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EGTB: win in 4 half-moves

# move score
1 Rb3 win in 3 half-moves
2 g1=K draw
3 g1=N draw
4 Ra1 draw
5 Ra2 draw
6 Ra3 draw
7 Rab7 draw
8 Rb1 draw
9 Rb2 draw
10 Rba8 draw
11 Rc7 draw
12 Rc8 draw
13 Rg7 draw
14 Raa8 loss in 4 half-moves
15 g1=B loss in 2 half-moves
16 g1=Q loss in 2 half-moves
17 g1=R loss in 2 half-moves
18 Ra4 loss in 2 half-moves
19 Ra5 loss in 2 half-moves
20 Ra6 loss in 2 half-moves
21 Rb4 loss in 2 half-moves
22 Rb5 loss in 2 half-moves
23 Rb6 loss in 2 half-moves
24 Rbb7 loss in 2 half-moves
25 Rd7 loss in 2 half-moves
26 Rd8 loss in 2 half-moves
27 Re7 loss in 2 half-moves
28 Re8 loss in 2 half-moves
29 Rf7 loss in 2 half-moves
30 Rf8 loss in 2 half-moves
31 Rg8 loss in 2 half-moves
32 Rh7 loss in 2 half-moves
33 Rh8 loss in 2 half-moves