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EGTB: win in 4 half-moves

# move score
1 Rf6 win in 3 half-moves
2 Rf8 win in 3 half-moves
3 Ra2 draw
4 Rc2 draw
5 Rd2 draw
6 Re2 draw
7 Rf3 draw
8 Rf4 draw
9 Rf5 draw
10 Rf7 draw
11 Kd6 loss in 2 half-moves
12 Kd7 loss in 2 half-moves
13 Kd8 loss in 2 half-moves
14 Ke6 loss in 2 half-moves
15 Ke8 loss in 2 half-moves
16 Kef6 loss in 2 half-moves
17 Kef7 loss in 2 half-moves
18 Kef8 loss in 2 half-moves
19 Kg6 loss in 2 half-moves
20 Kg8 loss in 2 half-moves
21 Kgf6 loss in 2 half-moves
22 Kgf7 loss in 2 half-moves
23 Kgf8 loss in 2 half-moves
24 Kh6 loss in 2 half-moves
25 Kh7 loss in 2 half-moves
26 Kh8 loss in 2 half-moves
27 Rb2 loss in 2 half-moves
28 Rf1 loss in 2 half-moves
29 Rg2 loss in 2 half-moves
30 Rh2 loss in 2 half-moves