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EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Re8 win in 7 half-moves
3 Kb6 draw
4 Kb7 draw
5 Kb8 draw
6 Kc8 draw
7 Kcd7 draw
8 Kcd8 draw
9 Ke8 draw
10 Ked7 draw
11 Ked8 draw
12 Kf7 draw
13 Kf8 draw
14 Ra8 draw
15 Rc8 draw
16 Rg2 draw
17 Rg3 draw
18 Rg5 draw
19 Rg6 draw
20 Rg7 draw
21 Rh8 draw
22 Kc6 loss in 2 half-moves
23 Kcd6 loss in 2 half-moves
24 Ke6 loss in 2 half-moves
25 Ked6 loss in 2 half-moves
26 Kf6 loss in 2 half-moves
27 Rd8 loss in 2 half-moves
28 Rf8 loss in 2 half-moves
29 Rg1 loss in 2 half-moves
30 Rg4 loss in 2 half-moves