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EGTB: win in 4 half-moves

# move score
1 Rg3 win in 3 half-moves
2 Kc1 draw
3 Kd1 draw
4 Ke1 draw
5 Rc7 draw
6 Rd7 draw
7 Re7 draw
8 Rg1 draw
9 Rg2 draw
10 Rg4 draw
11 Rg8 draw
12 Rh7 draw
13 Ka3 loss in 2 half-moves
14 Ka5 loss in 2 half-moves
15 Kb3 loss in 2 half-moves
16 Kb4 loss in 2 half-moves
17 Kb5 loss in 2 half-moves
18 Kc2 loss in 2 half-moves
19 Kc3 loss in 2 half-moves
20 Kd3 loss in 2 half-moves
21 Ke2 loss in 2 half-moves
22 Ke3 loss in 2 half-moves
23 Ra7 loss in 2 half-moves
24 Rb7 loss in 2 half-moves
25 Rf7 loss in 2 half-moves
26 Rg5 loss in 2 half-moves
27 Rg6 loss in 2 half-moves