Contempt=6 (not default) very good for particular openings: Scandinavian Defense, Benoni, Rubinstein and Tromposky...
Extended options: * For Deep Analysis - Correspondence Mode - Clean search - Null Move -Cerebellum book (only cpp version) * Advanced features to experiment with -Razoring -Futility -Pruning -Probcut -Saving Hash capability: *NeverClearHash *HashFile *SaveHashtoFile *LoadHashfromFile
Thanks to Marco Zerbinati, ChessMan3, Ivan Ivic, Daniel Jose and the rest of Stockfish community