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EGTB: win in 4 half-moves

# move score
1 Rg2 win in 3 half-moves
2 Kg8 draw
3 Kh8 draw
4 Ra6 draw
5 Rb6 draw
6 Rg1 draw
7 Rg3 draw
8 Rg8 draw
9 Kd2 loss in 2 half-moves
10 Kd3 loss in 2 half-moves
11 Kd4 loss in 2 half-moves
12 Ke2 loss in 2 half-moves
13 Ke4 loss in 2 half-moves
14 Kf2 loss in 2 half-moves
15 Kf3 loss in 2 half-moves
16 Kf4 loss in 2 half-moves
17 Kg7 loss in 2 half-moves
18 Kh6 loss in 2 half-moves
19 Rc6 loss in 2 half-moves
20 Rd6 loss in 2 half-moves
21 Re6 loss in 2 half-moves
22 Rf6 loss in 2 half-moves
23 Rg4 loss in 2 half-moves
24 Rg5 loss in 2 half-moves
25 Rg7 loss in 2 half-moves
26 Rh6 loss in 2 half-moves