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EGTB: win in 12 half-moves

# move score
1 Rb7 win in 11 half-moves
2 K5b6 draw
3 K7b6 draw
4 Rb5 draw
5 Rb6 draw
6 Rc2 draw
7 Rd2 draw
8 Re2 draw
9 Kb4 loss in 2 half-moves
10 Kb5 loss in 2 half-moves
11 Kb7 loss in 2 half-moves
12 Kb8 loss in 2 half-moves
13 Kc4 loss in 2 half-moves
14 Kc8 loss in 2 half-moves
15 Kd4 loss in 2 half-moves
16 Kd5 loss in 2 half-moves
17 Kd7 loss in 2 half-moves
18 Kd8 loss in 2 half-moves
19 Ra2 loss in 2 half-moves
20 Rb1 loss in 2 half-moves
21 Rb3 loss in 2 half-moves
22 Rb4 loss in 2 half-moves
23 Rb8 loss in 2 half-moves
24 Rf2 loss in 2 half-moves
25 Rg2 loss in 2 half-moves
26 Rh2 loss in 2 half-moves
27 K5c6 loss in 1 half-moves
28 K5d6 loss in 1 half-moves
29 K7c6 loss in 1 half-moves
30 K7d6 loss in 1 half-moves