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EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Re7 win in 3 half-moves
3 Ra7 draw
4 Rc7 draw
5 Rd7 draw
6 Rf7 draw
7 Rg1 draw
8 Rg2 draw
9 Rg3 draw
10 Rg4 draw
11 Kb4 loss in 2 half-moves
12 Kb5 loss in 2 half-moves
13 Kb6 loss in 2 half-moves
14 Kcc4 loss in 2 half-moves
15 Kcc6 loss in 2 half-moves
16 Kcd4 loss in 2 half-moves
17 Kcd6 loss in 2 half-moves
18 Kdc4 loss in 2 half-moves
19 Kdc6 loss in 2 half-moves
20 Kdd4 loss in 2 half-moves
21 Kdd6 loss in 2 half-moves
22 Ke4 loss in 2 half-moves
23 Ke5 loss in 2 half-moves
24 Ke6 loss in 2 half-moves
25 Rg5 loss in 2 half-moves
26 Rg6 loss in 2 half-moves
27 Rg8 loss in 2 half-moves
28 Rh7 loss in 2 half-moves