Skip to main content

Build Your Own Minesweeper

This challenge is to build your own version of the game Minesweeper.

Minesweeper is a logic puzzle game that I first came across when I got my first Windows PC, running Windows 95. The game has been around longer than that, Microsoft shipped a version in the early 1990s and some claim the origins date to 1983.

Recently I’ve been reminded about Minesweeper when my eldest son asked about coding his own version. So this Coding Challenge is for him.

It looks like this:

minesweeper.png

Would you like to know how to become a CTO in under 3 years?​

Then you might like to check out my Adelina Chalmers new Udemy course: **How to become a CTO in under 3 years – 5 practical ways!**

The Challenge - Building Your Own Minesweeper Game​

The rules of Minesweeper are relatively simple. The board is divided into a grid, with mines randomly distributed in the grid cells. To win, you need to open all the cells that you can without triggering a mine.

The number on a cell shows the number of cells adjacent to it that contain mines. Using this information, you can determine if a cell is safe or if it contains a mine. Cells believed to contain a mine can be marked with a flag.

Step Zero​

In this step, pick the programming language and development environment you’re going to use. Consider trying something different - this would be a great project to try a frontend stack if you’re a backend developer and vice versa.

If you’re from a data engineering or site-reliability engineering background you could leverage your knowledge of Python with PyGame or Go with Ebitenegine. Rustaceans can check out are we game yet for useful crates.

Minesweeper is relatively simple and as such, it’s a great platform for learning a new technology, or programming language.

You could create your own graphics for the game or there are some on opengameart.org that you can use.

Step 1​

In this step your goal is to draw the grid for the initial game state. It should look something like this:

minesweeper-new.png

The left hand number - 99 here - shows the number of mines left to find and the right hand number is the time in seconds since starting the game.

Step 2​

In this step your goal is to reveal the mine / safe state after a cell is clicked on. That should look something like this:

minesweeper-step2.png

Step 3​

In this step your goal is to detect hitting a mine, reveal the mines not found and offer to play again. For example:

minesweeper-step3.png

Opting to play again should re-start the game.

Step 4​

In this step your goal is to detect a win. A win is when all the mines are found. For example:

minesweeper-end.png

Going Further​

You can take this further by offering different size playing areas, the bigger the area the harder the game. You could also add a league table so people can record their best scores.

Help Others by Sharing Your Solutions!​

If you think your solution is an example other developers can learn from please share it, put it on GitHub, GitLab or elsewhere. Then let me know - ping me a message on the Discord Server or in the Coding Challenges Sub Reddit, via Twitter or LinkedIn or just post about it there and tag me.

Get The Challenges By Email​

If you would like to recieve the coding challenges by email, you can subscribe to the weekly newsletter on SubStack here: