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EGTB: win in 20 half-moves

# move score
1 Rb1 win in 19 half-moves
2 Nc1 draw
3 Rd1 draw
4 Re1 draw
5 Rf2 draw
6 Rf3 draw
7 Rf4 draw
8 Rf5 draw
9 Rf7 draw
10 Ra1 loss in 4 half-moves
11 Nb4 loss in 2 half-moves
12 Nc3 loss in 2 half-moves
13 Rc1 loss in 2 half-moves
14 Rf6 loss in 2 half-moves
15 Rf8 loss in 2 half-moves
16 Rg1 loss in 2 half-moves
17 Rh1 loss in 2 half-moves