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EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 Rg8 win in 3 half-moves
3 Ra2 draw
4 Rc2 draw
5 Rd2 draw
6 Re2 draw
7 Rg3 draw
8 Rg5 draw
9 Rg6 draw
10 Rg7 draw
11 K5d6 loss in 2 half-moves
12 K5e6 loss in 2 half-moves
13 K5f6 loss in 2 half-moves
14 K7d6 loss in 2 half-moves
15 K7e6 loss in 2 half-moves
16 K7f6 loss in 2 half-moves
17 Kd4 loss in 2 half-moves
18 Kd5 loss in 2 half-moves
19 Kd7 loss in 2 half-moves
20 Kd8 loss in 2 half-moves
21 Ke4 loss in 2 half-moves
22 Ke8 loss in 2 half-moves
23 Kf4 loss in 2 half-moves
24 Kf5 loss in 2 half-moves
25 Kf7 loss in 2 half-moves
26 Kf8 loss in 2 half-moves
27 Rb2 loss in 2 half-moves
28 Rf2 loss in 2 half-moves
29 Rg1 loss in 2 half-moves
30 Rh2 loss in 2 half-moves