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EGTB: win in 12 half-moves

# move score
1 Rg7 win in 11 half-moves
2 Rh7 win in 13 half-moves
3 Ra7 draw
4 Rb1 draw
5 Rb2 draw
6 Rb3 draw
7 Rb5 draw
8 Rf7 draw
9 Ke1 loss in 2 half-moves
10 Ke2 loss in 2 half-moves
11 Kff2 loss in 2 half-moves
12 Kfg2 loss in 2 half-moves
13 Kgf2 loss in 2 half-moves
14 Kgg2 loss in 2 half-moves
15 Kh1 loss in 2 half-moves
16 Kh2 loss in 2 half-moves
17 Rb4 loss in 2 half-moves
18 Rb6 loss in 2 half-moves
19 Rb8 loss in 2 half-moves
20 Rc7 loss in 2 half-moves
21 Rd7 loss in 2 half-moves
22 Re7 loss in 2 half-moves