A great way to improve your chess is to try inventing your own lines. Unlike the ‘monkey see, monkey do’ approach to openings that many adopt, trying to find new ideas engages and helps develop chess skills. You need to understand typical plans and then find ways to implement them on the board.
Is it necessary to find something completely new in order to be inventive? No. You can take an established line and try to come up with some new wrinkles later on, say around move 10 or 12. Of course it helps if the lines you investigate are not the most fashionable ones as these can get picked apart rather exhaustively.
One of my own efforts in this field was the development of 2.d3 against the Sicilian (1.e4 c5). I’d seen an article by Lawrence Day on ‘big clamp’ formations and wanted to formalize his strategic concepts to create an anti-Sicilian repertoire. It worked quite well and I subsequently made a video on it for Foxy Openings which can now be found at my Tiger Chess site.
Here’s some more about the 2.d3 video which you can add to your Tiger Chess membership whether you’re a full or video member: