# Is there an app that solves Sudoku?

## Is there an app that solves Sudoku?

OkayCode Sudoku Solver OkayCode makes one of the most popular sudoku solvers for Android. It’s a super basic app. It solves puzzles in the traditional 9×9 grid like you see in the newspapers. This is a good one for a lot of people because it works with the most popular version of sudoku.

## Is 9X9 Sudoku NP complete?

Sudoku is NP-complete when generalized to a n × n grid however a standard 9 × 9 Sudoku is not NP- complete.

Can you cheat at Sudoku?

Google’s Goggles app for Android will now solve your Sudoku puzzle in less than 30 seconds. Sure, it’s a pointless application of the tech, but it looks really cool scanning the numbers and solving the puzzle and that’s the whole point. …

What’s the trick to Sudoku?

There are more than a few techniques to solve a Sudoku puzzle, but per Conceptis Puzzles, the easiest way to a Sudoku solution is to, “Scan rows and columns within each triple-box area, eliminating numbers or squares and finding situations where only a single number can fit into a single square.” If you’re looking to …

### What are the best strategies to solve a Sudoku?

you’ll have a square grid of 9 large squares. Inside each of those larger squares will be 9 smaller squares.

• Line up the rows and columns. One basic rule of the game is every column and row must have all of the numbers from 1 to 9. That means that within a
• you’ll end up with a mess of a board.
• ### What is the key to solving a Sudoku puzzle?

The obvious way to solve a sudoku puzzle is to find the right numbers to go in the squares. However the best way to start is the other way round – finding the right squares to hold the numbers. This uses a technique called ‘crosshatching’, which only takes a couple of minutes to learn.

How many different 9×9 Sudokus are there?

Therefore there are at most 9x9x9 ways of filling in the first three cells. We can continue the argument for all other cells, observing that there are at most 9 81 ways of filling in the first n cells. There are 9×9 cells on our Sudoku grid, thus no more than 9 81 different complete Sudoku grids of size 9×9.

What are the rules of Sudoku?

The Rules of Sudoku. The classic Sudoku game involves a grid of 81 squares. The grid is divided into nine blocks, each containing nine squares. The rules of the game are simple: each of the nine blocks has to contain all the numbers 1-9 within its squares. Each number can only appear once in a row, column or box.