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EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 Kg4 draw
3 Kh4 draw
4 Kh6 draw
5 Kh7 draw
6 Rc3 draw
7 Rg1 draw
8 Rg2 draw
9 Rg5 draw
10 Rh3 draw
11 Kg5 loss in 2 half-moves
12 Kg6 loss in 2 half-moves
13 Kg7 loss in 2 half-moves
14 Kg8 loss in 2 half-moves
15 Ra3 loss in 2 half-moves
16 Rb3 loss in 2 half-moves
17 Rd3 loss in 2 half-moves
18 Re3 loss in 2 half-moves
19 Rf3 loss in 2 half-moves
20 Rg6 loss in 2 half-moves
21 Rg7 loss in 2 half-moves
22 Rg8 loss in 2 half-moves