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EGTB: win in 4 half-moves

# move score
1 Rg6 win in 3 half-moves
2 Re2 draw
3 Re6 draw
4 Reg1 draw
5 Rf1 draw
6 Rf8 draw
7 Rg2 draw
8 Rge8 draw
9 Rh1 draw
10 Rh8 draw
11 Ree8 loss in 4 half-moves
12 Rgg1 loss in 4 half-moves
13 Ra1 loss in 2 half-moves
14 Ra8 loss in 2 half-moves
15 Rb1 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Rc1 loss in 2 half-moves
18 Rc8 loss in 2 half-moves
19 Rd1 loss in 2 half-moves
20 Rd8 loss in 2 half-moves
21 Re3 loss in 2 half-moves
22 Re4 loss in 2 half-moves
23 Re5 loss in 2 half-moves
24 Re7 loss in 2 half-moves
25 Rg3 loss in 2 half-moves
26 Rg4 loss in 2 half-moves
27 Rg5 loss in 2 half-moves
28 Rg7 loss in 2 half-moves