Can you take on
the Dev Challenge?
Twelve decisions. Three rounds. One question: what would you do?
Start with the fundamentals. Work up to production tradeoffs. Discover where your judgment shines, then follow the trail into the field guide.
No timer. Think it through.No login.Answers stay in this tab; refresh resets the run.
Round 1
Find your footing
Recognize the right tool.
Round 2
Choose your approach
Reason through the constraints.
Round 3
Hold the line
Protect the real-world outcome.