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EGTB: win in 4 half-moves

# move score
1 Rg8 win in 3 half-moves
2 Kd6 draw
3 Kd7 draw
4 Kd8 draw
5 Ke6 draw
6 Ke8 draw
7 Kf6 draw
8 Kf7 draw
9 Kf8 draw
10 Kg7 draw
11 Kg8 draw
12 Kh7 draw
13 Rb1 draw
14 Rg5 draw
15 Rg6 draw
16 Rg7 draw
17 Rh1 draw
18 Ra1 loss in 2 half-moves
19 Rc1 loss in 2 half-moves
20 Rd1 loss in 2 half-moves
21 Re1 loss in 2 half-moves
22 Rf1 loss in 2 half-moves
23 Rg2 loss in 2 half-moves
24 Rg3 loss in 2 half-moves
25 Rg4 loss in 2 half-moves