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EGTB: win in 4 half-moves

# move score
1 Rg8 win in 3 half-moves
2 K6h7 draw
3 K8h7 draw
4 Kg8 draw
5 Kh5 draw
6 Rc1 draw
7 Rg2 draw
8 Rg3 draw
9 Rg7 draw
10 Rh1 draw
11 K6g7 loss in 2 half-moves
12 K8g7 loss in 2 half-moves
13 Kg5 loss in 2 half-moves
14 Kg6 loss in 2 half-moves
15 Ra1 loss in 2 half-moves
16 Rb1 loss in 2 half-moves
17 Rd1 loss in 2 half-moves
18 Re1 loss in 2 half-moves
19 Rf1 loss in 2 half-moves
20 Rg4 loss in 2 half-moves
21 Rg5 loss in 2 half-moves
22 Rg6 loss in 2 half-moves