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EGTB: win in 4 half-moves

# move score
1 Rbb4 win in 3 half-moves
2 Ra1 draw
3 Ra4 draw
4 Rb2 draw
5 Rb3 draw
6 Rf2 draw
7 Rf3 draw
8 Rf5 draw
9 Rff1 draw
10 Rh1 draw
11 Rh4 draw
12 Rfb4 loss in 4 half-moves
13 Rb5 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rb7 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Rbf1 loss in 2 half-moves
18 Rc1 loss in 2 half-moves
19 Rc4 loss in 2 half-moves
20 Rd1 loss in 2 half-moves
21 Rd4 loss in 2 half-moves
22 Re1 loss in 2 half-moves
23 Re4 loss in 2 half-moves
24 Rf6 loss in 2 half-moves
25 Rf7 loss in 2 half-moves
26 Rf8 loss in 2 half-moves
27 Rg1 loss in 2 half-moves
28 Rg4 loss in 2 half-moves