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EGTB: win in 4 half-moves

# move score
1 Rf4 win in 3 half-moves
2 Ra8 draw
3 Rb8 draw
4 Rc8 draw
5 Rd8 draw
6 Rf5 draw
7 Kd1 loss in 2 half-moves
8 Kd2 loss in 2 half-moves
9 Kd3 loss in 2 half-moves
10 Ke1 loss in 2 half-moves
11 Ke4 loss in 2 half-moves
12 Kee3 loss in 2 half-moves
13 Kef2 loss in 2 half-moves
14 Kf1 loss in 2 half-moves
15 Kf4 loss in 2 half-moves
16 Kfe3 loss in 2 half-moves
17 Kff2 loss in 2 half-moves
18 Kg2 loss in 2 half-moves
19 Kg3 loss in 2 half-moves
20 Kg4 loss in 2 half-moves
21 Re8 loss in 2 half-moves
22 Rf6 loss in 2 half-moves
23 Rf7 loss in 2 half-moves
24 Rg8 loss in 2 half-moves
25 Rh8 loss in 2 half-moves