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EGTB: win in 4 half-moves

# move score
1 Rg7 win in 3 half-moves
2 Kf4 draw
3 Kf6 draw
4 Kf7 draw
5 Kf8 draw
6 Kg4 draw
7 Kg5 draw
8 Kg6 draw
9 Kg7 draw
10 Kh7 draw
11 Kh8 draw
12 Ra2 draw
13 Re2 draw
14 Rf2 draw
15 Rg1 draw
16 Rg5 draw
17 Rg6 draw
18 Rh2 draw
19 Ke4 loss in 2 half-moves
20 Ke5 loss in 2 half-moves
21 Ke6 loss in 2 half-moves
22 Rb2 loss in 2 half-moves
23 Rc2 loss in 2 half-moves
24 Rd2 loss in 2 half-moves
25 Rg3 loss in 2 half-moves
26 Rg4 loss in 2 half-moves