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EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Rb6 win in 3 half-moves
3 Rb7 win in 3 half-moves
4 Kd3 draw
5 Kd4 draw
6 Kd5 draw
7 Ke3 draw
8 Ke5 draw
9 Kf6 draw
10 Kf7 draw
11 Kg7 draw
12 Kh6 draw
13 Kh7 draw
14 Ra1 draw
15 Rb8 draw
16 Rc1 draw
17 Rd1 draw
18 Re1 draw
19 Rf1 draw
20 Kef5 loss in 2 half-moves
21 Kf3 loss in 2 half-moves
22 Kf4 loss in 2 half-moves
23 Kg5 loss in 2 half-moves
24 Kgf5 loss in 2 half-moves
25 Kh5 loss in 2 half-moves
26 Rb2 loss in 2 half-moves
27 Rb3 loss in 2 half-moves
28 Rb5 loss in 2 half-moves
29 Rg1 loss in 2 half-moves
30 Rh1 loss in 2 half-moves