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EGTB: win in 20 half-moves

# move score
1 Rb4 win in 19 half-moves
2 Ka5 draw
3 Kb5 draw
4 Rc4 draw
5 Rd4 draw
6 Re4 draw
7 Rf4 draw
8 Rg5 draw
9 Rg6 draw
10 Rg7 draw
11 Rg8 draw
12 Ka3 loss in 2 half-moves
13 Kb3 loss in 2 half-moves
14 Kb4 loss in 2 half-moves
15 Kc1 loss in 2 half-moves
16 Kc2 loss in 2 half-moves
17 Kd2 loss in 2 half-moves
18 Ke1 loss in 2 half-moves
19 Ke2 loss in 2 half-moves
20 Rg1 loss in 2 half-moves
21 Rg2 loss in 2 half-moves
22 Rg3 loss in 2 half-moves
23 Rh4 loss in 2 half-moves