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EGTB: win in 4 half-moves

# move score
1 Rg2 win in 3 half-moves
2 Nb3 draw
3 Nf1 draw
4 Nf3 draw
5 Rg1 draw
6 Rh8 draw
7 Nb1 loss in 2 half-moves
8 Nc4 loss in 2 half-moves
9 Ne4 loss in 2 half-moves
10 Ra8 loss in 2 half-moves
11 Rb8 loss in 2 half-moves
12 Rc8 loss in 2 half-moves
13 Rd8 loss in 2 half-moves
14 Re8 loss in 2 half-moves
15 Rf8 loss in 2 half-moves
16 Rg3 loss in 2 half-moves
17 Rg4 loss in 2 half-moves
18 Rg5 loss in 2 half-moves
19 Rg6 loss in 2 half-moves
20 Rg7 loss in 2 half-moves