You should really increase your common sense level, its not that hard.
Guide for people with common sense levels lower than 20:
1. Go here http://www.chess.com/download/view/houdini15
2. http://www.triplehappy.com/ Download Tarrasch Chess Engine
3. Install Tarrasch chess engine
4. Open tarrasch chess engine
5. Go to Options --> Engine--> find where you downloaded Houdini 1.5.exe and click that
6. Put hash to 32
7. Press ok



Hey!
I've played chess competitively for over a year now, but now that I'm at the Class B/ Class A level, I think an engine would be very useful to help my preparation, etc. How exactly do I go about getting one? I heard something about having to buy both an engine and some sort of thing to display it (called a "gui" or something?), but don't know much about it. Where do you suggest I get the interface and the engine from? Also, which engine do you guys recommend?
Thanks!