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EGTB: win in 4 half-moves

# move score
1 Rg6 win in 3 half-moves
2 Rg7 win in 3 half-moves
3 Rg8 win in 3 half-moves
4 Kg5 draw
5 Kh5 draw
6 Rc2 draw
7 Rd2 draw
8 Re2 draw
9 Rf2 draw
10 Rg3 draw
11 Rg4 draw
12 Rg5 draw
13 Kc6 loss in 2 half-moves
14 Kc7 loss in 2 half-moves
15 Kc8 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 Kg6 loss in 2 half-moves
22 Kg7 loss in 2 half-moves
23 Kh7 loss in 2 half-moves
24 Ra2 loss in 2 half-moves
25 Rb2 loss in 2 half-moves
26 Rg1 loss in 2 half-moves
27 Rh2 loss in 2 half-moves