Hmm. I can't imagine what you mean. What kinds of moves are unethical? Do some players keep taking your queen? Using en passant?
Do they play for a stalemate? A lot of people think that a forced stalemate can be a thing of beauty.
I don't think that there are really any unethical chess moves.
Please can someone tell me if there is such a thing as chess ethics from the kind of game tactics stand point? Because some countries that I won't name, but everybody knows which they are, have players that don't play a fair game.
Is everything allowed in chess?