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EGTB: win in 4 half-moves

# move score
1 Kf8 win in 3 half-moves
2 Kf7 draw
3 Kgg8 draw
4 Kgh7 draw
5 Khg8 draw
6 Khh7 draw
7 Ra1 draw
8 Rb1 draw
9 Rc1 draw
10 Rd1 draw
11 Re1 draw
12 Rf2 draw
13 Rf7 draw
14 Rf8 draw
15 Kf6 loss in 2 half-moves
16 Kg6 loss in 2 half-moves
17 Kh6 loss in 2 half-moves
18 Rf3 loss in 1 half-moves
19 Rf4 loss in 1 half-moves
20 Rf5 loss in 1 half-moves
21 Rf6 loss in 1 half-moves
22 Rg1 loss in 1 half-moves
23 Rh1 loss in 1 half-moves