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EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Rb3 win in 3 half-moves
3 g1=B draw
4 g1=K draw
5 g1=N draw
6 g1=R draw
7 Ra2 draw
8 Ra3 draw
9 Ra5 draw
10 Raa1 draw
11 Rab4 draw
12 Rb5 draw
13 Rba1 draw
14 Rg1 draw
15 Rg4 draw
16 Rbb4 loss in 4 half-moves
17 g1=Q loss in 2 half-moves
18 Ra6 loss in 2 half-moves
19 Ra7 loss in 2 half-moves
20 Ra8 loss in 2 half-moves
21 Rb6 loss in 2 half-moves
22 Rb7 loss in 2 half-moves
23 Rb8 loss in 2 half-moves
24 Rc1 loss in 2 half-moves
25 Rc4 loss in 2 half-moves
26 Rd1 loss in 2 half-moves
27 Rd4 loss in 2 half-moves
28 Re1 loss in 2 half-moves
29 Re4 loss in 2 half-moves
30 Rf1 loss in 2 half-moves
31 Rf4 loss in 2 half-moves
32 Rh1 loss in 2 half-moves
33 Rh4 loss in 2 half-moves