🧠 Sudoku - Python Backtracking GUI Game

Welcome to the Sudoku project — a PyGame-based Sudoku puzzle generator and solver using backtracking, designed with a user-friendly GUI.

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🎯 Features

• ✅ Random Puzzle Generation every run (guaranteed solvable)
• 🎮 GUI built with pygame
• ✍️ Click cells to input numbers
• 🧠 Backtracking Solver (Press S)
• 🧪 Check Your Solution (Press C)
• 🔄 Generate a new puzzle anytime (Press N)
• ✅ Visual validation ("Correct"/"Incorrect" popup)
• 👀 Clean, legible fonts and layout

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🖼️ Proof of Functionality

Screenshots stored in the img/ folder:

• Puzzle screen with inputs
• Solved board display
• Correctness check message

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⌨️ Controls

Key	Action
S	Auto-solve puzzle
C	Check current input
N	New puzzle
Q	Quit the game

Click on a cell and type digits 1-9 to manually play.

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📁 Project Structure

Sudoku/
├── img/                # Screenshots folder
├── Sudoku.py           # Main game file
├── README.md           # Project description
└── LICENSE

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🧠 Algorithm Used

This game uses a recursive backtracking algorithm that:

1. Fills the board with a complete valid solution
2. Removes a number of cells to create a playable puzzle
3. Solves the puzzle again using the same logic to ensure uniqueness

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📌 Requirements

• Python 3.6+
• pygame (pip install pygame)

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🚀 Run the Game

python3 Sudoku.py

Make sure your terminal has access to GUI display (macOS/Linux may require permissions).

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🛠️ Dev Info

Created by CodesBySanjay 🎓
Project Branch: Sudoku in Python Repo

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🕹️ More Projects Coming Soon

Each will have its own dedicated branch and README.