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EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Rb7 win in 3 half-moves
3 Kd6 draw
4 Kd7 draw
5 Ke7 draw
6 Kf6 draw
7 Kf7 draw
8 Kg6 draw
9 Kg7 draw
10 Kh5 draw
11 Kh7 draw
12 Ra1 draw
13 Rb8 draw
14 Rc1 draw
15 Rg1 draw
16 Rh1 draw
17 Kd5 loss in 2 half-moves
18 Ke5 loss in 2 half-moves
19 Kf5 loss in 2 half-moves
20 Kg5 loss in 2 half-moves
21 Rb2 loss in 2 half-moves
22 Rb3 loss in 2 half-moves
23 Rb4 loss in 2 half-moves
24 Rb5 loss in 2 half-moves
25 Rd1 loss in 2 half-moves
26 Re1 loss in 2 half-moves
27 Rf1 loss in 2 half-moves