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EGTB: win in 4 half-moves

# move score
1 Rg2 win in 3 half-moves
2 Rg6 win in 3 half-moves
3 Ra7 draw
4 Rb7 draw
5 Rc7 draw
6 Rd7 draw
7 Rg1 draw
8 Rg3 draw
9 Rg4 draw
10 Rg5 draw
11 K3d4 loss in 2 half-moves
12 K3e4 loss in 2 half-moves
13 K3f4 loss in 2 half-moves
14 K5d4 loss in 2 half-moves
15 K5e4 loss in 2 half-moves
16 K5f4 loss in 2 half-moves
17 Kd2 loss in 2 half-moves
18 Kd3 loss in 2 half-moves
19 Kd5 loss in 2 half-moves
20 Kd6 loss in 2 half-moves
21 Ke2 loss in 2 half-moves
22 Ke6 loss in 2 half-moves
23 Kf2 loss in 2 half-moves
24 Kf3 loss in 2 half-moves
25 Kf5 loss in 2 half-moves
26 Kf6 loss in 2 half-moves
27 Re7 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