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EGTB: win in 4 half-moves

# move score
1 Rf6 win in 3 half-moves
2 Ka3 draw
3 Ka6 draw
4 Ra1 draw
5 Rf2 draw
6 Rf7 draw
7 Rf8 draw
8 Rg1 draw
9 Rh1 draw
10 K4b4 loss in 2 half-moves
11 K4b5 loss in 2 half-moves
12 K5b4 loss in 2 half-moves
13 K5b5 loss in 2 half-moves
14 Kb3 loss in 2 half-moves
15 Kb6 loss in 2 half-moves
16 Rb1 loss in 2 half-moves
17 Rc1 loss in 2 half-moves
18 Rd1 loss in 2 half-moves
19 Re1 loss in 2 half-moves
20 Rf3 loss in 2 half-moves
21 Rf4 loss in 2 half-moves
22 Rf5 loss in 2 half-moves