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EGTB: win in 4 half-moves

# move score
1 Rb3 win in 3 half-moves
2 Ra7 draw
3 Rb1 draw
4 Rb8 draw
5 Rh1 draw
6 Rh2 draw
7 Rh3 draw
8 Rh8 draw
9 g1=N loss in 4 half-moves
10 g1=B loss in 2 half-moves
11 g1=K loss in 2 half-moves
12 g1=Q loss in 2 half-moves
13 g1=R loss in 2 half-moves
14 Rb2 loss in 2 half-moves
15 Rb4 loss in 2 half-moves
16 Rb5 loss in 2 half-moves
17 Rb6 loss in 2 half-moves
18 Rbc7 loss in 2 half-moves
19 Rbd7 loss in 2 half-moves
20 Rbe7 loss in 2 half-moves
21 Rbf7 loss in 2 half-moves
22 Rbg7 loss in 2 half-moves
23 Rh4 loss in 2 half-moves
24 Rh5 loss in 2 half-moves
25 Rh6 loss in 2 half-moves
26 Rhc7 loss in 2 half-moves
27 Rhd7 loss in 2 half-moves
28 Rhe7 loss in 2 half-moves
29 Rhf7 loss in 2 half-moves
30 Rhg7 loss in 2 half-moves