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EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Kc4 draw
3 Kc5 draw
4 Kc6 draw
5 Ra8 draw
6 Rc8 draw
7 Rg3 draw
8 Rg4 draw
9 Rg5 draw
10 Rg7 draw
11 Rh8 draw
12 Ka1 loss in 2 half-moves
13 Ka3 loss in 2 half-moves
14 Ka4 loss in 2 half-moves
15 Ka5 loss in 2 half-moves
16 Ka6 loss in 2 half-moves
17 Kb1 loss in 2 half-moves
18 Kb2 loss in 2 half-moves
19 Kb3 loss in 2 half-moves
20 Kb4 loss in 2 half-moves
21 Kb6 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 Rg1 loss in 2 half-moves
26 Rg2 loss in 2 half-moves
27 Rg6 loss in 2 half-moves