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EGTB: win in 4 half-moves

# move score
1 Rf6 win in 3 half-moves
2 Ra1 draw
3 Rb1 draw
4 Rc1 draw
5 Rd1 draw
6 Rf4 draw
7 Rf5 draw
8 Rf7 draw
9 Rf8 draw
10 Kb6 loss in 2 half-moves
11 Kb7 loss in 2 half-moves
12 Kb8 loss in 2 half-moves
13 Kc6 loss in 2 half-moves
14 Kcc8 loss in 2 half-moves
15 Kcd7 loss in 2 half-moves
16 Kd6 loss in 2 half-moves
17 Kdc8 loss in 2 half-moves
18 Kdd7 loss in 2 half-moves
19 Ke7 loss in 2 half-moves
20 Ke8 loss in 2 half-moves
21 Re1 loss in 2 half-moves
22 Rf2 loss in 2 half-moves
23 Rf3 loss in 2 half-moves
24 Rg1 loss in 2 half-moves
25 Rh1 loss in 2 half-moves