Sudoku Solver Python Code

A backtracking program in python to solve sudoku problem a utility function to print the grid.

Sudoku solver python code. Code a recursive program in c to solve sudoku problem. In part 1 of this sudoku solver with python tutorial i explain how we are going to go about solving the problem and discuss the algorithm known as backtracking backtracking is simply reverting back to the previous step or solution as soon as we determine that our current solution cannot be continued into a complete one. Good job this wasn t written in lisp as reading the title might be quite a challenge patrycja. In this post i will introduce a sudoku solving algorithm using backtracking if you don t know about backtracking then just brush through the previous post.

This puzzle solving ai like many artificial intelligence tasks doesn t need. The sudokus tested against your function will be insane and can have multiple solutions. A simple algorithm which uses a recursive function to solve the puzzle. Generating and solving sudoku puzzles with a unique solution in python using a backtracking depth first search algorithm.

Sudoku is a 9x9 matrix filled with numbers 1 to 9 in such a way that every row column and sub matrix 3x3 has each of the digits from 1 to 9. In this post i m going to walk through how to write a sudoku solver using logic and basic python data structures. There are several algorithms that can be used to solve sudoku puzzles and in this post we will use a backtracking algorithm to both generate and solve the puzzles. David adler author 8 years 2 months ago flag.

L is a list variable that has been passed from the solve sudoku function to keep track of incrementation of rows and columns.