Improving your opening play
Can an amateur chess player contribute to opening knowledge worldwide ?
Of course that is possible !
(Technically former chess world champion Max Euwe was an amateur chess player, since he was a teacher at school, playing chess in his spare time, but also much lower rated players can contribute.)
Here's some examples from my own experience :
To give you an idea about the statistics with this variation :
A more obvious and nicer example is from a game I played today.
A few years ago I saw several players playing 1.c4 d5, and going for a Scandinavian defense alike setup for black.
I have played Scandinavian defense for years in otb and online chess with black (also with white) so I have a bit of a feel what is possible.
I believe that following a Scandinavian setup after 1.c4 d5 in combination with Qxd5 is somewhat worse than after 1.e4 d5 for black.
Let's have a look :
More difficult is this one :
Here's some more examples with 1.c4 d5 :