This guide will show you how to solve sudoku puzzles in three steps. Sudoku puzzles can be intimidating and difficult to solve, but with a proper strategy, focusing on elimination, you can finish a Sudoku puzzle in mere minutes. The first step to solving Sudoku puzzles is to try and assign...
In this way, we can “think ahead” to take one Sudoku move and immediately use it to create additional number placements. This kind of “speed reading” of the Sudoku grid helps create faster and more efficient Sudoku puzzle solving. Over time, you’ll learn to develop your own sense of...
Sudoku's spreading faster than you can count to nine. But these seriously addictive, completely captivating puzzles can get fans a little gridlocked from time to time. They'll be able to get back in the game with the help of mathematician and bestselling author Robin Wilson--himself a sudok...
Don't know what to do with a Sudoku? Let academic Catherine Shaw guide you through the intricacies of the international puzzle craze, unlocking the logic behind 'magic squares' and helping you on the way to success. Far from being your average puzzle book, Shaw not only aims at initiating...
In this post we discuss how to write an R script to solve any Sudoku puzzle. There are some R packages to handle this, but in our case, we’ll write our own solution. For our purposes, we’ll assume the input Sudoku is a 9×9 grid. At the end result, eac
complexityMatchingproblemAssignmentproblemWe prove the NP-hardness of a consistency checking problem that arises in certain elimination strategies for solving Sudoku-type problems.AdrianaF.GaborandGerhardJ.WoegingerEBSCO_bspOperations Research Letters
When your aim is to prove that the Sudoku has a unique solution, finding a BUG means that you can stop trying. For you, there is no other use for the BUG pattern. When you trust the maker of the puzzle, who has guaranteed that it has a unique solution, you can use techniques that...
Introduce sudoku solving technique : The ALS-XZ rule is a solving technique that uses two Almost Locked Sets. It is the easiest of the ALS techniques, but still a technique that is rarely used by the average Sudoku player. Make sure you understand the co
This program doesn't just solve Sudoku and Killer Sudoku puzzles - it teachesyouhow to solve them. From complete beginner to expert, the program will teach you new techniques for solving puzzles at every difficulty level. Click on the image for more screenshots ...
You can generate a random sudoku solution board where all numbers are filled in and then remove some of them to create the puzzle. This will ensure that the puzzle always has a solution. Making sure that it has exactly one solution is a bit more challenging (hint: you must leave at leas...