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EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Rb1 win in 11 half-moves
3 Kb2 draw
4 Kb3 draw
5 Kc2 draw
6 Kd2 draw
7 Kd3 draw
8 Ke2 draw
9 Ke3 draw
10 Kf2 draw
11 Kg2 draw
12 Kg3 draw
13 Kg4 draw
14 Ra8 draw
15 Rb3 draw
16 Rh8 draw
17 Kb4 loss in 2 half-moves
18 Kc4 loss in 2 half-moves
19 Kd4 loss in 2 half-moves
20 Ke4 loss in 2 half-moves
21 Kf4 loss in 2 half-moves
22 Rb4 loss in 2 half-moves
23 Rb5 loss in 2 half-moves
24 Rb6 loss in 2 half-moves
25 Rb7 loss in 2 half-moves
26 Rc8 loss in 2 half-moves
27 Rd8 loss in 2 half-moves
28 Re8 loss in 2 half-moves
29 Rf8 loss in 2 half-moves
30 Rg8 loss in 2 half-moves