Engines

Which is stronger? Deep RYBKA 4 or KOMODO 8?

Both are old. Deep Rybka 4 is from 2011 and Komodo 8 is from 2014.

Komodo 8 64 bit 4 CPU was rated 3222. I couldn't find a rating for Deep Rybka 4.

Knowing only that that Komodo 8 is three years younger, it seems likely that Komodo 8 is much stronger.

Current computer engines are rated here:

http://www.computerchess.org.uk/ccrl/4040/rating_list_all.html

Yes, Rybka is on 9-10th place, excepting it was banned from oficial competitions due to code copy from Fruit engine.

Basically, the order is: Komodo 10, Komodo 9, Stockfish 7, Stockfish 6, Komodo 8 and so on. But you must always consider on how many CPUs engine run. Best is to set-up your own engine tournament.

Fritz 5 is the strongest!  LOL!

Don't know really, I'm always a pawn down whichever I choose.