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EGTB: win in 12 half-moves

# move score
1 Rg4 win in 11 half-moves
2 Rc1 draw
3 Rc2 draw
4 Rc3 draw
5 Rc7 draw
6 Rd4 draw
7 Re4 draw
8 Rf4 draw
9 Rh4 draw
10 Ke5 loss in 2 half-moves
11 Ke6 loss in 2 half-moves
12 Ke8 loss in 2 half-moves
13 Kf5 loss in 2 half-moves
14 Kg5 loss in 2 half-moves
15 Kg6 loss in 2 half-moves
16 Kg8 loss in 2 half-moves
17 Ra4 loss in 2 half-moves
18 Rb4 loss in 2 half-moves
19 Rc5 loss in 2 half-moves
20 Rc6 loss in 2 half-moves
21 Rc8 loss in 2 half-moves
22 K6e7 loss in 1 half-moves
23 K6f7 loss in 1 half-moves
24 K6g7 loss in 1 half-moves
25 K8e7 loss in 1 half-moves
26 K8f7 loss in 1 half-moves
27 K8g7 loss in 1 half-moves