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EGTB: win in 12 half-moves

# move score
1 Rb8 win in 11 half-moves
2 Kc6 draw
3 Kc7 draw
4 Kc8 draw
5 Ra8 draw
6 Rc8 draw
7 Rd8 draw
8 Re8 draw
9 Rf8 draw
10 Rg1 draw
11 Rg2 draw
12 Rg3 draw
13 Ka2 loss in 2 half-moves
14 Kb1 loss in 2 half-moves
15 Kb2 loss in 2 half-moves
16 Kd6 loss in 2 half-moves
17 Kd8 loss in 2 half-moves
18 Ke6 loss in 2 half-moves
19 Ke7 loss in 2 half-moves
20 Ke8 loss in 2 half-moves
21 Rg4 loss in 2 half-moves
22 Rg5 loss in 2 half-moves
23 Rg6 loss in 2 half-moves
24 Rg7 loss in 2 half-moves
25 Rh8 loss in 2 half-moves