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EGTB: win in 4 half-moves

# move score
1 Rg6 win in 3 half-moves
2 K6a7 draw
3 K6b7 draw
4 K6c7 draw
5 K8a7 draw
6 K8b7 draw
7 K8c7 draw
8 Ka6 draw
9 Ka8 draw
10 Kc6 draw
11 Kc8 draw
12 Ra1 draw
13 Re1 draw
14 Rf1 draw
15 Rg7 draw
16 Rg8 draw
17 Rh1 draw
18 Ka5 loss in 2 half-moves
19 Kb5 loss in 2 half-moves
20 Kc5 loss in 2 half-moves
21 Rb1 loss in 2 half-moves
22 Rc1 loss in 2 half-moves
23 Rd1 loss in 2 half-moves
24 Rg2 loss in 2 half-moves
25 Rg3 loss in 2 half-moves
26 Rg4 loss in 2 half-moves
27 Rg5 loss in 2 half-moves