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EGTB: win in 4 half-moves

# move score
1 Rg6 win in 3 half-moves
2 Kd8 draw
3 Ke7 draw
4 Kef7 draw
5 Kef8 draw
6 Kg8 draw
7 Kgf7 draw
8 Kgf8 draw
9 Kh6 draw
10 Kh7 draw
11 Kh8 draw
12 Rc2 draw
13 Rg1 draw
14 Rh2 draw
15 Kd7 loss in 2 half-moves
16 Kf6 loss in 2 half-moves
17 Kg6 loss in 2 half-moves
18 Ra2 loss in 2 half-moves
19 Rb2 loss in 2 half-moves
20 Rd2 loss in 2 half-moves
21 Re2 loss in 2 half-moves
22 Rf2 loss in 2 half-moves
23 Rg3 loss in 2 half-moves
24 Rg4 loss in 2 half-moves
25 Rg5 loss in 2 half-moves