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EGTB: win in 4 half-moves

# move score
1 Rg8 win in 3 half-moves
2 Kh6 draw
3 Kh7 draw
4 Kh8 draw
5 Ra8 draw
6 Rb2 draw
7 Rb3 draw
8 Rb4 draw
9 Rb5 draw
10 Rf8 draw
11 Rh8 draw
12 Ke2 loss in 2 half-moves
13 Ke3 loss in 2 half-moves
14 Ke4 loss in 2 half-moves
15 Kf2 loss in 2 half-moves
16 Kf4 loss in 2 half-moves
17 Kf6 loss in 2 half-moves
18 Kf7 loss in 2 half-moves
19 Kf8 loss in 2 half-moves
20 Kg2 loss in 2 half-moves
21 Kg3 loss in 2 half-moves
22 Kg4 loss in 2 half-moves
23 Kg6 loss in 2 half-moves
24 Kg8 loss in 2 half-moves
25 Rb1 loss in 2 half-moves
26 Rb6 loss in 2 half-moves
27 Rb7 loss in 2 half-moves
28 Rc8 loss in 2 half-moves
29 Rd8 loss in 2 half-moves
30 Re8 loss in 2 half-moves