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EGTB: win in 4 half-moves

# move score
1 Rf7 win in 3 half-moves
2 Rc3 draw
3 Rd3 draw
4 Re3 draw
5 Rf2 draw
6 Rf4 draw
7 Rf5 draw
8 Rf6 draw
9 Ke7 loss in 2 half-moves
10 Ke8 loss in 2 half-moves
11 Kf7 loss in 2 half-moves
12 Kg7 loss in 2 half-moves
13 Kg8 loss in 2 half-moves
14 Ra3 loss in 2 half-moves
15 Rb3 loss in 2 half-moves
16 Rf1 loss in 2 half-moves
17 Rg3 loss in 2 half-moves
18 Rh3 loss in 2 half-moves