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EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Ra7 draw
3 Raa8 draw
4 Rb1 draw
5 Rf1 draw
6 Rg7 draw
7 Rga8 draw
8 Rh8 draw
9 Kf2 loss in 2 half-moves
10 Kg2 loss in 2 half-moves
11 Kh1 loss in 2 half-moves
12 Kh2 loss in 2 half-moves
13 Ra2 loss in 2 half-moves
14 Ra3 loss in 2 half-moves
15 Ra4 loss in 2 half-moves
16 Ra5 loss in 2 half-moves
17 Ra6 loss in 2 half-moves
18 Rc1 loss in 2 half-moves
19 Rc8 loss in 2 half-moves
20 Rd1 loss in 2 half-moves
21 Rd8 loss in 2 half-moves
22 Re1 loss in 2 half-moves
23 Re8 loss in 2 half-moves
24 Rf8 loss in 2 half-moves
25 Rg2 loss in 2 half-moves
26 Rg3 loss in 2 half-moves
27 Rg4 loss in 2 half-moves
28 Rg5 loss in 2 half-moves
29 Rg6 loss in 2 half-moves
30 Kf1 loss in 1 half-moves