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EGTB: win in 4 half-moves

# move score
1 Rf3 win in 3 half-moves
2 Kd6 draw
3 Kd7 draw
4 Rd8 draw
5 Rf1 draw
6 Rf2 draw
7 Rf4 draw
8 Rf5 draw
9 Rg8 draw
10 Rh8 draw
11 Ka3 loss in 2 half-moves
12 Ka5 loss in 2 half-moves
13 Kb3 loss in 2 half-moves
14 Kb4 loss in 2 half-moves
15 Kb5 loss in 2 half-moves
16 Kb6 loss in 2 half-moves
17 Kb7 loss in 2 half-moves
18 Kb8 loss in 2 half-moves
19 Kc6 loss in 2 half-moves
20 Kc8 loss in 2 half-moves
21 Ra8 loss in 2 half-moves
22 Rb8 loss in 2 half-moves
23 Rc8 loss in 2 half-moves
24 Re8 loss in 2 half-moves
25 Rf6 loss in 2 half-moves
26 Rf7 loss in 2 half-moves
27 Kd8 loss in 1 half-moves