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EGTB: win in 4 half-moves

# move score
1 Rg6 win in 3 half-moves
2 Ra1 draw
3 Rc1 draw
4 Rd1 draw
5 Re1 draw
6 Rg4 draw
7 Rg5 draw
8 Rg7 draw
9 Rg8 draw
10 Ke4 loss in 2 half-moves
11 Ke5 loss in 2 half-moves
12 Ke6 loss in 2 half-moves
13 Kf4 loss in 2 half-moves
14 Kf6 loss in 2 half-moves
15 Kfg4 loss in 2 half-moves
16 Kfg5 loss in 2 half-moves
17 Kfg6 loss in 2 half-moves
18 Kh4 loss in 2 half-moves
19 Kh6 loss in 2 half-moves
20 Khg4 loss in 2 half-moves
21 Khg5 loss in 2 half-moves
22 Khg6 loss in 2 half-moves
23 Rb1 loss in 2 half-moves
24 Rf1 loss in 2 half-moves
25 Rg2 loss in 2 half-moves
26 Rg3 loss in 2 half-moves
27 Rh1 loss in 2 half-moves