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EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Kb4 draw
3 Kc4 draw
4 Kd4 draw
5 Ra7 draw
6 Rb1 draw
7 Rb3 draw
8 Rb4 draw
9 Rb5 draw
10 Rb6 draw
11 Rd7 draw
12 Re7 draw
13 Rf7 draw
14 Kb5 loss in 2 half-moves
15 Kb6 loss in 2 half-moves
16 Kc6 loss in 2 half-moves
17 Kd5 loss in 2 half-moves
18 Kd6 loss in 2 half-moves
19 Kf1 loss in 2 half-moves
20 Kf2 loss in 2 half-moves
21 Kf3 loss in 2 half-moves
22 Kg1 loss in 2 half-moves
23 Kg3 loss in 2 half-moves
24 Kh1 loss in 2 half-moves
25 Kh2 loss in 2 half-moves
26 Kh3 loss in 2 half-moves
27 Rb8 loss in 2 half-moves
28 Rc7 loss in 2 half-moves
29 Rg7 loss in 2 half-moves
30 Rh7 loss in 2 half-moves