Quitting

Just wondering how people here feel about players who quit the game the moment they lose a piece, or make a mistake. I myself, enjoy the fight and don't intend to quit the first time I get hit. I like hitting back instead of running away.

One should never resign against an amateur. They may not know how to finish you off.

Depends. You can recover from mistakes, fight your way to a draw. However, it is considered rude to keep playing an obviously lost position. The question is, of course, when do you decide it is hopeless?

Define amateur .  

It's rude to play on in a hopeless position.  That's time you could be spending on a post-mortem or eating lunch.  Phave has the right idea.  

Whenever I play in a position where it looks like I'm hopelessly lost, I would never resign if it was a real serious game as I could still hope for touchmove in OTB chess or accidental piece drop. I don't believe that it's rude to do so, as it can make the game more exciting.

It's not rude. You play until you can no longer make them work. I would even do it against GMs, cause I believe I am their equals. That's what separates the wheat from the chaff. Outlook. All the GMs do it against each other. It's their tenacity which allows for the most beautiful games. An example is this beautiful game I played at the Manhattan open where I won with perfect technique.

Believe it or not, by the 16th move, black is hopelessly lost. That doesn't mean he should give up. I still had to find all the right ideas to score that passed pawn home and win that king and pawn ending. The game is beautiful BECAUSE of the defense, not in spite of it.

Great game Adam!