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EGTB: win in 12 half-moves

# move score
1 Rb8 win in 11 half-moves
2 Kd5 draw
3 Kd6 draw
4 Kd7 draw
5 Rc8 draw
6 Rd8 draw
7 Rf1 draw
8 Rf2 draw
9 Rf3 draw
10 Ka2 loss in 2 half-moves
11 Ka3 loss in 2 half-moves
12 Ka4 loss in 2 half-moves
13 Kb2 loss in 2 half-moves
14 Kb4 loss in 2 half-moves
15 Kb5 loss in 2 half-moves
16 Kb6 loss in 2 half-moves
17 Kb7 loss in 2 half-moves
18 Kc2 loss in 2 half-moves
19 Kc3 loss in 2 half-moves
20 Kc4 loss in 2 half-moves
21 Kc5 loss in 2 half-moves
22 Kc7 loss in 2 half-moves
23 Ra8 loss in 2 half-moves
24 Re8 loss in 2 half-moves
25 Rf4 loss in 2 half-moves
26 Rf5 loss in 2 half-moves
27 Rf6 loss in 2 half-moves
28 Rf7 loss in 2 half-moves
29 Rg8 loss in 2 half-moves
30 Rh8 loss in 2 half-moves