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EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 Nc3 draw
3 Rb7 draw
4 Rc7 draw
5 Rd7 draw
6 Rg8 draw
7 Rg2 loss in 4 half-moves
8 Na3 loss in 2 half-moves
9 Nd2 loss in 2 half-moves
10 Ra7 loss in 2 half-moves
11 Re7 loss in 2 half-moves
12 Rf7 loss in 2 half-moves
13 Rg1 loss in 2 half-moves
14 Rg3 loss in 2 half-moves
15 Rg5 loss in 2 half-moves
16 Rg6 loss in 2 half-moves
17 Rh7 loss in 2 half-moves