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EGTB: win in 4 half-moves

# move score
1 Rg1 win in 3 half-moves
2 Ra2 draw
3 Ra4 draw
4 Ra8 draw
5 Rac1 draw
6 Rb1 draw
7 Rb3 draw
8 Rc2 draw
9 Rc4 draw
10 Rc8 draw
11 Rca3 draw
12 Rcc1 draw
13 Rg3 draw
14 Raa3 loss in 4 half-moves
15 Ra5 loss in 2 half-moves
16 Ra6 loss in 2 half-moves
17 Ra7 loss in 2 half-moves
18 Rc5 loss in 2 half-moves
19 Rc6 loss in 2 half-moves
20 Rc7 loss in 2 half-moves
21 Rd1 loss in 2 half-moves
22 Rd3 loss in 2 half-moves
23 Re1 loss in 2 half-moves
24 Re3 loss in 2 half-moves
25 Rf1 loss in 2 half-moves
26 Rf3 loss in 2 half-moves
27 Rh1 loss in 2 half-moves
28 Rh3 loss in 2 half-moves