
25 Rg6 loss in 2 half-moves
26 Rg7 loss in 2 half-moves
27 Rh8 loss in 2 half-moves