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EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 Ke4 draw
3 Ke5 draw
4 Kf4 draw
5 Kfg5 draw
6 Kg4 draw
7 Kh5 draw
8 Kh7 draw
9 Khg5 draw
10 Ra1 draw
11 Rb2 draw
12 Rb3 draw
13 Rb4 draw
14 Rb6 draw
15 Rc1 draw
16 Rf1 draw
17 Rg1 draw
18 Rh1 draw
19 Ke6 loss in 2 half-moves
20 Kf6 loss in 2 half-moves
21 Kfg6 loss in 2 half-moves
22 Kg7 loss in 2 half-moves
23 Khg6 loss in 2 half-moves
24 Rb7 loss in 2 half-moves
25 Rb8 loss in 2 half-moves
26 Rd1 loss in 2 half-moves
27 Re1 loss in 2 half-moves