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EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 K3b4 draw
3 K3c4 draw
4 K5b4 draw
5 K5c4 draw
6 Kb2 draw
7 Kb3 draw
8 Kb5 draw
9 Kb6 draw
10 Kc6 draw
11 Kd6 draw
12 Ra8 draw
13 Rc8 draw
14 Rh1 draw
15 Rh5 draw
16 Rh6 draw
17 Rh7 draw
18 K3d4 loss in 2 half-moves
19 K5d4 loss in 2 half-moves
20 Kc2 loss in 2 half-moves
21 Kd2 loss in 2 half-moves
22 Kd3 loss in 2 half-moves
23 Kd5 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