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EGTB: win in 6 half-moves

# move score
1 Rg8 win in 5 half-moves
2 Rb3 draw
3 Rf3 draw
4 Rg1 draw
5 Rg2 draw
6 Rg5 draw
7 Kc7 loss in 2 half-moves
8 Kc8 loss in 2 half-moves
9 Kd7 loss in 2 half-moves
10 Ke7 loss in 2 half-moves
11 Ke8 loss in 2 half-moves
12 Ra3 loss in 2 half-moves
13 Rc3 loss in 2 half-moves
14 Rd3 loss in 2 half-moves
15 Re3 loss in 2 half-moves
16 Rg4 loss in 2 half-moves
17 Rg6 loss in 2 half-moves
18 Rg7 loss in 2 half-moves
19 Rh3 loss in 2 half-moves