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EGTB: win in 2 half-moves

# move score
1 Rg7 win in 1 half-moves
2 Kh2 draw
3 Rg5 draw
4 Rg6 draw
5 Kg2 loss in 10 half-moves
6 Rf1 loss in 4 half-moves
7 Ra1 loss in 2 half-moves
8 Rb1 loss in 2 half-moves
9 Rc1 loss in 2 half-moves
10 Rd1 loss in 2 half-moves
11 Re1 loss in 2 half-moves
12 Rg2 loss in 2 half-moves
13 Rg3 loss in 2 half-moves
14 Rg4 loss in 2 half-moves
15 Rg8 loss in 2 half-moves