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EGTB: win in 4 half-moves

# move score
1 Rbf4 win in 3 half-moves
2 Ra4 draw
3 Rb7 draw
4 Rb8 draw
5 Rh6 draw
6 Kc1 loss in 2 half-moves
7 Kc2 loss in 2 half-moves
8 Kd2 loss in 2 half-moves
9 Ke1 loss in 2 half-moves
10 Ke2 loss in 2 half-moves
11 Rb1 loss in 2 half-moves
12 Rb2 loss in 2 half-moves
13 Rb3 loss in 2 half-moves
14 Rb5 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rbc4 loss in 2 half-moves
17 Rbd4 loss in 2 half-moves
18 Rbe4 loss in 2 half-moves
19 Rbg4 loss in 2 half-moves
20 Rh1 loss in 2 half-moves
21 Rh2 loss in 2 half-moves
22 Rh3 loss in 2 half-moves
23 Rh5 loss in 2 half-moves
24 Rh7 loss in 2 half-moves
25 Rh8 loss in 2 half-moves
26 Rhc4 loss in 2 half-moves
27 Rhd4 loss in 2 half-moves
28 Rhe4 loss in 2 half-moves
29 Rhf4 loss in 2 half-moves
30 Rhg4 loss in 2 half-moves