![]() ![]() ![]() Proceed along to sweep the "chimneys" and you will see that R8C9 must be 7, as must R7C6. Clearly it is R2C3, because there is already a 7 in C1. Which candidates occur in two of the boxes? Where might they be in the third? Ignore that, it will come out in the wash. Note that 1 is the only possibility in R7C1. Step 1: Sweep the floors and the chimneys In the margin of the puzzle, write this down: What I am going to describe is a very effective recipe I have developed over the past 15 years or so. So, for example, B1 contains the cells common in R123C123. Together, rows and columns are called “Lines”. Ignore the possibilities (pencil marks) for now. Here is the puzzle with all the possibilities for the unsolved cells. Play this puzzle online at the Daily Sudoku site (These books are a great source of puzzles for beginners.) This post covers “the basics”, which is a set of single-digit solving techniques that will enable you to solve virtually any newspaper puzzle published in the USA, or nearly every puzzle in the books they sell at your local dollar store. (For no reason other than that is where my friend is, and it is the newspaper he has in hand.) As an example, we have the Sunday puzzle from the Arizona Republican. That’s not how I solve puzzles, so I decided to write my methodology down. I looked around, and discovered that most “How to solve” tutorials are built around a hierarchy of solution tactics. Posted: Mon 7:35 pm Post subject: Solving Sudoku: The AP Classīased on feedback, I intend to revise this part - Keith May 17, 2018Ī friend asked for advice on solving newspaper Sudoku puzzles. It does not help that many published puzzles are screened, based on the techniques required to solve them. What I will say is a little unusual, for it does not follow the established path. That would be me and perhaps two of my friends. This will enable you to solve virtually every newspaper puzzle published in the USA.Īt the end of this, you should be able to solve any puzzle that would be of interest to an armchair, pencil and paper, human solver. IMO, that does not make an efficient or effective way to approach most puzzles.ġ. This thread is about systematic and effective ways to solve Sudoku.Ī beginner friend asked me for advice, and I realized that most tutorials on how to solve puzzles are structured around applying solution tricks sequentially, in the order of their perceived difficulty. Posted: Mon 7:34 pm Post subject: How to solve Sudoku Profile Log in to check your private messages Log in :: View topic - How to solve SudokuįAQ Search Memberlist Usergroups Register
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