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EGTB: win in 6 half-moves

# move score
1 Rb8 win in 5 half-moves
2 K1b1 draw
3 K2b1 draw
4 Ka3 draw
5 Ra8 draw
6 Rf1 draw
7 Rf2 draw
8 Rf6 draw
9 Rf7 draw
10 Rg8 draw
11 Rh8 draw
12 K1b2 loss in 2 half-moves
13 K2b2 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 Re8 loss in 2 half-moves
18 Rf3 loss in 2 half-moves
19 Rf4 loss in 2 half-moves
20 Rf5 loss in 2 half-moves