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EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 Rb2 draw
3 Rb7 draw
4 Rb8 draw
5 Rd4 draw
6 Re4 draw
7 Rf4 draw
8 Rh4 draw
9 Kc6 loss in 2 half-moves
10 Kc7 loss in 2 half-moves
11 Kc8 loss in 2 half-moves
12 Kd6 loss in 2 half-moves
13 Kd8 loss in 2 half-moves
14 Ke6 loss in 2 half-moves
15 Ke7 loss in 2 half-moves
16 Ke8 loss in 2 half-moves
17 Kg5 loss in 2 half-moves
18 Kg6 loss in 2 half-moves
19 Kg7 loss in 2 half-moves
20 Kh5 loss in 2 half-moves
21 Kh7 loss in 2 half-moves
22 Ra4 loss in 2 half-moves
23 Rb1 loss in 2 half-moves
24 Rb3 loss in 2 half-moves
25 Rb5 loss in 2 half-moves
26 Rb6 loss in 2 half-moves
27 Rc4 loss in 2 half-moves