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EGTB: win in 20 half-moves

# move score
1 Rg1 win in 19 half-moves
2 Ra6 draw
3 Rb6 draw
4 Rc6 draw
5 Rf6 draw
6 Rg2 draw
7 Rg3 draw
8 Rg4 draw
9 Rg5 draw
10 Kc1 loss in 2 half-moves
11 Kc2 loss in 2 half-moves
12 Kd2 loss in 2 half-moves
13 Ke1 loss in 2 half-moves
14 Ke2 loss in 2 half-moves
15 Kg4 loss in 2 half-moves
16 Kg5 loss in 2 half-moves
17 Kh4 loss in 2 half-moves
18 Kh6 loss in 2 half-moves
19 Rd6 loss in 2 half-moves
20 Re6 loss in 2 half-moves
21 Rg7 loss in 2 half-moves
22 Rg8 loss in 2 half-moves
23 Rh6 loss in 2 half-moves