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EGTB: win in 6 half-moves

# move score
1 Rg1 win in 5 half-moves
2 Rc5 draw
3 Rd5 draw
4 Re5 draw
5 Rf5 draw
6 Rg2 draw
7 Rg6 draw
8 Rg7 draw
9 Rg8 draw
10 K1b1 loss in 2 half-moves
11 K1b2 loss in 2 half-moves
12 K2b1 loss in 2 half-moves
13 K2b2 loss in 2 half-moves
14 Ka3 loss in 2 half-moves
15 Kb3 loss in 2 half-moves
16 Ra5 loss in 2 half-moves
17 Rb5 loss in 2 half-moves
18 Rg3 loss in 2 half-moves
19 Rg4 loss in 2 half-moves
20 Rh5 loss in 2 half-moves