How to crack a yahoo passwd

Hi,
I am new to this group.I am very impressed from the solutions provided by the members for each query which is being posted here.Can anyone tell me how to crack a yahoo password?I dont think its a tough job but still i am not able to find a permanent solution for it.

This is a networking SECURITY forum. I suggest you go read the first page again before you get negged to death. Oh, enjoy the reds to start you off...