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EGTB: win in 4 half-moves

# move score
1 Rg2 win in 3 half-moves
2 Kf6 draw
3 Kf7 draw
4 Kf8 draw
5 Ra2 draw
6 Rb1 draw
7 Rb5 draw
8 Rb6 draw
9 Rb7 draw
10 Rf2 draw
11 Rh2 draw
12 Kg3 loss in 2 half-moves
13 Kg4 loss in 2 half-moves
14 Kg5 loss in 2 half-moves
15 Kg6 loss in 2 half-moves
16 Kg8 loss in 2 half-moves
17 Kh3 loss in 2 half-moves
18 Kh5 loss in 2 half-moves
19 Kh6 loss in 2 half-moves
20 Kh7 loss in 2 half-moves
21 Kh8 loss in 2 half-moves
22 Rb3 loss in 2 half-moves
23 Rb4 loss in 2 half-moves
24 Rb8 loss in 2 half-moves
25 Rc2 loss in 2 half-moves
26 Rd2 loss in 2 half-moves
27 Re2 loss in 2 half-moves