CS

.....project ideas?

Requirements:

[list]
Something useful that can be later sold. Games are allowed but discouraged
Something that shows a lot of OOp implementation
Something hard to program. (I'm the best in class. I need to win the honors)
[/list]

I was originally going to do a OCR reader for hard written documents. Upon finishing the first research session I was aware the project had too high a chance of failure and too small a time frame to be completed successfully. I downgraded it to a simple captcha reader but again it was probably bound to fail.
I am now stuck without any ideas.

Can please /prog/ provide some ideas?

:|

How boring!

I want something fun to program. Something that takes more time writing the pseudo code rather than implementing it in a language.

I was going to go for a chess engine but that's already implemented a billion times and given most engines will be superior, my project won't make any good impressions.

Anything else?