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EGTB: win in 4 half-moves

# move score
1 Rg3 win in 3 half-moves
2 Ke4 draw
3 Kf4 draw
4 Kg4 draw
5 Ra7 draw
6 Rb7 draw
7 Rd7 draw
8 Rg1 draw
9 Rg2 draw
10 Rg4 draw
11 Rg8 draw
12 Ka1 loss in 2 half-moves
13 Ka3 loss in 2 half-moves
14 Kb1 loss in 2 half-moves
15 Kb2 loss in 2 half-moves
16 Kb3 loss in 2 half-moves
17 Ke2 loss in 2 half-moves
18 Ke3 loss in 2 half-moves
19 Kf2 loss in 2 half-moves
20 Kg2 loss in 2 half-moves
21 Kg3 loss in 2 half-moves
22 Rc7 loss in 2 half-moves
23 Re7 loss in 2 half-moves
24 Rf7 loss in 2 half-moves
25 Rg5 loss in 2 half-moves
26 Rg6 loss in 2 half-moves
27 Rh7 loss in 2 half-moves