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EGTB: win in 6 half-moves

# move score
1 Rg1 win in 5 half-moves
2 Rg3 win in 5 half-moves
3 Ra8 draw
4 Rb8 draw
5 Re8 draw
6 Rg2 draw
7 Rg4 draw
8 Rg5 draw
9 K1b1 loss in 2 half-moves
10 K1b2 loss in 2 half-moves
11 K2b1 loss in 2 half-moves
12 K2b2 loss in 2 half-moves
13 Ka3 loss in 2 half-moves
14 Kb3 loss in 2 half-moves
15 Rc8 loss in 2 half-moves
16 Rd8 loss in 2 half-moves
17 Rf8 loss in 2 half-moves
18 Rg6 loss in 2 half-moves
19 Rg7 loss in 2 half-moves
20 Rh8 loss in 2 half-moves