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EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Kg4 draw
3 Ra2 draw
4 Ra3 draw
5 Rb1 draw
6 Rb4 draw
7 Rb5 draw
8 Rbb2 draw
9 Rf2 draw
10 Rf3 draw
11 Rg1 draw
12 Rgb2 draw
13 Rh2 draw
14 Kf2 loss in 2 half-moves
15 Kf3 loss in 2 half-moves
16 Kf4 loss in 2 half-moves
17 Kh2 loss in 2 half-moves
18 Kh3 loss in 2 half-moves
19 Kh4 loss in 2 half-moves
20 Rb7 loss in 2 half-moves
21 Rb8 loss in 2 half-moves
22 Rc2 loss in 2 half-moves
23 Rc3 loss in 2 half-moves
24 Rd2 loss in 2 half-moves
25 Rd3 loss in 2 half-moves
26 Re2 loss in 2 half-moves
27 Re3 loss in 2 half-moves