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EGTB: win in 4 half-moves

# move score
1 Rg7 win in 3 half-moves
2 g5 draw
3 Na5 draw
4 Na7 draw
5 Nb4 draw
6 Nb8 draw
7 Nd4 draw
8 Nd8 draw
9 Ne5 draw
10 Ne7 draw
11 Ra7 loss in 2 half-moves
12 Rb7 loss in 2 half-moves
13 Rc8 loss in 2 half-moves
14 Rd7 loss in 2 half-moves
15 Re7 loss in 2 half-moves
16 Rf7 loss in 2 half-moves
17 Rh7 loss in 2 half-moves