When you're ahead on the clock play defensively. Make your opponent work the attack. It's easier to analyze an attack and put a hole in it then it is to find a hole in the defense and coordinate the pieces, i.e. an attack takes time to think about. Touch move is a rule. Exceptions are courtesies.
Speed chess is for children.
Watch out for guys who have done time. Another scam is to start losing and try to double the bet. When the mark doubles, you get serious. Matt Gaffney, who constructs Slate 's weekly crossword puzzle, earned his national master's title from the U.S. Chess Federation in 1991. Illustrations by Nina Frenkel.