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...
Here is a real example and explanation of solving Sudoku puzzles by “thinking ahead.” In the screenshot shown below, the bottom left square has only two empty spaces, and we know based on the numbers that are already visible that the two remaining numbers are 6 and 9. Looking to the ...
Another way to solve Sudoku puzzles from “multiple directions” is to focus on one blank space where multiple numbers converge and can be eliminated. For example, in the following screenshot, the far right column (outlined in orange) has four blank spaces. The numbers 1, 2, 3, 5 and 7...
There must be a link between each pair of nodes in a Nice Loop. For two nodes to be linked, they must be peers. The type of link plays an important role. A strong link can be used for strong or weak inference, but a weak link can only be used for weak inference. Hence, there ...
Koch, T.: Rapid mathematical programming or how to solve sudoku puzzles in a few seconds. In: Haasis, H.-D., Kopfer, H., Schönberger, J. (eds.) Operations Research Proceedings 2005, pp. 21–26 (2006)Koch, T.: Rapid mathematical programming or how to solve sudoku puzzles in a ...
It is easy to see that it would be impossible for all blue cells to contain digit 1. There are 2 blue cells in row 1, box 2 and column 5. Because some blue cells are invalid, we can declare all blue cells unsuitable for digit 1. ...
t put any small numbers in. One of the powerful features of Sudoku solving is keeping small numbers to 2 cells. The advantage is that if you solve one number then you know the other number. If there are more choices once you have solved one cell, it may become more difficult to know...
Sudoku puzzles aren’t always as easy as the demonstration above, so here are few tips to help you deal with more difficult puzzles: 1) Use a pencil when solving Sudoku puzzles If you are completing a Sudoku puzzle that is on paper, use a pencil. That way, you can rub out any mistak...
thinking.Puzzlesrangeallthewayfromeasyforthe beginnertoextremelydifficultforthemoreadvanced puzzler.Sudokuiseasytotakewithyouwhereveryou gosothatyoucanindulgeinalittlebitofnumber guessingwheneveryouhaveafewspareminutes. Sudokuiseasytolearnandunderstand.Themainaimof ...
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 ...