DO NOT USE ENGINES
I need to write a detailed post about it but as I don't have the time right now, I simply wanted to remind everybody that consulting engines in ongoing online chess games is considered cheating and not allowed on Chess.com.
In the past 48 hours, accounts of three Chess.com University students got closed for engine usage. I was not happy to see that. This is becoming a serious problem on the site.
If you think someone is using an engine against you, let monitor know:
http://www.chess.com/members/view/monitor