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EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 Ra4 draw
3 Rb1 draw
4 Rb2 draw
5 Rb3 draw
6 Rb7 draw
7 Rf4 draw
8 Rh4 draw
9 K3e4 loss in 2 half-moves
10 K3f4 loss in 2 half-moves
11 K3g4 loss in 2 half-moves
12 K5e4 loss in 2 half-moves
13 K5f4 loss in 2 half-moves
14 K5g4 loss in 2 half-moves
15 Ke2 loss in 2 half-moves
16 Ke3 loss in 2 half-moves
17 Ke5 loss in 2 half-moves
18 Ke6 loss in 2 half-moves
19 Kf2 loss in 2 half-moves
20 Kf6 loss in 2 half-moves
21 Kg2 loss in 2 half-moves
22 Kg3 loss in 2 half-moves
23 Kg5 loss in 2 half-moves
24 Kg6 loss in 2 half-moves
25 Rb5 loss in 2 half-moves
26 Rb6 loss in 2 half-moves
27 Rb8 loss in 2 half-moves
28 Rc4 loss in 2 half-moves
29 Rd4 loss in 2 half-moves
30 Re4 loss in 2 half-moves