Tips for solving sudoku puzzles hard8/31/2023 ![]() Or you have vast areas of untouched space here that you don’t know. And then the problem we run into is that there, there really isn’t anything else to work with. So now again, everything goes along fine until we get to this point. For that matter, if you’re trying to solve this level of puzzle on a regular basis, even though it just says hard and it really should be rated a little higher, you’re probably ready for the graduate level techniques. Now you are not a graduate member Algie, but I’m going to show you one of those graduate level techniques that you can use.Īnd I’ll hint at the other one for those who are graduate level members, you can get in there and see if you can find the other one. Same numbers are filled in my pencil marking looks a little bit different than yours, but nonetheless there it is. Here’s my stuck point with my pencil marking. And just to relieve you of any concern, I got to the exact same stuck point that you did. I certainly didn’t find it, but there are at least two different graduate level techniques that you can use. And actually Algie, this is a graduate level puzzle, in my opinion. And I completely understand why, again, this is this is not just hard. There’s, you know, you figure out a few things, narrow some spaces down, but Algie’s tried I could see tried some three corners and things like that and not been able to solve it. ![]() Other than that, Algie’s done a lot of think outside the box to no avail, I mean, made some progress. A lot of progress has been made down in this box is a eight and nine, and there’s a few other numbers filled in. It’s probably like in the “very hard” category. I don’t know which exact book this comes from, but the interesting thing is that this is rated hard. I’m familiar with, I’ve seen those before, so it’s probably a series of them. This is from I think it’s a book of puzzles called Grab and Go. And today I’m bringing you a puzzle that Algie Seat is stuck on. Grab a pencil, and print the Hard Sudoku Sample (page 3) of the Sudoku Puzzle Samples document so you can follow along and fill in the puzzle as we go.This video was posted on Oct 6th during Sudoku Week 2020. On this page, we will cover more situations using the Ghosting, RC Counting, Tagging, and Line Checking techniques we learned in Part 2.īelow is the sample puzzle we will be solving. ![]() ![]() Welcome to Part 3, the third and final part of my Sudoku Instructions. When you are ready to put your Sudoku skills to the test, print out some of the 100 free Sudoku puzzles on this site or play Sudoku free online. You'll need to understand those methods to be able to solve Medium, Hard, Very Hard, and "insane" Sudoku puzzles. In Part 2, Kevin uses a Medium Sudoku sample puzzle to introduce the techniques of Ghosting, RC Counting, Tagging, and Line Checking. There Kevin explains the rules of Sudoku and uses a sample Easy puzzle to illustrate the two basic techniques you need to use when solving Sudoku puzzles of any difficulty, namely: "Check Each Number 1 Through 9" and "Check for One Missing Number in Each Row, Column, and Quadrant". Part 1 starts Sudoku instruction from scratch. Unless you are already an expert Sudoku player, you may want to work through the Sudoku instructions in Part 1 and Part 2 before tackling this page. This page goes further in depth with the advanced Sudoku techniques of Ghosting, RC Counting, Tagging, and Line Checking. ![]()
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