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EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 Rb3 draw
3 Rb4 draw
4 Rb5 draw
5 Rbb1 draw
6 Rbg2 draw
7 Rg3 draw
8 Rg5 draw
9 Rgg2 draw
10 Rgh1 draw
11 Rh3 draw
12 Rh4 draw
13 Rh5 draw
14 Rhh1 draw
15 Rgb1 loss in 4 half-moves
16 Ra1 loss in 2 half-moves
17 Ra2 loss in 2 half-moves
18 Rb6 loss in 2 half-moves
19 Rb7 loss in 2 half-moves
20 Rb8 loss in 2 half-moves
21 Rbc2 loss in 2 half-moves
22 Rbd2 loss in 2 half-moves
23 Rbe2 loss in 2 half-moves
24 Rbf2 loss in 2 half-moves
25 Rc1 loss in 2 half-moves
26 Rd1 loss in 2 half-moves
27 Re1 loss in 2 half-moves
28 Rf1 loss in 2 half-moves
29 Rg6 loss in 2 half-moves
30 Rg7 loss in 2 half-moves
31 Rg8 loss in 2 half-moves
32 Rh6 loss in 2 half-moves
33 Rh7 loss in 2 half-moves
34 Rh8 loss in 2 half-moves
35 Rhc2 loss in 2 half-moves
36 Rhd2 loss in 2 half-moves
37 Rhe2 loss in 2 half-moves
38 Rhf2 loss in 2 half-moves
39 Rhg2 loss in 2 half-moves