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EGTB: win in 4 half-moves

# move score
1 Rg1 win in 3 half-moves
2 Rb7 draw
3 Rd7 draw
4 Re7 draw
5 Rf7 draw
6 Rg2 draw
7 Rg3 draw
8 Rg4 draw
9 Rg5 draw
10 Kd4 loss in 2 half-moves
11 Kd5 loss in 2 half-moves
12 Kd6 loss in 2 half-moves
13 Ke4 loss in 2 half-moves
14 Ke6 loss in 2 half-moves
15 Kf4 loss in 2 half-moves
16 Kf5 loss in 2 half-moves
17 Kf6 loss in 2 half-moves
18 Kg1 loss in 2 half-moves
19 Kg2 loss in 2 half-moves
20 Kh2 loss in 2 half-moves
21 Ra7 loss in 2 half-moves
22 Rc7 loss in 2 half-moves
23 Rg6 loss in 2 half-moves
24 Rg8 loss in 2 half-moves
25 Rh7 loss in 2 half-moves