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EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Kd7 draw
3 Kd8 draw
4 Kee8 draw
5 Kef8 draw
6 Kfe8 draw
7 Kff8 draw
8 Kg6 draw
9 Kg7 draw
10 Kg8 draw
11 Ra1 draw
12 Rb2 draw
13 Rb7 draw
14 Rh1 draw
15 Kd6 loss in 2 half-moves
16 Kee6 loss in 2 half-moves
17 Kef6 loss in 2 half-moves
18 Kfe6 loss in 2 half-moves
19 Kff6 loss in 2 half-moves
20 Rb3 loss in 2 half-moves
21 Rb4 loss in 2 half-moves
22 Rb5 loss in 2 half-moves
23 Rb6 loss in 2 half-moves
24 Rc1 loss in 2 half-moves
25 Rd1 loss in 2 half-moves
26 Re1 loss in 2 half-moves
27 Rf1 loss in 2 half-moves
28 Rg1 loss in 2 half-moves