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EGTB: win in 4 half-moves

# move score
1 Rg6 win in 3 half-moves
2 Rg8 win in 13 half-moves
3 Ra3 draw
4 Rd3 draw
5 Re3 draw
6 Rf3 draw
7 Rg4 draw
8 Rg5 draw
9 Rg7 draw
10 Kb4 loss in 2 half-moves
11 Kb5 loss in 2 half-moves
12 Kb6 loss in 2 half-moves
13 Kc4 loss in 2 half-moves
14 Kc6 loss in 2 half-moves
15 Kd4 loss in 2 half-moves
16 Kd5 loss in 2 half-moves
17 Kd6 loss in 2 half-moves
18 Ke6 loss in 2 half-moves
19 Ke7 loss in 2 half-moves
20 Ke8 loss in 2 half-moves
21 Kf6 loss in 2 half-moves
22 Kf8 loss in 2 half-moves
23 Kg6 loss in 2 half-moves
24 Kg7 loss in 2 half-moves
25 Kg8 loss in 2 half-moves
26 Rb3 loss in 2 half-moves
27 Rc3 loss in 2 half-moves
28 Rg1 loss in 2 half-moves
29 Rg2 loss in 2 half-moves
30 Rh3 loss in 2 half-moves