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EGTB: win in 4 half-moves

# move score
1 Rg1 win in 3 half-moves
2 Ra2 draw
3 Ra3 draw
4 Ra4 draw
5 Ra8 draw
6 Rd1 draw
7 Re1 draw
8 Rf1 draw
9 Rh1 draw
10 Kb5 loss in 2 half-moves
11 Kb6 loss in 2 half-moves
12 Kb7 loss in 2 half-moves
13 Kc5 loss in 2 half-moves
14 Kc7 loss in 2 half-moves
15 Kd5 loss in 2 half-moves
16 Kd6 loss in 2 half-moves
17 Kd7 loss in 2 half-moves
18 Kg5 loss in 2 half-moves
19 Kg6 loss in 2 half-moves
20 Kg7 loss in 2 half-moves
21 Kh5 loss in 2 half-moves
22 Kh7 loss in 2 half-moves
23 Ra5 loss in 2 half-moves
24 Ra6 loss in 2 half-moves
25 Ra7 loss in 2 half-moves
26 Rb1 loss in 2 half-moves
27 Rc1 loss in 2 half-moves