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EGTB: win in 4 half-moves

# move score
1 Rg8 win in 3 half-moves
2 Kg4 draw
3 Kg5 draw
4 Kh3 draw
5 Kh5 draw
6 Rd8 draw
7 Re2 draw
8 Re5 draw
9 Re6 draw
10 Re7 draw
11 Rf8 draw
12 Rh8 draw
13 Kg3 loss in 2 half-moves
14 Ra8 loss in 2 half-moves
15 Rb8 loss in 2 half-moves
16 Rc8 loss in 2 half-moves
17 Re1 loss in 2 half-moves
18 Re3 loss in 2 half-moves
19 Re4 loss in 2 half-moves