Try the Free Senior Logic Challenge

NZ Years 10–13 · Introductory formal reasoning · 20–25 minutes · Free

Explore how rules, arguments and symbolic statements work through 12 multiple-choice questions, one per page, and an optional proof or explanation. Work at your own pace; there is no enforced timer. Useful definitions are included.

Start the Free Senior Challenge

Prefer a gentler introduction? Try the Junior Challenge first.

Which challenge should I choose?

Junior: NZ Years 7–9, or older beginners who want a gentler introduction through everyday rules, patterns and puzzles.

Senior: NZ Years 10–13, with introductory formal statements, arguments, deduction and proof. Definitions are provided; no previous formal logic course is required.

If you are unsure, start with Junior. Choosing Junior first is not a setback. These are learning activities, not placement exams.

A small taste of logical thinking

Example: Every member of the chess club is a student. Does it follow that every student is a member of the chess club?

Reasoning: No. The club members belong to the group of students, but this does not mean that the club contains all students. A student who is not a club member is a counterexample to the second claim.

This is an introductory example, not one of the scored challenge questions.

What is logic?

Logic is the study of how conclusions follow from information and rules. Students learn to separate facts from assumptions, organise conditions, draw conclusions, check for mistakes and explain why an answer follows. These habits are useful in mathematics, computing, science and everyday decision-making.

Why explore it in the age of AI?

Getting an answer is only one part of learning. Students also need to judge whether the answer is supported by the evidence, spot missing assumptions and test a claim. This free challenge offers a first experience of that kind of thinking.

What will you try?

The Senior questions introduce Understand, Formalise, Analyse, Deduce, Prove and Apply. They cover conditions, quantifiers, deductions, proof strategies, counterexamples and simple computing rules.

Your result and what it means

Each correct multiple-choice answer earns 2 points: 12 questions, with a maximum score of 24. After submitting, review your result and check the email address entered in the form for a results email containing your score, the correct answer key and your submitted answers as a PDF. Please also check your spam or junk folder.

The score is a short learning snapshot, not a pass/fail decision or a prediction of competition performance. An optional written explanation is not included in the automatic score. A detailed skills profile or written-reasoning assessment would require teacher review and is not issued automatically.

Questions families often ask

Is it really free? Yes. No payment or course purchase is required to take the challenge.

Do I need to prepare? No previous formal logic course is required. Read each question carefully and try it independently. Use paper for your working if helpful; do not use AI, online search or a calculator.

Is this an official competition entry? This is a PINNACLE learning activity. It does not register or qualify a student for the International Logic Olympiad (ILO), and it carries no official competition award or certificate.

What if the email does not arrive? Check that the email address was entered correctly and check spam or junk. Contact info@pinnaclek12.com for help.

Do I have to join a course afterwards? No. Further practice, workshops, courses and official ILO participation are optional, separate choices. Course updates are optional.

Register interest in PINNACLE Logic learning — free, with no obligation to enrol.