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EGTB: win in 4 half-moves

# move score
1 Rf1 win in 3 half-moves
2 Kg6 draw
3 Kh6 draw
4 Kh8 draw
5 Rh1 draw
6 Kg7 loss in 6 half-moves
7 Kg8 loss in 6 half-moves
8 Nb1 loss in 2 half-moves
9 Nb3 loss in 2 half-moves
10 Nc4 loss in 2 half-moves
11 Ne4 loss in 2 half-moves
12 Nf1 loss in 2 half-moves
13 Nf3 loss in 2 half-moves
14 Ra1 loss in 2 half-moves
15 Rb1 loss in 2 half-moves
16 Rc1 loss in 2 half-moves
17 Re1 loss in 2 half-moves
18 Rg1 loss in 2 half-moves