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EGTB: win in 4 half-moves

# move score
1 Rg6 win in 3 half-moves
2 Ra2 draw
3 Rc2 draw
4 Rd2 draw
5 Re2 draw
6 Rg1 draw
7 Rg5 draw
8 Rg7 draw
9 Rg8 draw
10 Kc7 loss in 2 half-moves
11 Kc8 loss in 2 half-moves
12 Kd6 loss in 2 half-moves
13 Kdd7 loss in 2 half-moves
14 Kde8 loss in 2 half-moves
15 Ke6 loss in 2 half-moves
16 Ked7 loss in 2 half-moves
17 Kee8 loss in 2 half-moves
18 Kf6 loss in 2 half-moves
19 Kf7 loss in 2 half-moves
20 Kf8 loss in 2 half-moves
21 Rb2 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 Rh2 loss in 2 half-moves