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EGTB: win in 4 half-moves

# move score
1 Rf2 win in 3 half-moves
2 Kf1 draw
3 Kg1 draw
4 Kh1 draw
5 Rb7 draw
6 Rc7 draw
7 Rd7 draw
8 Re7 draw
9 Rf1 draw
10 Rf3 draw
11 Rf4 draw
12 Rf5 draw
13 Rf6 draw
14 Kc3 loss in 2 half-moves
15 Kc4 loss in 2 half-moves
16 Kc5 loss in 2 half-moves
17 Kd3 loss in 2 half-moves
18 Kd5 loss in 2 half-moves
19 Ke3 loss in 2 half-moves
20 Ke4 loss in 2 half-moves
21 Ke5 loss in 2 half-moves
22 Kf2 loss in 2 half-moves
23 Kf3 loss in 2 half-moves
24 Kg3 loss in 2 half-moves
25 Kh2 loss in 2 half-moves
26 Kh3 loss in 2 half-moves
27 Ra7 loss in 2 half-moves
28 Rf8 loss in 2 half-moves
29 Rg7 loss in 2 half-moves
30 Rh7 loss in 2 half-moves