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EGTB: win in 4 half-moves

# move score
1 Rf8 win in 3 half-moves
2 Rb2 draw
3 Rc2 draw
4 Rd2 draw
5 Re2 draw
6 Rf3 draw
7 Rf4 draw
8 Rf5 draw
9 Rf6 draw
10 Rf7 draw
11 K5c6 loss in 2 half-moves
12 K5d6 loss in 2 half-moves
13 K5e6 loss in 2 half-moves
14 K7c6 loss in 2 half-moves
15 K7d6 loss in 2 half-moves
16 K7e6 loss in 2 half-moves
17 Kc4 loss in 2 half-moves
18 Kc5 loss in 2 half-moves
19 Kc7 loss in 2 half-moves
20 Kc8 loss in 2 half-moves
21 Kd4 loss in 2 half-moves
22 Kd8 loss in 2 half-moves
23 Ke4 loss in 2 half-moves
24 Ke5 loss in 2 half-moves
25 Ke7 loss in 2 half-moves
26 Ke8 loss in 2 half-moves
27 Ra2 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