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EGTB: win in 20 half-moves

# move score
1 Rg8 win in 19 half-moves
2 Kb8 draw
3 Kc4 draw
4 Kc7 draw
5 Kd7 draw
6 Kd8 draw
7 Ke4 draw
8 Re4 draw
9 Rf4 draw
10 Rg6 draw
11 Rh4 draw
12 Kb7 loss in 2 half-moves
13 Kc3 loss in 2 half-moves
14 Kc5 loss in 2 half-moves
15 Kd3 loss in 2 half-moves
16 Kd5 loss in 2 half-moves
17 Ke3 loss in 2 half-moves
18 Ke5 loss in 2 half-moves
19 Rg1 loss in 2 half-moves
20 Rg2 loss in 2 half-moves
21 Rg3 loss in 2 half-moves
22 Rg5 loss in 2 half-moves
23 Rg7 loss in 2 half-moves