Now, let’s apply the model to the question: What do I play against 1.d4? I would fill the four quadrants as follows, omitting openings that are unimportant or about which I am not 100% [...]
In my opinion, it is highly recommendable to take a methodical approach to building the opening repertoire. Being aimless can lead to the following problems: 1. You learn bad openings What is [...]