-
-
Solving a puzzle of two birds
-
Solved!
-
Post with leaderboard scores on /r/Pixzle
-
Upload an image - first step in creating a Pixzle post
-
Crop the image - second step in creating a Pixzle post
-
Title the post - third step in creating a Pixzle post
-
Pixzle post Created! Go try to solve it!
-
View the new post
-
Solve the new post
-
Solving...
-
Solved!
-
Hi Score!
-
Looks great on mobile!
-
Dragging pieces around is super fun on mobile.
-
Solved!
-
Crop on mobile works too.
Pixzle — Turning Reddit Posts into Playable Puzzles
Inspiration
I’ve spent the last few years building Pixzle as an iOS mobile puzzle game. I love the idea of turning ordinary images into quick little interactive challenges.
As a mobile developer of over 15 years, and a dad with 1000’s of pictures on my phone (and two kids that love doing puzzles), I built Pixzle as a way to teach my kiddos a little bit about programming and also to give them something fun to do on long car rides.
When I saw the Reddit Daily Games Hackathon I immediately thought, Oh man I could totally make Pixzle for Reddit since Devvit supports React! I had always wanted to rewrite Pixzle in a different language and platform, and this hackathon gave me the reason.
What It Does
Pixzle transforms Reddit image posts into interactive sliding puzzles…
In a world where we scroll past photos in seconds, Pixzle brings presence and play back into artwork and memories.
Whether it's a sunset, a pet’s silly face, or your child’s latest masterpiece — solving a Pixzle means spending real time with the details you love: the curve of a smile, the way shadows fall, the textures and colors in the background of a landscape.
Solve times are tracked per user, so communities can have fun competing for top scores!
Users can:
- Upload an image
- Crop it to a perfect square
- Publish it as a playable puzzle post
- Compete for fastest solve times
- View live leaderboards
- Play a rotating Daily Puzzle
Instead of static content, each post becomes an interactive game.
What I Learned
This project stretched me technically.
- Built my first full solo production React app
- Learned Devvit’s architecture and deployment model
- Implemented image cropping, dynamic UI gradients, leaderboard persistence
- Designed state-driven game logic for deterministic puzzle behavior
- Agentic coding with ChatGPT Codex 5.2
Challenges
- Designing a clean Upload -> Crop -> Post flow inside Reddit constraints
- Handling image scaling and square enforcement consistently
- Keeping the UI polished while working within Devvit’s boundaries
- I only had 10 days to do this… got it in at the last second! ;)
Built With
- chatgpt
- codex
- css
- devvit
- html5
- node.js
- react
- typescript
- vite
Log in or sign up for Devpost to join the conversation.