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EGTB: win in 20 half-moves

# move score
1 Rb4 win in 19 half-moves
2 Na5 draw
3 Na7 draw
4 Nb4 draw
5 Ra8 draw
6 Rb1 draw
7 Rb2 draw
8 Rb3 draw
9 Rb6 draw
10 Rc8 draw
11 Rd8 draw
12 Re8 draw
13 Nd4 loss in 2 half-moves
14 Nd8 loss in 2 half-moves
15 Ne5 loss in 2 half-moves
16 Ne7 loss in 2 half-moves
17 Rb5 loss in 2 half-moves
18 Rb7 loss in 2 half-moves
19 Rf8 loss in 2 half-moves
20 Rg8 loss in 2 half-moves
21 Rh8 loss in 2 half-moves