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EGTB: win in 12 half-moves

# move score
1 Rg8 win in 11 half-moves
2 Rc1 draw
3 Rd1 draw
4 Re1 draw
5 Rf1 draw
6 Rg4 draw
7 Rg5 draw
8 Rg6 draw
9 Rg7 draw
10 Ka6 loss in 2 half-moves
11 Ka7 loss in 2 half-moves
12 Ka8 loss in 2 half-moves
13 Kb6 loss in 2 half-moves
14 Kb8 loss in 2 half-moves
15 Kd6 loss in 2 half-moves
16 Kd8 loss in 2 half-moves
17 Ke6 loss in 2 half-moves
18 Ke7 loss in 2 half-moves
19 Ke8 loss in 2 half-moves
20 Ra1 loss in 2 half-moves
21 Rb1 loss in 2 half-moves
22 Rg2 loss in 2 half-moves
23 Rg3 loss in 2 half-moves
24 Rh1 loss in 2 half-moves
25 Kbc6 loss in 1 half-moves
26 Kbc7 loss in 1 half-moves
27 Kbc8 loss in 1 half-moves
28 Kdc6 loss in 1 half-moves
29 Kdc7 loss in 1 half-moves
30 Kdc8 loss in 1 half-moves