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EGTB: win in 4 half-moves

# move score
1 Rg7 win in 3 half-moves
2 Kh1 draw
3 Kh2 draw
4 Ra3 draw
5 Ra4 draw
6 Ra5 draw
7 Ra6 draw
8 Rd7 draw
9 Re7 draw
10 Rf7 draw
11 Rh7 draw
12 Ke3 loss in 2 half-moves
13 Ke4 loss in 2 half-moves
14 Ke5 loss in 2 half-moves
15 Kf1 loss in 2 half-moves
16 Kf2 loss in 2 half-moves
17 Kf3 loss in 2 half-moves
18 Kf5 loss in 2 half-moves
19 Kg2 loss in 2 half-moves
20 Kg3 loss in 2 half-moves
21 Kg4 loss in 2 half-moves
22 Kg5 loss in 2 half-moves
23 Ra1 loss in 2 half-moves
24 Ra2 loss in 2 half-moves
25 Ra8 loss in 2 half-moves
26 Rb7 loss in 2 half-moves
27 Rc7 loss in 2 half-moves