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EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Ra4 draw
3 Ra5 draw
4 Ra8 draw
5 Raa7 draw
6 Rb3 draw
7 Rb4 draw
8 Rb8 draw
9 Rbb1 draw
10 Rc7 draw
11 Rd7 draw
12 Re7 draw
13 Rh7 draw
14 Nc2 loss in 2 half-moves
15 Nd3 loss in 2 half-moves
16 Nf3 loss in 2 half-moves
17 Ng2 loss in 2 half-moves
18 Ra2 loss in 2 half-moves
19 Ra3 loss in 2 half-moves
20 Ra6 loss in 2 half-moves
21 Rab1 loss in 2 half-moves
22 Rb5 loss in 2 half-moves
23 Rb6 loss in 2 half-moves
24 Rba7 loss in 2 half-moves
25 Rc1 loss in 2 half-moves
26 Rd1 loss in 2 half-moves
27 Rf7 loss in 2 half-moves
28 Rg7 loss in 2 half-moves