Schedule Of Exams

The International Logic Olympiad (ILO) consists of several phases, starting with preliminary online rounds and culminating in an in-person final round at Stanford University.

All course materials needed for the ILO can be found in the Curriculum↗.

Preliminary Rounds (Online)

Round 1: (March 8th)

Round 2: (March 29th)

Round 3: (April 26th)

Final Round (In-Person at Stanford University)

The final round will be three days long and occur during the first week of July 2025.

Taking Online Exams

The exam window opens at 05:00 PM PDT on the exam day and closes at 05:00 PM PDT on the following day.

You MUST begin your exam before 03:45 PM PDT on the closing day.

You will have 75 minutes to complete the exam.

All participants must submit their answers individually regardless of team status.

Failure to comply may result in a '0' for that round. If you are experiencing technical issues during exam period, you MUST PROVIDE screenshots and email it to us to aid in resolving the issue (Issues must be reported during exam hours).

Grading

Finalists will be chosen based on your team's relative performance across all three rounds compared to the entire participant pool. Keep in mind that there is no minimum cut-off score to "pass" each round.

Final Round At Stanford university

The International Logic Olympiad (ILO) 2025 Final will be held in person at Stanford University from July 1–3, 2025. Finalists from around the world will participate in a three-day event featuring the final round of testing, engaging logic puzzles, and exclusive campus tours. Participants are expected to arrange their own travel, and while we do not facilitate visas, we can provide necessary documentation for individuals who require it. There will be an expected cost of 200$ for finalist to cover food and other event-related expenses, subject to change depending on final arrangements and unforeseen circumstances.