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EGTB: win in 4 half-moves

# move score
1 Rf7 win in 3 half-moves
2 Re3 draw
3 Rf2 draw
4 Rf4 draw
5 Rf5 draw
6 Rf6 draw
7 Rf8 draw
8 Rg3 draw
9 g7 loss in 2 half-moves
10 Nb3 loss in 2 half-moves
11 Nb7 loss in 2 half-moves
12 Nc4 loss in 2 half-moves
13 Nc6 loss in 2 half-moves
14 Ra3 loss in 2 half-moves
15 Rb3 loss in 2 half-moves
16 Rc3 loss in 2 half-moves
17 Rd3 loss in 2 half-moves
18 Rf1 loss in 2 half-moves
19 Rh3 loss in 2 half-moves