Coder Duel

Pick a kit — then 2–4 players take turns on one device. Same questions for everyone; highest first-try score wins.

Choose a kit

Kit 1: Algorithms & Sequences grades 4-5 · 25 questions Kit 2: Loops & Patterns grades 4-5 · 25 questions Kit 3: Conditionals & Logic grades 5-6 · 25 questions Kit 4: Variables & Data Types grades 5-6 · 25 questions Kit 5: Functions & Decomposition grades 5-6 · 25 questions Kit 6: Debugging & Testing grades 6-7 · 25 questions Kit 7: Data Structures grades 6-7 · 25 questions Kit 8: Advanced Algorithms & Complexity grades 7-8 · 25 questions Kit 9: Object-Oriented Concepts grades 6-7 · 25 questions Kit 10: Recursion & Recursive Thinking grades 6-7 · 25 questions Kit 11: Algorithms & Efficiency grades 7-8 · 25 questions Kit 12: Software Design & Collaboration grades 7-8 · 25 questions Kit 13: Cross-Topic Connections grades 5-6 · 25 questions Kit 14: Real-World Applications grades 6-7 · 25 questions Kit 15: Misconceptions & Reasoning grades 6-7 · 25 questions Kit 16: Advanced Synthesis grades 7-8 · 25 questions