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EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Ka6 draw
3 Ka7 draw
4 Ka8 draw
5 Kb2 draw
6 Kb3 draw
7 Kb8 draw
8 Kc2 draw
9 Kc7 draw
10 Kc8 draw
11 Ra8 draw
12 Rc8 draw
13 Rh1 draw
14 Rh5 draw
15 Rh6 draw
16 Rh7 draw
17 Kb4 loss in 2 half-moves
18 Kb6 loss in 2 half-moves
19 Kc4 loss in 2 half-moves
20 Kc6 loss in 2 half-moves
21 Kd2 loss in 2 half-moves
22 Kd3 loss in 2 half-moves
23 Kd4 loss in 2 half-moves
24 Rd8 loss in 2 half-moves
25 Re8 loss in 2 half-moves
26 Rf8 loss in 2 half-moves
27 Rg8 loss in 2 half-moves
28 Rh2 loss in 2 half-moves
29 Rh3 loss in 2 half-moves
30 Rh4 loss in 2 half-moves