I'd like to make a suggestion. It would be great if we could be able to
take off a move, or to go back to a particular move in a game and
restart from there, if the opponent agrees. There might be something
around to do this, but I haven't seen it. I have two reasons for
1) You might be playing a good/equal opponent, and it be a really
good challenging game from both sides. And you or your opponent
make a really stupid foobar move. From that perspective, a win
doesn't mean so much, it would be a lot more stimulating game to let
that move pass. Not to be used too often in this situation though --
you got to take your lumps sometimes!
2) You're playing a young opponent, someone learning the game.
They have to take their lumps too, to learn the game. Sometimes
though it might be more instructive to let the game continue, less the
bad move, and let them continue on/develop that same strategy they
were using while it is still fresh.
There's a fine line here. I'm not suggesting something to go back
and erase every bad move or to be used indescriminately. That
cheapens the game, and maybe this site, IMO. Just something to be
used once in a great while. I'm not sure how that could be configured
or enforced though ...
Just a suggestion ...