A clever build just dropped. The twist is what makes it different from every other coding platform out there.
The idea: two developers match up in real time, get the same challenge, and race to solve it. Tests run live. An ELO system updates rankings after every battle.
That’s the whole design philosophy: it feels like gaming, not grinding.
Here’s how a match works:
- 🎮 Two devs get matched automatically
- ⚡ Both receive the same coding problem
- 🔄 Submit code, tests execute in real time
- 📊 Faster finish = ELO gain, slower = drop
Pro tip: this is actually solid for interview prep. Racing against someone with a clock running forces you to write working code fast, not just correct code. That gap matters in real interviews.
The builder just hit 100 users and is actively collecting feedback on what would make battles more competitive or fun.
Try it at arena.braehq.co 🚀
Frequently Asked Questions
Q: How is this different from LeetCode?
Instead of solo grinding on LeetCode (which hits a wall, as one user mentioned), Arena puts you in real-time 1v1 races against other developers. Tests run live, rankings are tracked with ELO, and the whole thing feels more like competitive gaming than traditional coding practice.
Q: Can I use this to prep for interviews?
Yes. The creator built it specifically thinking about interview prep. Real-time problem-solving under the pressure of racing someone mirrors interview conditions pretty well, plus there’s zero setup. Just jump in and start.
Q: How does the ELO ranking work?
Like competitive games. Your rating goes up when you beat stronger players, down when you lose, and stays stable against evenly matched opponents. It gives you a concrete sense of where you stand relative to everyone else on the platform.
Q: Is this just a competition game, or is there real learning?
Both. The competitive pressure actually helps you learn faster. When you’re racing someone, you focus way more than grinding alone. That’s the whole point of the design: make coding practice feel like gaming instead of work.
I built a platform for live 1v1 coding battles and just passed 100 users
by u/Usual_Diet_481 in PromptEngineering