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EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 Kh1 draw
3 Kh2 draw
4 Kh3 draw
5 Rb1 draw
6 Rb2 draw
7 Rb3 draw
8 Rb8 draw
9 Rc4 draw
10 Rd4 draw
11 Re4 draw
12 Rf4 draw
13 Rh4 draw
14 Ke5 loss in 2 half-moves
15 Ke6 loss in 2 half-moves
16 Ke7 loss in 2 half-moves
17 Kf1 loss in 2 half-moves
18 Kf2 loss in 2 half-moves
19 Kf3 loss in 2 half-moves
20 Kf5 loss in 2 half-moves
21 Kf7 loss in 2 half-moves
22 Kg1 loss in 2 half-moves
23 Kg3 loss in 2 half-moves
24 Kg5 loss in 2 half-moves
25 Kg6 loss in 2 half-moves
26 Kg7 loss in 2 half-moves
27 Ra4 loss in 2 half-moves
28 Rb5 loss in 2 half-moves
29 Rb6 loss in 2 half-moves
30 Rb7 loss in 2 half-moves