If this assignment leads to a solution, return true. ![]() Assign numbers one by one to the empty cell, if it is safe to assign a number, recursively repeat the above steps.Let the row and column of the empty cell be i and j respectively.Find an empty cell, if there is no empty cell, then the puzzle is solved and we return.This tends to reduce the time taken to solve the puzzle, but the overall upper bound on time complexity remains the same. ![]() The time complexity of this process is very high, so we use backtracking to cut down the recursion as soon as we found that the current path will not lead to a solution. ![]() The basic algorithm to solve the sudoku puzzle(sudoku solver) is to try all the combinations of the numbers and choose the solution that satisfies the above conditions.
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