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EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Ra8 draw
3 Rc8 draw
4 Rd8 draw
5 Rh1 draw
6 Rh2 draw
7 Rh3 draw
8 Rh4 draw
9 Kb3 loss in 2 half-moves
10 Kb4 loss in 2 half-moves
11 Kb5 loss in 2 half-moves
12 Kcc3 loss in 2 half-moves
13 Kcc5 loss in 2 half-moves
14 Kcd3 loss in 2 half-moves
15 Kcd5 loss in 2 half-moves
16 Kdc3 loss in 2 half-moves
17 Kdc5 loss in 2 half-moves
18 Kdd3 loss in 2 half-moves
19 Kdd5 loss in 2 half-moves
20 Ke3 loss in 2 half-moves
21 Ke4 loss in 2 half-moves
22 Ke5 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 Rh5 loss in 2 half-moves
27 Rh6 loss in 2 half-moves
28 Rh7 loss in 2 half-moves