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EGTB: win in 4 half-moves

# move score
1 Ra8 win in 3 half-moves
2 Kb6 draw
3 Kb7 draw
4 Kb8 draw
5 Kc8 draw
6 Kcc6 draw
7 Kcd7 draw
8 Kd8 draw
9 Kdc6 draw
10 Kdd7 draw
11 Ke7 draw
12 Ra6 draw
13 Ra7 draw
14 Rb1 draw
15 Rf1 draw
16 Kc5 loss in 2 half-moves
17 Kd5 loss in 2 half-moves
18 Ke5 loss in 2 half-moves
19 Ke6 loss in 2 half-moves
20 Ra2 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 Rc1 loss in 2 half-moves
25 Rd1 loss in 2 half-moves
26 Re1 loss in 2 half-moves
27 Rg1 loss in 2 half-moves
28 Rh1 loss in 2 half-moves