International Logic Olympiad

Tools for Thought

Hermione Granger got it right when, facing the potion-master's test in Harry Potter, she said: "This isn't magic - it's logic - a puzzle. A lot of the greatest wizards haven't got an ounce of logic; they'd be stuck here forever." - Harry Potter and The Sorcerer's Stone. If you are a high school student, prove that you are a logical wizard. Sign up for the International Logic Olympiad. Demonstrate that you can outsmart the illogical wizards of Harry Potter.

The International Logic Olympiad is a world-wide competition in Logic for secondary school students. It consists of a several rounds of online tests in the Spring followed by a final in-person competition held in the Summer on the Stanford University campus.

The questions on the quizzes and in the final competition test the participants' understanding of Logic in a variety of ways - through questions about basic concepts (such as logical consistency and logical entailment), through the use logical reasoning techniques such as logic grids and logical proofs, and through logic puzzles of various sorts. (See the Sample Test link above.)

For those who need to brush up, the Olympiad provides educational materials to help prepare participants for the competition. (Click the Lessons link above to access the course materials.)