Czuch Chuckers: Sorry, not really "cheating" - but "taking advantage" or "bad sportsmanship" would be beter words I guess - and I have seen plently of people who are not afraid to do that.
grenv: Chess is not really a good comparason since there is not different levels that you can win by. That is if you got more points by capturing a queen first or something like that. It is either win or lose.