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EGTB: win in 20 half-moves

# move score
1 Rf4 win in 19 half-moves
2 Ke2 draw
3 Ke4 draw
4 Kf2 draw
5 Kf3 draw
6 Kf4 draw
7 Re6 draw
8 Rf3 draw
9 Rf5 draw
10 Rf7 draw
11 Rf8 draw
12 Rg6 draw
13 Rh6 draw
14 Rd6 loss in 4 half-moves
15 Kd2 loss in 2 half-moves
16 Kd3 loss in 2 half-moves
17 Kd4 loss in 2 half-moves
18 Ra6 loss in 2 half-moves
19 Rb6 loss in 2 half-moves
20 Rc6 loss in 2 half-moves
21 Rf1 loss in 2 half-moves
22 Rf2 loss in 2 half-moves