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EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Rb3 win in 9 half-moves
3 Kc5 draw
4 Kc6 draw
5 Kc7 draw
6 Rb1 draw
7 Rb4 draw
8 Rb5 draw
9 Rc8 draw
10 Rf8 draw
11 Rg8 draw
12 Rh8 draw
13 Kd2 loss in 2 half-moves
14 Kd3 loss in 2 half-moves
15 Kd4 loss in 2 half-moves
16 Kd5 loss in 2 half-moves
17 Kd7 loss in 2 half-moves
18 Ke2 loss in 2 half-moves
19 Ke4 loss in 2 half-moves
20 Ke5 loss in 2 half-moves
21 Ke6 loss in 2 half-moves
22 Ke7 loss in 2 half-moves
23 Kf2 loss in 2 half-moves
24 Kf3 loss in 2 half-moves
25 Kf4 loss in 2 half-moves
26 Ra8 loss in 2 half-moves
27 Rb6 loss in 2 half-moves
28 Rb7 loss in 2 half-moves
29 Rd8 loss in 2 half-moves
30 Re8 loss in 2 half-moves