Scorpio is not well tested with "position fen xxxx" commands but "postion startpos moves e2e4 ... etc".
So use PGN opening books instead.
Edit[:/b] Infact your FEN seems to be wrong
Code: Select all
rnbqkb1r/1p1p1ppp/p3pn2/8/3NP3/3B4/PPP2PPP/RNBQK2R w KQkq - 2 0
Daniel