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EGTB: win in 20 half-moves

# move score
1 Rb4 win in 19 half-moves
2 Nh3 draw
3 Ra1 draw
4 Rb8 draw
5 Rbb2 draw
6 Rbc1 draw
7 Rc4 draw
8 Rc8 draw
9 Ra2 loss in 6 half-moves
10 Rcb2 loss in 4 half-moves
11 Rcc1 loss in 4 half-moves
12 Ne2 loss in 2 half-moves
13 Nf3 loss in 2 half-moves
14 Rb3 loss in 2 half-moves
15 Rb5 loss in 2 half-moves
16 Rb6 loss in 2 half-moves
17 Rb7 loss in 2 half-moves
18 Rc3 loss in 2 half-moves
19 Rc5 loss in 2 half-moves
20 Rc6 loss in 2 half-moves
21 Rc7 loss in 2 half-moves
22 Rd1 loss in 2 half-moves
23 Rd2 loss in 2 half-moves
24 Re1 loss in 2 half-moves
25 Re2 loss in 2 half-moves
26 Rf1 loss in 2 half-moves
27 Rf2 loss in 2 half-moves
28 Rg2 loss in 2 half-moves
29 Rh2 loss in 2 half-moves