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EGTB: win in 12 half-moves

# move score
1 Rg8 win in 11 half-moves
2 Ra8 draw
3 Rb1 draw
4 Rb2 draw
5 Rb3 draw
6 Rb7 draw
7 Re8 draw
8 Rf8 draw
9 Rh8 draw
10 Kf1 loss in 2 half-moves
11 Kf2 loss in 2 half-moves
12 Kg3 loss in 2 half-moves
13 Kgg2 loss in 2 half-moves
14 Kgh1 loss in 2 half-moves
15 Kh3 loss in 2 half-moves
16 Khg2 loss in 2 half-moves
17 Khh1 loss in 2 half-moves
18 Rb4 loss in 2 half-moves
19 Rb5 loss in 2 half-moves
20 Rb6 loss in 2 half-moves
21 Rc8 loss in 2 half-moves
22 Rd8 loss in 2 half-moves