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EGTB: win in 4 half-moves

# move score
1 Rf1 win in 3 half-moves
2 Kg6 draw
3 Kg7 draw
4 Kg8 draw
5 Rb2 draw
6 Rb3 draw
7 Rb4 draw
8 Rb5 draw
9 Rc1 draw
10 Rd1 draw
11 Re1 draw
12 Rg1 draw
13 Rh1 draw
14 Kd3 loss in 2 half-moves
15 Kd4 loss in 2 half-moves
16 Kd5 loss in 2 half-moves
17 Ke3 loss in 2 half-moves
18 Ke5 loss in 2 half-moves
19 Ke6 loss in 2 half-moves
20 Ke7 loss in 2 half-moves
21 Ke8 loss in 2 half-moves
22 Kf3 loss in 2 half-moves
23 Kf4 loss in 2 half-moves
24 Kf5 loss in 2 half-moves
25 Kf6 loss in 2 half-moves
26 Kf8 loss in 2 half-moves
27 Ra1 loss in 2 half-moves
28 Rb6 loss in 2 half-moves
29 Rb7 loss in 2 half-moves
30 Rb8 loss in 2 half-moves