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EGTB: win in 4 half-moves

# move score
1 Rg8 win in 3 half-moves
2 Ka8 draw
3 Kb7 draw
4 Kb8 draw
5 Kc7 draw
6 Kc8 draw
7 Kd8 draw
8 Ke7 draw
9 Ke8 draw
10 Ra1 draw
11 Rb1 draw
12 Rf1 draw
13 Rg5 draw
14 Rg6 draw
15 Rg7 draw
16 Rh1 draw
17 Ka6 loss in 2 half-moves
18 Kb6 loss in 2 half-moves
19 Kc6 loss in 2 half-moves
20 Kd6 loss in 2 half-moves
21 Ke6 loss in 2 half-moves
22 Rc1 loss in 2 half-moves
23 Rd1 loss in 2 half-moves
24 Re1 loss in 2 half-moves
25 Rg2 loss in 2 half-moves
26 Rg3 loss in 2 half-moves
27 Rg4 loss in 2 half-moves