How I Built My First Game: A Chess Game in Python

Introduction

The very first game I ever learned wasn’t on a screen — it was on a board. I still remember sitting across from my father as he patiently taught me how to play chess. Those early games sparked something in me — not just a love for strategy, but a deep curiosity about how games worked. Years later, as I started learning to code, it felt only natural to return to that childhood classic and try to bring it to life myself. That’s how I ended up building my first ever game: a digital chess game in Python.

Why Chess?

Chess has always fascinated me. It’s simple in appearance but incredibly deep in logic. As a beginner programmer, I wanted a project that would challenge me, but also feel familiar. I wasn’t ready to dive into flashy graphics or complex engines — I wanted to focus on logic, structure, and game rules. Chess checked every box.

Tech Stack & Tools

I kept things pretty lean and beginner-friendly:

• Language: Python

• Libraries: I used standard Python for the logic, and experimented with pygame to display the board and handle mouse input.

• Editor: Visual Studio Code

No game engines, no fancy frameworks — just pure code and problem-solving.

How I Built It

1.

Designing the Board

I started by creating an 8x8 grid using a 2D array. Each square could either be empty or contain a piece. I created a simple system using characters like 'P' for pawns, 'R' for rooks, etc., and later expanded it into full object-oriented pieces.

2.

Representing the Pieces

Each piece had its own class with methods to determine its legal moves. This helped me practice object-oriented programming and think about how real-world rules can be translated into code logic.

3.

Implementing the Rules

This part took the most time. I had to code:

• Turn-based movement

• Legal move validation (including en passant, castling, and promotion)

• Check and checkmate detection

This really pushed me to understand control flow, debugging, and the importance of clean code.

4.

Adding a User Interface

At first, I used the terminal to input moves (like e2 to e4). Later, I introduced pygame to create a graphical board and allow users to click on pieces and move them with the mouse. It wasn’t fancy, but it made the game feel more real.

Challenges I Faced

There were plenty of hurdles:

• Tracking piece states across turns (like whether a king or rook had moved, for castling)

• Detecting check and checkmate conditions accurately

• Managing bugs that only appeared in edge cases

I probably rewrote the move logic three times. But each iteration taught me more about how to structure logic cleanly and how to debug methodically.

What I Learned

More than anything, I learned how to break down a complex problem into smaller, solvable pieces. Chess forced me to think like both a programmer and a player. It sharpened my understanding of:

• Object-oriented design

• Game loop logic

• Event handling (in pygame)

• Project organization

It also gave me the confidence to start thinking about what other games I might want to build next.

What’s Next?

There’s still more I want to add:

• Smarter AI opponent

• A full-featured GUI with piece images

• Game saving/loading

• Maybe even a multiplayer version

But more importantly, this project opened the door. Now I’m hooked — not just on playing games, but on making them.

Conclusion

Building this chess game wasn’t easy, but it was incredibly rewarding. If you’re new to programming and looking for a project that will push you to think deeply, consider building a game — maybe even chess. It’s the perfect blend of logic, creativity, and challenge.

Thanks for reading — and if you’ve built a game yourself or are thinking about it, I’d love to hear about your experience!