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EGTB: win in 4 half-moves

# move score
1 Rg6 win in 3 half-moves
2 Kg5 draw
3 Kg6 draw
4 Kh5 draw
5 Rb6 draw
6 Rd6 draw
7 Re8 draw
8 Rf6 draw
9 Kg7 loss in 2 half-moves
10 Kh7 loss in 2 half-moves
11 Ra6 loss in 2 half-moves
12 Rc6 loss in 2 half-moves
13 Re1 loss in 2 half-moves
14 Re2 loss in 2 half-moves
15 Re3 loss in 2 half-moves
16 Re4 loss in 2 half-moves
17 Re5 loss in 2 half-moves
18 Re7 loss in 2 half-moves