So i feel like posting and didn't know what to post. My main concerns at the moment are in my opening repertoire and so i thought i'd explain my analysis when starting.
Firstly, I was watching a lot of chess.com tv coverage of the us championships and norway chess championship and saw d4 as the most common 1st move by white. So if the pro's are doing that then i naturally assumed thats what i should do.
So i start my repertoire with 1.d4
So what to do now? I found a great opening explorer to study at http://www.365chess.com/opening.php so looked there for what to do next.
I could see why d4 was so popular, although e4 seems to have a slight edge in win% for white, the drop vs e4 in win% for black more than compensates for it. I also noticed that the most common second move for white was 2. c4. So clearly my next step was to study when NOT to play 2.c4. I firstly narrowed my repertoire the the more common replies to 1.d4 then looked into those.
Nf6, d5, e6, f5, g6, d6 and c5 were the more prominent replies, with a large gap down to anything else. Of these the only move where 2. c4 is a statistically unwise reply is 1. c5 (arguably 1. d6 or 1.f5 also but it's played often enough for me to allow that to slip, for now at least). So my second move is c4 unless black replies to my 1. d4 with 1.c5 (known as the old Benoni defence) in which case i should push my d pawn to d5.
Okay that's all i'll go into for now, next post i'll go more into the Old Benoni (the exception the the 2. c4 rule in common openings to 1.d4) and then in future posts i'll look more into the 2. c4 openings.