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EGTB: win in 4 half-moves

# move score
1 Rg8 win in 3 half-moves
2 Re1 draw
3 Re8 draw
4 Ree2 draw
5 Reg3 draw
6 Rf2 draw
7 Rf3 draw
8 Rg1 draw
9 Rgg3 draw
10 Rh2 draw
11 Rh3 draw
12 Rge2 loss in 4 half-moves
13 Ra2 loss in 2 half-moves
14 Ra3 loss in 2 half-moves
15 Rb2 loss in 2 half-moves
16 Rb3 loss in 2 half-moves
17 Rc2 loss in 2 half-moves
18 Rc3 loss in 2 half-moves
19 Rd2 loss in 2 half-moves
20 Rd3 loss in 2 half-moves
21 Re4 loss in 2 half-moves
22 Re5 loss in 2 half-moves
23 Re6 loss in 2 half-moves
24 Re7 loss in 2 half-moves
25 Rg4 loss in 2 half-moves
26 Rg5 loss in 2 half-moves
27 Rg6 loss in 2 half-moves
28 Rg7 loss in 2 half-moves