N-Queens Solver Documentation

Table of Contents

1. Introduction
2. Project Overview
3. Project Structure
4. How to Run
5. Algorithm Details
6. Concurrency
7. Graphical User Interface (GUI)
8. Dependencies
9. Performance Considerations
10. Future Improvements
11. Contributing
12. License
13. Video in Arabic to Explain The Project
14. Documentation File

1. Introduction

The N-Queens Solver is a Java application that aims to find solutions to the N-Queens problem. The N-Queens problem involves placing N queens on an N×N chessboard in such a way that no two queens threaten each other. The project utilizes a multithreaded approach for solving the problem and includes a graphical user interface (GUI) to visualize the solutions.

2. Project Overview

• NQueensSolver.java: Implements the core logic for solving the N-Queens problem.
• NQueensThread.java: Represents a thread for solving the problem concurrently.
• NQueensSolverGUI.java: Provides a graphical user interface for interacting with the solver.
• Main.java: The main entry point for running the application.
• pom.xml: Maven configuration for managing dependencies.

3. Project Structure

The project follows a modular structure:

• com.example.nqueenssolver
  • Main.java
  • solver
    • NQueensSolver.java
    • NQueensThread.java
  • gui
    • NQueensSolverGUI.java

4. How to Run

1. Ensure you have Java and Maven installed.
2. Clone the repository: git clone <repository-url>
3. Navigate to the project directory: cd Multithreaded-N-Queens-Problem-Solver
4. Build the project: mvn clean install

5. Algorithm Details

The algorithm uses a backtracking approach to explore all possible combinations of queen placements. The time complexity is (O(N!)), and the space complexity is (O(N)).

6. Concurrency

The project utilizes multithreading to solve the N-Queens problem concurrently. Each thread represents a unique attempt to find a solution.

7. Graphical User Interface (GUI)

The GUI, implemented using Java Swing, allows users to input the size of the chessboard (N) and visualize the solutions found by each thread.

8. Dependencies

• Java Swing for GUI components.
• Maven for project management.

9. Performance Considerations

The actual runtime may vary based on the hardware and environment. Consider adjusting thread count and other parameters for optimal performance.

10. Future Improvements

• Implement additional heuristics for faster pruning of the search space.
• Enhance GUI features for better user interaction.

11. Contributing

Contributions are welcome! Feel free to fork the project and submit pull requests.

12. License

This project is licensed under the MIT License.

13. Video in Arabic to Explain The Project

This video has been compressed. For better quality, please check the resources folder.

NQueensProject.mp4

14. Documentation File

Documention.pdf