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EGTB: win in 12 half-moves

# move score
1 Rb3 win in 11 half-moves
2 Rb2 draw
3 Rbb1 draw
4 Re5 draw
5 Ra1 loss in 2 half-moves
6 Ra5 loss in 2 half-moves
7 Rb4 loss in 2 half-moves
8 Rb6 loss in 2 half-moves
9 Rb7 loss in 2 half-moves
10 Rb8 loss in 2 half-moves
11 Rc1 loss in 2 half-moves
12 Rc5 loss in 2 half-moves
13 Rd1 loss in 2 half-moves
14 Rd5 loss in 2 half-moves
15 Re1 loss in 2 half-moves
16 Rf1 loss in 2 half-moves
17 Rf5 loss in 2 half-moves
18 Rg5 loss in 2 half-moves
19 Rgb1 loss in 2 half-moves
20 Rh1 loss in 2 half-moves
21 Rh5 loss in 2 half-moves