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EGTB: win in 4 half-moves

# move score
1 Rg7 win in 3 half-moves
2 Ra7 draw
3 Rh2 draw
4 Rh3 draw
5 Ra1 loss in 4 half-moves
6 Raa2 loss in 4 half-moves
7 Rg1 loss in 4 half-moves
8 Rga2 loss in 4 half-moves
9 Ra4 loss in 2 half-moves
10 Ra5 loss in 2 half-moves
11 Ra6 loss in 2 half-moves
12 Ra8 loss in 2 half-moves
13 Rab3 loss in 2 half-moves
14 Rac3 loss in 2 half-moves
15 Rad3 loss in 2 half-moves
16 Rae3 loss in 2 half-moves
17 Raf3 loss in 2 half-moves
18 Rb2 loss in 2 half-moves
19 Rc2 loss in 2 half-moves
20 Rd2 loss in 2 half-moves
21 Re2 loss in 2 half-moves
22 Rf2 loss in 2 half-moves
23 Rg4 loss in 2 half-moves
24 Rg5 loss in 2 half-moves
25 Rg6 loss in 2 half-moves
26 Rg8 loss in 2 half-moves
27 Rgb3 loss in 2 half-moves
28 Rgc3 loss in 2 half-moves
29 Rgd3 loss in 2 half-moves
30 Rge3 loss in 2 half-moves
31 Rgf3 loss in 2 half-moves