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EGTB: win in 4 half-moves

# move score
1 Nb3 win in 3 half-moves
2 Ra6 draw
3 Rb6 draw
4 Rc7 draw
5 Rc8 draw
6 Rf6 draw
7 Rh6 draw
8 Na4 loss in 2 half-moves
9 Na6 loss in 2 half-moves
10 Nb7 loss in 2 half-moves
11 Nd3 loss in 2 half-moves
12 Nd7 loss in 2 half-moves
13 Ne4 loss in 2 half-moves
14 Ne6 loss in 2 half-moves
15 Rd6 loss in 2 half-moves
16 Re6 loss in 2 half-moves
17 Rg6 loss in 2 half-moves