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EGTB: win in 12 half-moves

# move score
1 Rg8 win in 11 half-moves
2 Ra4 draw
3 Rg3 draw
4 Rg6 draw
5 Kb7 loss in 2 half-moves
6 Kb8 loss in 2 half-moves
7 Kc7 loss in 2 half-moves
8 Kcd7 loss in 2 half-moves
9 Kd5 loss in 2 half-moves
10 Kd6 loss in 2 half-moves
11 Kd8 loss in 2 half-moves
12 Ke5 loss in 2 half-moves
13 Ke7 loss in 2 half-moves
14 Ked7 loss in 2 half-moves
15 Kf5 loss in 2 half-moves
16 Kf6 loss in 2 half-moves
17 Kf7 loss in 2 half-moves
18 Rb4 loss in 2 half-moves
19 Rc4 loss in 2 half-moves
20 Rd4 loss in 2 half-moves
21 Re4 loss in 2 half-moves
22 Rf4 loss in 2 half-moves
23 Rg1 loss in 2 half-moves
24 Rg2 loss in 2 half-moves
25 Rg5 loss in 2 half-moves
26 Rg7 loss in 2 half-moves
27 Rh4 loss in 2 half-moves