© 2025 Andrei Udriște, Dawid Skrzos
Numerus Strictus Logicae II, co-authored with Dawid Skrzos, is an uncommonly difficult IQ test that takes the notion of culture fairness to new heights.
The sole prerequisite for attempting this test is the ability to count—specifically, from zero to one hundred.
To emphasize: although numerical in nature, no mathematical operations are employed—nor are they permitted, for that matter.
By ordering this test, you attest that you will honor its copyright by completing it independently, without sharing or discussing it with others under any circumstances.
To order the test and submit your answers, please use nsl36submission@gmail.com. Authenticate yourself by providing your full name, country of origin and age. (Not open to individuals under 18)
Note: There is a fee of €30 per submission, payable via PayPal. Each individual is permitted two submissions for this test.
After payment is received, the test will be sent to you within 24 hours. Similarly, your score report will be delivered within 24 hours of receiving your completed answers.
Score reports will include an associated IQ score, based on the current norm at the time, estimated from the available data.
Estimated norm:
| Raw score | IQ (SD = 15) |
|---|---|
| 4 | 108 |
| 8 | 127 |
| 12 | 135 |
| 16 | 141 |
| 20 | 149 |
| 24 | 156 |
| 28 | 168 |
| 32 | 177 |
| 36 | 182 |
| 40 | ≥197 |
Disclaimer: These norms are valid only under conditions of fully independent completion.
Any external aid invalidates the resulting estimate.
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