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EGTB: win in 4 half-moves

# move score
1 Rg7 win in 3 half-moves
2 Rc6 draw
3 Rd6 draw
4 Re6 draw
5 Rg1 draw
6 Rg3 draw
7 Rgg2 draw
8 Ra1 loss in 2 half-moves
9 Ra3 loss in 2 half-moves
10 Ra4 loss in 2 half-moves
11 Ra5 loss in 2 half-moves
12 Ra7 loss in 2 half-moves
13 Ra8 loss in 2 half-moves
14 Raa6 loss in 2 half-moves
15 Rag2 loss in 2 half-moves
16 Rb2 loss in 2 half-moves
17 Rb6 loss in 2 half-moves
18 Rc2 loss in 2 half-moves
19 Rd2 loss in 2 half-moves
20 Re2 loss in 2 half-moves
21 Rf2 loss in 2 half-moves
22 Rf6 loss in 2 half-moves
23 Rg4 loss in 2 half-moves
24 Rg5 loss in 2 half-moves
25 Rg8 loss in 2 half-moves
26 Rga6 loss in 2 half-moves
27 Rh2 loss in 2 half-moves
28 Rh6 loss in 2 half-moves