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EGTB: win in 4 half-moves

# move score
1 Rgf3 win in 3 half-moves
2 Rg6 draw
3 Rg7 draw
4 Rg8 draw
5 Rgc3 draw
6 Rgd3 draw
7 Ra2 loss in 2 half-moves
8 Ra3 loss in 2 half-moves
9 Rb1 loss in 2 half-moves
10 Rb4 loss in 2 half-moves
11 Rb5 loss in 2 half-moves
12 Rb6 loss in 2 half-moves
13 Rb7 loss in 2 half-moves
14 Rb8 loss in 2 half-moves
15 Rbc3 loss in 2 half-moves
16 Rbd3 loss in 2 half-moves
17 Rbe3 loss in 2 half-moves
18 Rbf3 loss in 2 half-moves
19 Rbg2 loss in 2 half-moves
20 Rc2 loss in 2 half-moves
21 Rd2 loss in 2 half-moves
22 Re2 loss in 2 half-moves
23 Rf2 loss in 2 half-moves
24 Rg1 loss in 2 half-moves
25 Rg4 loss in 2 half-moves
26 Rg5 loss in 2 half-moves
27 Rge3 loss in 2 half-moves
28 Rgg2 loss in 2 half-moves
29 Rh2 loss in 2 half-moves
30 Rh3 loss in 2 half-moves