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EGTB: win in 12 half-moves

# move score
1 Rf8 win in 11 half-moves
2 Ra4 draw
3 Rb4 draw
4 Rc4 draw
5 Rf1 draw
6 Rf5 draw
7 Rf6 draw
8 Rf7 draw
9 K7b7 loss in 2 half-moves
10 K7b8 loss in 2 half-moves
11 K8b7 loss in 2 half-moves
12 K8b8 loss in 2 half-moves
13 Ka6 loss in 2 half-moves
14 Kb6 loss in 2 half-moves
15 Rd4 loss in 2 half-moves
16 Re4 loss in 2 half-moves
17 Rf2 loss in 2 half-moves
18 Rf3 loss in 2 half-moves
19 Rg4 loss in 2 half-moves
20 Rh4 loss in 2 half-moves