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EGTB: win in 4 half-moves

# move score
1 Rf6 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 Ke6 loss in 2 half-moves
10 Ke7 loss in 2 half-moves
11 Ke8 loss in 2 half-moves
12 Kf6 loss in 2 half-moves
13 Kff8 loss in 2 half-moves
14 Kfg7 loss in 2 half-moves
15 Kg6 loss in 2 half-moves
16 Kgf8 loss in 2 half-moves
17 Kgg7 loss in 2 half-moves
18 Kh7 loss in 2 half-moves
19 Kh8 loss in 2 half-moves
20 Ra2 loss in 2 half-moves
21 Rf1 loss in 2 half-moves
22 Rg2 loss in 2 half-moves
23 Rh2 loss in 2 half-moves