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EGTB: win in 4 half-moves

# move score
1 Rgg5 win in 3 half-moves
2 Rb1 draw
3 Rb2 draw
4 Rb4 draw
5 Rb6 draw
6 Rbb3 draw
7 Rbg5 draw
8 Rf3 draw
9 Rf5 draw
10 Rg1 draw
11 Rg2 draw
12 Rg4 draw
13 Rh3 draw
14 Rh5 draw
15 Ra3 loss in 2 half-moves
16 Ra5 loss in 2 half-moves
17 Rb7 loss in 2 half-moves
18 Rb8 loss in 2 half-moves
19 Rc3 loss in 2 half-moves
20 Rc5 loss in 2 half-moves
21 Rd3 loss in 2 half-moves
22 Rd5 loss in 2 half-moves
23 Re3 loss in 2 half-moves
24 Re5 loss in 2 half-moves
25 Rg6 loss in 2 half-moves
26 Rg7 loss in 2 half-moves
27 Rg8 loss in 2 half-moves
28 Rgb3 loss in 2 half-moves