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EGTB: win in 4 half-moves

# move score
1 Rf6 win in 3 half-moves
2 Kf7 draw
3 Kg7 draw
4 Kh7 draw
5 Ra2 draw
6 Rf3 draw
7 Rf4 draw
8 Rf5 draw
9 Rf7 draw
10 Rf8 draw
11 Rg2 draw
12 Rh2 draw
13 Kb4 loss in 2 half-moves
14 Kb5 loss in 2 half-moves
15 Kb6 loss in 2 half-moves
16 Kc4 loss in 2 half-moves
17 Kc6 loss in 2 half-moves
18 Kd4 loss in 2 half-moves
19 Kd5 loss in 2 half-moves
20 Kd6 loss in 2 half-moves
21 Kf5 loss in 2 half-moves
22 Kf6 loss in 2 half-moves
23 Kg5 loss in 2 half-moves
24 Kh5 loss in 2 half-moves
25 Kh6 loss in 2 half-moves
26 Rb2 loss in 2 half-moves
27 Rc2 loss in 2 half-moves
28 Rd2 loss in 2 half-moves
29 Re2 loss in 2 half-moves
30 Rf1 loss in 2 half-moves