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EGTB: win in 12 half-moves

# move score
1 Rg7 win in 11 half-moves
2 Rb2 draw
3 Re7 draw
4 K6f7 loss in 2 half-moves
5 K6g7 loss in 2 half-moves
6 K6h7 loss in 2 half-moves
7 K8f7 loss in 2 half-moves
8 K8g7 loss in 2 half-moves
9 K8h7 loss in 2 half-moves
10 Kf5 loss in 2 half-moves
11 Kf6 loss in 2 half-moves
12 Kf8 loss in 2 half-moves
13 Kg5 loss in 2 half-moves
14 Kh5 loss in 2 half-moves
15 Kh6 loss in 2 half-moves
16 Kh8 loss in 2 half-moves
17 Ra7 loss in 2 half-moves
18 Rb1 loss in 2 half-moves
19 Rb3 loss in 2 half-moves
20 Rb4 loss in 2 half-moves
21 Rb5 loss in 2 half-moves
22 Rb6 loss in 2 half-moves
23 Rb8 loss in 2 half-moves
24 Rc7 loss in 2 half-moves
25 Rd7 loss in 2 half-moves
26 Rf7 loss in 2 half-moves
27 Rh7 loss in 2 half-moves