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EGTB: win in 4 half-moves

# move score
1 Rg5 win in 3 half-moves
2 Kb3 draw
3 Kb4 draw
4 Kc3 draw
5 Kd3 draw
6 Kd4 draw
7 Kg5 draw
8 Kg7 draw
9 Kh7 draw
10 Rc1 draw
11 Rg2 draw
12 Rg3 draw
13 Rg4 draw
14 Kb5 loss in 2 half-moves
15 Kc5 loss in 2 half-moves
16 Kd5 loss in 2 half-moves
17 Kf5 loss in 2 half-moves
18 Kf6 loss in 2 half-moves
19 Kf7 loss in 2 half-moves
20 Kh5 loss in 2 half-moves
21 Kh6 loss in 2 half-moves
22 Ra1 loss in 2 half-moves
23 Rb1 loss in 2 half-moves
24 Rd1 loss in 2 half-moves
25 Re1 loss in 2 half-moves
26 Rf1 loss in 2 half-moves
27 Rh1 loss in 2 half-moves