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EGTB: win in 4 half-moves

# move score
1 Rf2 win in 3 half-moves
2 Ra6 draw
3 Rc6 draw
4 Re6 draw
5 Rf1 draw
6 Rf3 draw
7 Rf4 draw
8 Rf5 draw
9 Rf7 draw
10 Kd1 loss in 2 half-moves
11 Kd2 loss in 2 half-moves
12 Ke2 loss in 2 half-moves
13 Kf1 loss in 2 half-moves
14 Kf2 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rd6 loss in 2 half-moves
17 Rf8 loss in 2 half-moves
18 Rg6 loss in 2 half-moves
19 Rh6 loss in 2 half-moves