Solves All Sudoku Puzzles Writen in MATLAB code

This is a depth first search algorithm for find the solution to sudoku puzzles in matlab. It finds a hole, and tries to plug it with a number from 1 to 9. if it sucessfully finds something that will fill the hole in the puzzle it will move on to the next hole. If it can't find a valid number to fill the hole with, it assumes one of its earlier guesses was wrong and backtracks. It will go as far as possible along each branch before backtracking to a previous assumption.

This algorithm works as long as the sudoku puzzle it was given is valid. It simply iterates through every permutation of the given puzzle until it finds a valid solution with complete disregard for inteligent strategy