So this is for this lesson, this is where I got stuck, if you will. So his question is “what is the first thing I do when I start this puzzle?” And he’s asking, “do I begin filling in as many spaces as I can, or do I begin searching for the spaces that only two numbers can go into?” So if you watch the videos, this is my stuck point that he sent back here to me to, to consider. And the cake that we’re trying to bake is the technique that we’re trying to apply in this case, a 3-corners method. So the ingredients in this situation are all of our spaces that can only be two numbers. You’ve got to go collect all the ingredients before you bake the cake or else you won’t be able to bake the cake. It’s kind of like, you want to bake a cake, but you don’t have all the ingredients. Because if we don’t, we can’t find the pattern that we’re looking for. Only two numbers can go in this space and this space here, only two numbers can go in this.Īnd there’s many other examples on this puzzle, but it’s really, really critical that we find those spaces. This space here, only two numbers can go in this space. So like this space here that six and nine, only two numbers, you know, all of these spaces were only two numbers can go down here. You know, many, I would say generally speaking, many of the Junior, Senior, and all of the graduate level lessons, it’s really important that we find these spaces where only two numbers can go. It’s really critical on these three corners methods and actually on most of the graduate level lessons. So let me give you a little bit of a background first before I actually get into the question so that you understand the context where he’s coming from. It’s about how do we get to the point where we can apply the technique. And it’s not specifically about the technique. This is on the Club-exclusive 3-box 3-corners method. So this is Fred Hall’s third question that he asks, and he’s asking it regarding the Senior 405 lesson number one puzzle here. This video was posted on Oct 7th during Sudoku Week 2020.
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