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EGTB: win in 12 half-moves

# move score
1 Ra8 win in 11 half-moves
2 Kb6 draw
3 Kb7 draw
4 Kb8 draw
5 Kc6 draw
6 Kc8 draw
7 R1a2 draw
8 R1a3 draw
9 R4a2 draw
10 R4a3 draw
11 Ra7 draw
12 Rb1 draw
13 Rb4 draw
14 Rc1 draw
15 Rc4 draw
16 Rd1 draw
17 Rd4 draw
18 Kd6 loss in 2 half-moves
19 Kd7 loss in 2 half-moves
20 Kd8 loss in 2 half-moves
21 Ra5 loss in 2 half-moves
22 Ra6 loss in 2 half-moves
23 Re1 loss in 2 half-moves
24 Re4 loss in 2 half-moves
25 Rf1 loss in 2 half-moves
26 Rf4 loss in 2 half-moves
27 Rg1 loss in 2 half-moves
28 Rg4 loss in 2 half-moves
29 Rh1 loss in 2 half-moves
30 Rh4 loss in 2 half-moves