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EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 K3b3 draw
3 K3b4 draw
4 K4b3 draw
5 K4b4 draw
6 Kb5 draw
7 Kc5 draw
8 Ra8 draw
9 Rc8 draw
10 Rh1 draw
11 Rh5 draw
12 Rh6 draw
13 Rh7 draw
14 K3d3 loss in 2 half-moves
15 K3d4 loss in 2 half-moves
16 K4d3 loss in 2 half-moves
17 K4d4 loss in 2 half-moves
18 Kb2 loss in 2 half-moves
19 Kc2 loss in 2 half-moves
20 Kd2 loss in 2 half-moves
21 Kd5 loss in 2 half-moves
22 Rd8 loss in 2 half-moves
23 Re8 loss in 2 half-moves
24 Rf8 loss in 2 half-moves
25 Rg8 loss in 2 half-moves
26 Rh2 loss in 2 half-moves
27 Rh3 loss in 2 half-moves
28 Rh4 loss in 2 half-moves