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EGTB: win in 12 half-moves

# move score
1 Rg7 win in 11 half-moves
2 Kf8 draw
3 Kg6 draw
4 Kg7 draw
5 Kh4 draw
6 Kh5 draw
7 Kh6 draw
8 Kh7 draw
9 Kh8 draw
10 Ra7 draw
11 Rb3 draw
12 Rb8 draw
13 Rh7 draw
14 Kf4 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 Kg4 loss in 2 half-moves
19 Rb1 loss in 2 half-moves
20 Rb2 loss in 2 half-moves
21 Rb4 loss in 2 half-moves
22 Rb5 loss in 2 half-moves
23 Rb6 loss in 2 half-moves
24 Rc7 loss in 2 half-moves
25 Rd7 loss in 2 half-moves
26 Re7 loss in 2 half-moves
27 Rf7 loss in 2 half-moves