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EGTB: win in 4 half-moves

# move score
1 Ra7 win in 3 half-moves
2 Ra1 draw
3 Rab2 draw
4 Rac2 draw
5 Rg1 draw
6 Rg7 draw
7 Rgb2 draw
8 Rgc2 draw
9 Rh2 draw
10 Ra3 loss in 2 half-moves
11 Ra4 loss in 2 half-moves
12 Ra5 loss in 2 half-moves
13 Ra6 loss in 2 half-moves
14 Ra8 loss in 2 half-moves
15 Rad2 loss in 2 half-moves
16 Rae2 loss in 2 half-moves
17 Raf2 loss in 2 half-moves
18 Rg3 loss in 2 half-moves
19 Rg4 loss in 2 half-moves
20 Rg5 loss in 2 half-moves
21 Rg6 loss in 2 half-moves
22 Rg8 loss in 2 half-moves
23 Rgd2 loss in 2 half-moves
24 Rge2 loss in 2 half-moves
25 Rgf2 loss in 2 half-moves