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🎨L3 · 14 modules · 104 lessons

Creative Challenges

10 unique formats nobody else teaches

100 lessons across 10 themed modules: Code Detective (broken-codebase mysteries), AI Pair-Reversed (catch Claude's deliberate bugs), Time-Travel Refactor (Python 2.4 → modern), Bug Bounty, Code Golf (shortest wins), Refactor Master (legacy → idiomatic), Whodunit Mysteries, Performance Showdowns, Edge Case Hunter, Magic Demystified (dunders, descriptors, metaclasses, full mini-ORM).

Browse all 104 lessons →Try the first lesson — no signup
104
lessons
14
modules
10
capstone missions
18
languages
What you'll learn

From day one

  • ✓🕵️ Code Detective — solve broken codebase mysteries from stack-trace clues
  • ✓🤖 AI Pair-Reversed — Claude proposes buggy code, you spot the issue
  • ✓🕰️ Time-Travel Refactor — Python 2.4 legacy → modern 3.12 idiom
  • ✓🐛 Bug Bounty — production-grade bug fixes with realistic context
  • ✓⛳ Code Golf — shortest correct Python solutions
  • ✓🔧 Refactor Master — legacy patterns to idiomatic
  • ✓🔮 Whodunit Mysteries — pyramid-of-doom, late-binding closures, heisenbugs
  • ✓🎯 Performance Showdowns — measured speed comparisons
  • ✓🔬 Edge Case Hunter — empty, single, negative, unicode, duplicates
  • ✓✨ Magic Demystified — dunders, descriptors, metaclasses, mini-ORM
Curriculum

14 modules · 104 interactive lessons

#1Module 1 · 🕵️ Code Detective (15)
#2Module 2 · 🤖 AI Pair-Reversed (5)
#3Module 2 · 🤖 AI Pair-Reversed · Recap
#4Module 3 · 🕰️ Time-Travel Refactor (10)
#5Module 4 · 🐛 Bug Bounty (10)
#6Module 4 · 🐛 Bug Bounty · Recap
#7Module 5 · ⛳ Code Golf (10)
#8Module 6 · 🔧 Refactor Master (10)
#9Module 6 · 🔧 Refactor Master · Recap
#10Module 7 · 🔮 Whodunit Mysteries (10)
See all 104 lessons →

Frequently asked

What does 'Creative Challenges' actually mean?

Lesson formats nobody else teaches — Code Detective (broken-codebase mysteries), AI Pair-Reversed (catch Claude's deliberate bugs), Time-Travel Refactor (Python 2.4 → modern), Bug Bounty, Code Golf, Refactor Master.

Is this beginner-friendly?

Mostly mid-level. You need to read code fluently. Foundations + a couple of the advanced tracks first, then come here for the variety.

Why a track of 'unusual' formats?

Because LeetCode-style drill burns out. This track is the variety that keeps you coming back — same Python skills, different game.

Does it count toward portfolio?

The Refactor Master + Bug Bounty modules give you concrete improved-code-by-X bullets. Code Golf is mostly fun, not portfolio material.

First 15 lessons free, no signup

All 104 lessons unlock for $12/month or $89/year. 7-day free trial — card required, cancel in 1 click anytime in Settings.

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