You couldn’t have picked a better time to ask for more money. According to a recent survey by human resources firm Buck Consultants, 76 percent of businesses that imposed salary restrictions during the last 18 months have now lifted their freezes. But that doesn’t mean everybody is going to automatically get a boost. If you really want one, you need to be the most cunning deviant in your office. Asking for a raise is like chess, except the loser doesn’t earn enough to pay a mortgage. Here are a few suggestions.