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EGTB: win in 4 half-moves

# move score
1 Rg3 win in 3 half-moves
2 Ra7 draw
3 Rb7 draw
4 Rc7 draw
5 Rg1 draw
6 Rg2 draw
7 Rg4 draw
8 Rg8 draw
9 Ke3 loss in 2 half-moves
10 Ke4 loss in 2 half-moves
11 Ke5 loss in 2 half-moves
12 Kf3 loss in 2 half-moves
13 Kf5 loss in 2 half-moves
14 Kfg3 loss in 2 half-moves
15 Kfg4 loss in 2 half-moves
16 Kfg5 loss in 2 half-moves
17 Kh3 loss in 2 half-moves
18 Kh5 loss in 2 half-moves
19 Khg3 loss in 2 half-moves
20 Khg4 loss in 2 half-moves
21 Khg5 loss in 2 half-moves
22 Rd7 loss in 2 half-moves
23 Re7 loss in 2 half-moves
24 Rf7 loss in 2 half-moves
25 Rg5 loss in 2 half-moves
26 Rg6 loss in 2 half-moves
27 Rh7 loss in 2 half-moves