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EGTB: win in 12 half-moves

# move score
1 Rb7 win in 11 half-moves
2 Kc4 draw
3 Kd6 draw
4 Kd7 draw
5 Kd8 draw
6 Ke8 draw
7 Kf7 draw
8 Kf8 draw
9 Ra4 draw
10 Rb1 draw
11 Rc4 draw
12 Kc3 loss in 2 half-moves
13 Kc5 loss in 2 half-moves
14 Kd3 loss in 2 half-moves
15 Kd5 loss in 2 half-moves
16 Ke3 loss in 2 half-moves
17 Ke4 loss in 2 half-moves
18 Ke5 loss in 2 half-moves
19 Ke6 loss in 2 half-moves
20 Kf6 loss in 2 half-moves
21 Rb2 loss in 2 half-moves
22 Rb3 loss in 2 half-moves
23 Rb5 loss in 2 half-moves
24 Rb6 loss in 2 half-moves
25 Rb8 loss in 2 half-moves