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EGTB: win in 4 half-moves

# move score
1 Rf7 win in 3 half-moves
2 Ra2 draw
3 Rc2 draw
4 Rf3 draw
5 Rf4 draw
6 Rf5 draw
7 Rf6 draw
8 Rg2 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 Rb2 loss in 2 half-moves
15 Rd2 loss in 2 half-moves
16 Re2 loss in 2 half-moves
17 Rf1 loss in 2 half-moves
18 Rh2 loss in 2 half-moves