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EGTB: win in 12 half-moves

# move score
1 Rg8 win in 11 half-moves
2 Kd7 draw
3 Kg4 draw
4 Kh4 draw
5 Rc6 draw
6 Rg4 draw
7 Kd8 loss in 2 half-moves
8 Ke7 loss in 2 half-moves
9 Kf7 loss in 2 half-moves
10 Kf8 loss in 2 half-moves
11 Kg5 loss in 2 half-moves
12 Kh6 loss in 2 half-moves
13 Ra6 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rd6 loss in 2 half-moves
16 Re6 loss in 2 half-moves
17 Rf6 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 Rg7 loss in 2 half-moves
23 Rh6 loss in 2 half-moves