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EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Ba8 draw
3 Bb7 draw
4 Bc6 draw
5 Bd5 draw
6 Be4 draw
7 Bf3 draw
8 Nb6 draw
9 Nc5 draw
10 Ra8 draw
11 Rc8 draw
12 Re8 draw
13 Bg2 loss in 2 half-moves
14 Nb8 loss in 2 half-moves
15 Ne5 loss in 2 half-moves
16 Nf6 loss in 2 half-moves
17 Nf8 loss in 2 half-moves
18 Rf8 loss in 2 half-moves
19 Rg8 loss in 2 half-moves
20 Rh8 loss in 2 half-moves