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EGTB: win in 4 half-moves

# move score
1 Rg8 win in 3 half-moves
2 Kb2 draw
3 Kb3 draw
4 Kc2 draw
5 Kd2 draw
6 Kd3 draw
7 Ke3 draw
8 Kf3 draw
9 Kf5 draw
10 Kg3 draw
11 Kg4 draw
12 Kg5 draw
13 Ra1 draw
14 Ra2 draw
15 Ra3 draw
16 Ra4 draw
17 Re8 draw
18 Rf8 draw
19 Rh8 draw
20 Kb4 loss in 2 half-moves
21 Kc4 loss in 2 half-moves
22 Kd4 loss in 2 half-moves
23 Ke4 loss in 2 half-moves
24 Ke5 loss in 2 half-moves
25 Ra5 loss in 2 half-moves
26 Ra6 loss in 2 half-moves
27 Ra7 loss in 2 half-moves
28 Rb8 loss in 2 half-moves
29 Rc8 loss in 2 half-moves
30 Rd8 loss in 2 half-moves