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Sudoku IQ Test

A fun game to test your IQ. This is a free cognitive ability assessment that tests your logical thinking skills.

Sudoku is a great game for evaluating logical thinking.

Is easily deliverable online, and allows you to test your logical deduction in a pleasurable way.


This online cognitive skills quiz tests your mental aptitude.

Why is this of value to me?

What is your reasoning ability and problem solving skills. Gyfted's free IQ test is a fun challenge for your brain that gives you instant results.

How you can use this test?

Ways you can use your online free Sudoku IQ Test results:
Test your problem solving skills using this self assessment
Check your answers via immediate feedback
A free IQ quiz with instant results

How it works?

Take this assessment when
you’re at ease, undisturbed
and ready to focus.
Our instructions will guide
you through the process. It’s
easy - just go with your gut
After completing the test,
you will receive your
feedback immediately
Share your results with
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What's Inside? Get immediate feedback by measuring these traits in you

Sudoku IQ Score
this single scale measures your numerical and logical reasoning abilities, as demonstrated through your performance on a series of Sudoku puzzles. A high score on this scale indicates strong aptitude in deductive reasoning, pattern recognition, and strategic planning, skills crucial for problem-solving. Despite its less formal nature, the Sudoku IQ Test can still provide valuable insights into your cognitive strengths, particularly in numeric and logical domains.

Sudoku IQ Test

The Sudoku IQ Test, alternatively known as logical reasoning test or numeric IQ test, measures your numerical and logical reasoning abilities. This type of test can help determine your cognitive strengths, especially valuable for career paths that require strong numeric and problem-solving skills.
The Sudoku IQ Test, while fun and engaging, doesn't have a strong foundation in psychometric research. However, it still requires and measures logical and deductive reasoning skills.

Assessment Insights

This Sudoku IQ Test is a fun tool for promoting cognitive development and problem-solving skills. Understanding one's ability in such puzzles can also foster patience and perseverance when faced with complex challenges in interpersonal settings.

In the workplace, the Sudoku IQ Test can be used as a team-building exercise to encourage collaboration and communication among colleagues. By working together to solve the puzzle, team members can learn to trust each other's abilities and develop a sense of camaraderie. Additionally, the test can be used as a hiring tool to assess a candidate's problem-solving skills and cognitive abilities. In team settings, the Sudoku IQ Test can be used to identify individual strengths and weaknesses, allowing team members to delegate tasks more effectively and work more efficiently. Furthermore, the test can be used to promote healthy competition among team members, encouraging them to strive for excellence and improve their skills. Overall, the Sudoku IQ Test is a versatile tool that can be used in a variety of workplace and team settings to promote cognitive development, problem-solving skills, and teamwork.

Scientific and Empirical Foundations

Cognitive benefits of solving puzzles: Willis, S. L., & Schaie, K. W. (1986). Training the elderly on the ability factors of spatial orientation and inductive reasoning. Psychology and Aging, 1(3), 239-247.

Relationship between Sudoku and logical reasoning skills: Neto, F., & Furnham, A. (2009). Age and sex differences in Sudoku and logic puzzle performance. Learning and Individual Differences, 19(2), 238-241.

Using Sudoku in team-building activities: Hertel, G., Niemeyer, G., & Clauss, A. (2008). Task design and team processes in interactive team building. Journal of Applied Psychology, 93(3), 519-527.

Role of Sudoku puzzles in cognitive development: Voyer, D., Voyer, S., & Bryden, M. P. (1995). Magnitude of sex differences in spatial abilities: A meta-analysis and consideration of critical variables. Psychological Bulletin, 117(2), 250-270.

Using Sudoku as a hiring tool: Kuncel, N. R., Hezlett, S. A., & Ones, D. S. (2004). Academic performance, career potential, creativity, and job performance: Can one construct predict them all? Journal of Personality and Social Psychology, 86(1), 148-161.

Sudoku puzzles and healthy competition: Tauer, J. M., & Harackiewicz, J. M. (2004). The effects of cooperation and competition on intrinsic motivation and performance. Journal of Personality and Social Psychology, 86(6), 849-861.

Sudoku IQ Test

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Lead expert behind this test

Cognitive Scientist

Cognitive Science PhD, Jagiellonian University Cognitive Science MSc, UJ

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      Frequently asked questions

      What is reasoning ability?

      Reasoning is the ability to assess things rationally by applying logic based on new or existing information when making a decision or solving a problem. Gyfted's free Sudoku IQ assessment is a great example of a logic based reasoning test that helps you discover your analytical and problem solving skills.

      What are types of reasoning?

      Reasoning is the ability to assess things rationally by applying logic based on new or existing information when making a decision or solving a problem. Gyfted's free Sudoku IQ assessment is a great example of a logic based reasoning test that helps you discover your analytical and problem solving skills.
      1. Deductive reasoning - uses formal logic and observations to prove a theory or a hypothesis.
      2. Inductive reasoning - uses theories and assumptions to validate one's observations.
      3. Analogical reasoning - finds similarities between two, or more, things and then leverages them to find common patterns to them.
      4. Abductive reasoning - uses an observation to reach a logical conclusion.
      5. Cause-and-effect reasoning - reasoning in which you show linkage between two events.
      6. Critical thinking - involves extensive rational thought about a specific subject in order to come to a definitive conclusion. It is most helpful in fields such as computing, engineering, social sciences and logic.
      7. Decompositional reasoning - a process of breaking things into constituent parts to understand the function of each single component and how each one contributes to the item as a whole.

      How does Sudoku work?

      Sudoku is a fun game played on a grid of 9 x 9 spaces. In the rows and columns are 9 squares (ie. the game is made up of 3 x 3 spaces). Each row, column and square needs to be filled out with symbols (or eg. numbers 1-9), without repeating any of the symbols (or numbers) within the row, column or square. Sudoku is a great example of a game of logical thinking skills that helps evaluate one's cognitive ability. If you're looking for how to challenge your brain or how to test your IQ, then you've come to the right place.