I don't know what I'm doing wrong, and I've been staring at this code all day. This is a "standard" Sudoku solver in Java, that takes a int[][] with 0's where the empty spaces are. Given I'm only p...

I'm currently working on my GUI for this Sudoku solver I'm making. I've managed to print out the board with no problems. However I'd like to know how I would go about to differentiate the 3x3 regio...

I've recently been working on a backtracking sudoku solving algorithm and currently I'd like to ask on how I should go about to change my solve() method from void to a boolean. I'm using a very si...

I'm having issues with my logic solving algorithm. It solves puzzles with a large number of hints very well, it just has issues with puzzles that have less than 45 clues. This is the algorithm for...

Based on the above coordinates in the above image, I'd like to be able to calculate which "square" as highlighted in red, the selected cell belongs to. I'm solving a sudoku puzzle, and I have ac...

I was reading a question posted here: Sudoku algorithm in C# And one of the solutions posted was this piece of code. public static bool IsValid(int[] values) { int flag = 0; foreach (int value ...

I'm creating a program that invents a new Sudoku puzzle. The way I initially planned on doing this is by inventing a new puzzle and then removing random numbers. However, the algorithm I use (seen ...

Introduction A valid Sudoku grid is filled with numbers 1 to 9, with no number occurring more than once in each sub-block of 9, row or column. Read this article for further details if you're...

What would be a smart data structure to use to represent a Sudoku puzzle? I.e. a 9X9 square where each "cell" contains either a number or a blank. Special considerations include: Ability to comp...

. OVERVIEW, SAMPLE Hello everyone, I have created a basic Sudoku solver that can solve most problems fairly quickly. I still have a lot of work ahead of me to make it solve even the hardest problem...

I recently wrote a sudoku solver in C to practice programming. After completing it I decided to write an equivalent program in Python for a comparison between the languages and more practice and th...

I wished I paid more attention to the math classes back in Uni. :) How do I implement this math formula for naked triples? Naked Triples Take three cells C = {c1, c2, c3} that share a unit U. Tak...

I am a building a console Sudoku Solver where the main objective is raw speed. I now have a ManagerThread that starts WorkerThreads to compute the neibhbors of each cell. So one WorkerThread is st...

I am reading in a file into an array. It is reading each char, the problem arises in that it also reads a newline in the text file. This is a sudoku board, here is my code for reading in the char:...

Can someone please help me understand this solution: Initialize 2D array with 81 empty grids (nx = 9, ny = 9) Fill in some empty grid with the known values Make an original copy of the array S...

I have a problem with some part of my lisp code. It is a sudoku table generator. It works fine until this part: (loop for e in entries do (if (and (not (member e sub)) (not (member e col))) (p...

A-star is used to find the shortest path between a startnode and an endnode in a graph. What algorithm is used to solve something were the target state isn't specifically known and we instead only ...

I'm trying to create a sudoku solver program in Java (maybe Python). I'm just wondering how I should go about structuring this... Do I create a class and make each box a object of that class...