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EGTB: win in 20 half-moves

# move score
1 Rb8 win in 19 half-moves
2 Rb6 draw
3 Rg2 draw
4 Rh2 draw
5 Ka2 loss in 2 half-moves
6 Ka4 loss in 2 half-moves
7 Kb3 loss in 2 half-moves
8 Kb4 loss in 2 half-moves
9 Kd7 loss in 2 half-moves
10 Kd8 loss in 2 half-moves
11 Ke7 loss in 2 half-moves
12 Kf7 loss in 2 half-moves
13 Kf8 loss in 2 half-moves
14 Ra2 loss in 2 half-moves
15 Rb1 loss in 2 half-moves
16 Rb3 loss in 2 half-moves
17 Rb4 loss in 2 half-moves
18 Rb5 loss in 2 half-moves
19 Rb7 loss in 2 half-moves
20 Rc2 loss in 2 half-moves
21 Rd2 loss in 2 half-moves
22 Re2 loss in 2 half-moves
23 Rf2 loss in 2 half-moves