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EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 Ra6 draw
3 Rc6 draw
4 Rd6 draw
5 Re6 draw
6 Rg1 draw
7 Rg2 draw
8 Rg3 draw
9 Rg5 draw
10 Kd1 loss in 2 half-moves
11 Kd3 loss in 2 half-moves
12 Kd4 loss in 2 half-moves
13 Ke4 loss in 2 half-moves
14 Kf1 loss in 2 half-moves
15 Kf3 loss in 2 half-moves
16 Kf4 loss in 2 half-moves
17 Rb6 loss in 2 half-moves
18 Rf6 loss in 2 half-moves
19 Rg7 loss in 2 half-moves
20 Rg8 loss in 2 half-moves
21 Rh6 loss in 2 half-moves
22 K1d2 loss in 1 half-moves
23 K1e2 loss in 1 half-moves
24 K1f2 loss in 1 half-moves
25 K3d2 loss in 1 half-moves
26 K3e2 loss in 1 half-moves
27 K3f2 loss in 1 half-moves