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EGTB: win in 4 half-moves

# move score
1 Rg8 win in 3 half-moves
2 Kf7 draw
3 Rb2 draw
4 Rd2 draw
5 Re2 draw
6 Rf2 draw
7 Rg5 draw
8 Kf8 loss in 6 half-moves
9 Ke8 loss in 4 half-moves
10 Rg7 loss in 4 half-moves
11 Rh2 loss in 4 half-moves
12 Kd6 loss in 2 half-moves
13 Kd7 loss in 2 half-moves
14 Kd8 loss in 2 half-moves
15 Ke6 loss in 2 half-moves
16 Kf6 loss in 2 half-moves
17 Ra2 loss in 2 half-moves
18 Rc2 loss in 2 half-moves
19 Rg1 loss in 2 half-moves
20 Rg3 loss in 2 half-moves
21 Rg4 loss in 2 half-moves
22 Rg6 loss in 2 half-moves