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EGTB: win in 4 half-moves

# move score
1 Rg7 win in 3 half-moves
2 Ra1 draw
3 Ra2 draw
4 Ra3 draw
5 Ra4 draw
6 Re7 draw
7 Rf7 draw
8 Rh7 draw
9 Kd2 loss in 2 half-moves
10 Kd3 loss in 2 half-moves
11 Kd4 loss in 2 half-moves
12 Ke2 loss in 2 half-moves
13 Ke5 loss in 2 half-moves
14 Kee4 loss in 2 half-moves
15 Kef3 loss in 2 half-moves
16 Kf2 loss in 2 half-moves
17 Kf5 loss in 2 half-moves
18 Kfe4 loss in 2 half-moves
19 Kff3 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 Ra5 loss in 2 half-moves
24 Ra6 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
28 Rd7 loss in 2 half-moves