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EGTB: win in 12 half-moves

# move score
1 Rg7 win in 11 half-moves
2 Kb8 draw
3 Kc8 draw
4 Kd7 draw
5 Kd8 draw
6 Ke4 draw
7 Rh4 draw
8 Kb6 loss in 2 half-moves
9 Kb7 loss in 2 half-moves
10 Kc6 loss in 2 half-moves
11 Kd6 loss in 2 half-moves
12 Ke3 loss in 2 half-moves
13 Ke5 loss in 2 half-moves
14 Kf3 loss in 2 half-moves
15 Kf5 loss in 2 half-moves
16 Kg3 loss in 2 half-moves
17 Kg5 loss in 2 half-moves
18 Rg1 loss in 2 half-moves
19 Rg2 loss in 2 half-moves
20 Rg3 loss in 2 half-moves
21 Rg5 loss in 2 half-moves
22 Rg6 loss in 2 half-moves
23 Rg8 loss in 2 half-moves