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EGTB: win in 4 half-moves

# move score
1 Rg7 win in 3 half-moves
2 Ne6 draw
3 Nf3 draw
4 Nf7 draw
5 Nh7 draw
6 Ra7 draw
7 Rb7 draw
8 Rc5 draw
9 Rc6 draw
10 Rc8 draw
11 Rd7 draw
12 Ne4 loss in 2 half-moves
13 Nh3 loss in 2 half-moves
14 Rc1 loss in 2 half-moves
15 Rc2 loss in 2 half-moves
16 Rc3 loss in 2 half-moves
17 Rc4 loss in 2 half-moves
18 Re7 loss in 2 half-moves
19 Rf7 loss in 2 half-moves
20 Rh7 loss in 2 half-moves