© 2024 Andrei Udriște
Numerus Strictus Logicae is an uncommonly difficult IQ test comprising 36 numerical puzzles of strict logic which, in order to solve, require keen observation, deep insight and no knowledge beyond addition, multiplication, subtraction and division.
Moreover, I have spent thoughtful effort embedding clues within each puzzle, aiming to make solving a step-by-step deductive process, without employing complex calculations, so as not to require the use of a calculator.
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 only one submission for this test.
After payment is received, the test will be sent to you within 24 hours. Similarly, your score report and certificate (sample) 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) |
|---|---|
| 9 | 124 |
| 12 | 132 |
| 15 | 143 |
| 18 | 151 |
| 21 | 158 |
| 24 | 166 |
| 27 | 173 |
| 30 | 181 |
| 33 | 193 |
| 36 | ≥205 |
Disclaimer: These norms are valid only under conditions of fully independent completion.
Any external aid invalidates the resulting estimate.
Review the full statistical report here.
Check out the leaderboard here.
I’m Andrei Udriște, based in Romania. I design high-range reasoning assessments, underpinned by detailed statistical analysis.
In my work, I strive for cultural fairness, unambiguous construction, and original problem design, aiming to reward observation and insight over guesswork or brute-force search.
My high-IQ society memberships include OLYMPIQ, Glia, Imhotep (Mathematicus), Thoth (Candidatus Maior), Ultima, Intruellect, and True.
Across established high-range tests, I have achieved notable scores, including:
| Test | Author | Attempt | Date | Raw | IQ (SD = 15) |
|---|---|---|---|---|---|
| SPEED | Ivan Ivec | 2nd | 19.11.2023 | 27/30 | 172 |
| SEQS I | Ladislav Dubravský | 1st | 30.08.2024 | 36/50 | 174.7 |
| NAIT | Marc-André Nydegger | 1st | 10.07.2025 | 114/120 | 179 |
| Test For Genius | Paul Cooijmans | 1st | 02.07.2024 | 53/87 | 179 |
| LSHR | Ivan Ivec | 1st | 10.12.2023 | 20.5/30 | 171.5 |
| Simtollect | Ivan Ivec | 1st | 10.11.2024 | 39/40 | 170 |
| Associative LIMIT | Paul Cooijmans | 1st | 01.04.2024 | 76/90 | 172 |
