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EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Rh1 win in 3 half-moves
3 Ra6 draw
4 Ra7 draw
5 Rb5 draw
6 Rb8 draw
7 Rbb6 draw
8 Rh5 draw
9 Rh8 draw
10 Rhh7 draw
11 Rbh7 loss in 4 half-moves
12 Rhb6 loss in 4 half-moves
13 Rb2 loss in 2 half-moves
14 Rb3 loss in 2 half-moves
15 Rb4 loss in 2 half-moves
16 Rc6 loss in 2 half-moves
17 Rc7 loss in 2 half-moves
18 Rd6 loss in 2 half-moves
19 Rd7 loss in 2 half-moves
20 Re6 loss in 2 half-moves
21 Re7 loss in 2 half-moves
22 Rf6 loss in 2 half-moves
23 Rf7 loss in 2 half-moves
24 Rg6 loss in 2 half-moves
25 Rg7 loss in 2 half-moves
26 Rh2 loss in 2 half-moves
27 Rh3 loss in 2 half-moves
28 Rh4 loss in 2 half-moves