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EGTB: win in 4 half-moves

# move score
1 Rg8 win in 3 half-moves
2 Kg6 draw
3 Kh6 draw
4 Ra1 draw
5 Rb1 draw
6 Rc1 draw
7 Rg6 draw
8 Kd7 loss in 2 half-moves
9 Kd8 loss in 2 half-moves
10 Ke7 loss in 2 half-moves
11 Kf7 loss in 2 half-moves
12 Kf8 loss in 2 half-moves
13 Kg7 loss in 2 half-moves
14 Kg8 loss in 2 half-moves
15 Kh8 loss in 2 half-moves
16 Rd1 loss in 2 half-moves
17 Re1 loss in 2 half-moves
18 Rf1 loss in 2 half-moves
19 Rg2 loss in 2 half-moves
20 Rg3 loss in 2 half-moves
21 Rg4 loss in 2 half-moves
22 Rg5 loss in 2 half-moves
23 Rg7 loss in 2 half-moves
24 Rh1 loss in 2 half-moves