I need the algorithm or data diagram to make a Sudoku solver in LabView:

The image bellow is the one I used but didn't work

the assignment is : LabVIEW VI for Sudoku Solver Helper Objective: To collaboratively document the LabVIEW VI code for a Sudoku solver, detailing the major steps of the code and explaining how the rules of Sudoku are implemented. Introduction Brief overview of the assignment.Objectives of the assignment. Understanding the LabVIEW VI Code Overview of the Sudoku solver helper VI$.$ Explanation of the user interface and main components.Major Steps of the Code Initialization: Setting up the Sudoku fields.Initializing variables and data structures.Input Handling: How does the user interface with the code. Is there any error checking on the inputs.Solving Algorithm: Explanation of the rules of Sudoku for a $9$x$9$ field. How the algorithm iterates through the field.Application of Sudoku Rules in the Code Row Constraints: Column Constraints: Sub $-$ grid Constraints: Validation Functions: Detailed explanation of functions used to check constraints.Output Handling: Explanation of how the results are displayed. Code Documentation Standards Importance of good documentation in software development. Naming conventions for variables and functions.