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EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 Nc1 draw
3 Nc3 draw
4 Nf4 draw
5 Ng1 draw
6 Ng3 draw
7 Re8 draw
8 Rf8 draw
9 Rg5 draw
10 Rg6 draw
11 Rg7 draw
12 Rh8 draw
13 Nd4 loss in 2 half-moves
14 Ra8 loss in 2 half-moves
15 Rb8 loss in 2 half-moves
16 Rc8 loss in 2 half-moves
17 Rd8 loss in 2 half-moves
18 Rg1 loss in 2 half-moves
19 Rg2 loss in 2 half-moves
20 Rg3 loss in 2 half-moves