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EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Bf8 draw
3 Rb5 draw
4 Rb6 draw
5 Rb8 draw
6 Rd1 draw
7 Re1 draw
8 Rf1 draw
9 Ba3 loss in 2 half-moves
10 Bb4 loss in 2 half-moves
11 Bb8 loss in 2 half-moves
12 Bc5 loss in 2 half-moves
13 Bc7 loss in 2 half-moves
14 Be5 loss in 2 half-moves
15 Be7 loss in 2 half-moves
16 Bf4 loss in 2 half-moves
17 Bg3 loss in 2 half-moves
18 Bh2 loss in 2 half-moves
19 Na7 loss in 2 half-moves
20 Nb6 loss in 2 half-moves
21 Ne7 loss in 2 half-moves
22 Ra1 loss in 2 half-moves
23 Rb2 loss in 2 half-moves
24 Rb3 loss in 2 half-moves
25 Rb7 loss in 2 half-moves
26 Rc1 loss in 2 half-moves
27 Rg1 loss in 2 half-moves
28 Rh1 loss in 2 half-moves