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EGTB: win in 4 half-moves

# move score
1 Rf8 win in 3 half-moves
2 Kd5 draw
3 Kd6 draw
4 Kd7 draw
5 Ke5 draw
6 Ke7 draw
7 Kf7 draw
8 Ra8 draw
9 Rb1 draw
10 Rb6 draw
11 Rb7 draw
12 Rc8 draw
13 Rd8 draw
14 Re8 draw
15 Kf5 loss in 2 half-moves
16 Kf6 loss in 2 half-moves
17 Rb2 loss in 2 half-moves
18 Rb3 loss in 2 half-moves
19 Rb4 loss in 2 half-moves
20 Rb5 loss in 2 half-moves
21 Rg8 loss in 2 half-moves
22 Rh8 loss in 2 half-moves