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EGTB: win in 4 half-moves

# move score
1 Ra8 win in 3 half-moves
2 Ka7 draw
3 Ka8 draw
4 Kb8 draw
5 Kc7 draw
6 Kc8 draw
7 Kd7 draw
8 Kd8 draw
9 Ke8 draw
10 Kf6 draw
11 Kf7 draw
12 Kf8 draw
13 Ra1 draw
14 Ra7 draw
15 Rh2 draw
16 Ka6 loss in 2 half-moves
17 Kb6 loss in 2 half-moves
18 Kc6 loss in 2 half-moves
19 Kd6 loss in 2 half-moves
20 Ke6 loss in 2 half-moves
21 Ra3 loss in 2 half-moves
22 Ra4 loss in 2 half-moves
23 Ra5 loss in 2 half-moves
24 Ra6 loss in 2 half-moves
25 Rb2 loss in 2 half-moves
26 Rc2 loss in 2 half-moves
27 Rd2 loss in 2 half-moves
28 Re2 loss in 2 half-moves
29 Rf2 loss in 2 half-moves
30 Rg2 loss in 2 half-moves