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EGTB: win in 4 half-moves

# move score
1 Rf7 win in 3 half-moves
2 Kf6 draw
3 Kf7 draw
4 Kg1 draw
5 Kg2 draw
6 Kg3 draw
7 Kg5 draw
8 Kg7 draw
9 Kh1 draw
10 Kh3 draw
11 Kh5 draw
12 Kh6 draw
13 Kh7 draw
14 Rb8 draw
15 Rf1 draw
16 Rf5 draw
17 Rf6 draw
18 Rg8 draw
19 Rh8 draw
20 Kf5 loss in 2 half-moves
21 Ra8 loss in 2 half-moves
22 Rc8 loss in 2 half-moves
23 Rd8 loss in 2 half-moves
24 Re8 loss in 2 half-moves
25 Rf2 loss in 2 half-moves
26 Rf3 loss in 2 half-moves
27 Rf4 loss in 2 half-moves