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EGTB: win in 4 half-moves

# move score
1 Rg1 win in 3 half-moves
2 Rg5 win in 3 half-moves
3 Rb7 draw
4 Rc7 draw
5 Rd7 draw
6 Re7 draw
7 Rg2 draw
8 Rg3 draw
9 Rg4 draw
10 Rg6 draw
11 K2d3 loss in 2 half-moves
12 K2e3 loss in 2 half-moves
13 K2f3 loss in 2 half-moves
14 K4d3 loss in 2 half-moves
15 K4e3 loss in 2 half-moves
16 K4f3 loss in 2 half-moves
17 Kd1 loss in 2 half-moves
18 Kd2 loss in 2 half-moves
19 Kd4 loss in 2 half-moves
20 Kd5 loss in 2 half-moves
21 Ke1 loss in 2 half-moves
22 Ke5 loss in 2 half-moves
23 Kf1 loss in 2 half-moves
24 Kf2 loss in 2 half-moves
25 Kf4 loss in 2 half-moves
26 Kf5 loss in 2 half-moves
27 Ra7 loss in 2 half-moves
28 Rf7 loss in 2 half-moves
29 Rg8 loss in 2 half-moves
30 Rh7 loss in 2 half-moves