A non-verbal, image-based reasoning test built from the classic item formats of professional intelligence tests. No language skills or general knowledge needed – only logic, observation and spatial thinking.
20questions per attempt
200questions in the bank
11question types
~25 minsuggested time
What kind of test is this?
This is a fluid reasoning test. Fluid reasoning is the ability to solve new problems, discover rules and think abstractly – independent of what you have learned at school. Every question is a picture (or a sequence of pictures) that follows a hidden rule. Your job is to find the rule and choose the answer that fits.
The question formats follow the tasks used in well-known psychometric tests: Raven's Progressive Matrices (matrix completion with progression, distribution and figure-addition rules), the Cattell Culture Fair Test (series, classification, matrices and spatial "conditions"), and the fluid-reasoning subtests of the Wechsler scales (Matrix Reasoning, Figure Weights), plus the spatial classics mental rotation and paper folding. All items are original and generated for this test – they are not copies of any published test.
The 11 question types
Matrix reasoningFind the missing piece of a 3×3 grid whose rows and columns follow rules. Raven · Wechsler
Figure additionPictures in a row are combined, subtracted or compared to give the third one. Raven (advanced items)
Number seriesWork out the rule behind a row of numbers and give the next one. Cattell · classic IQ
Figure seriesPointers rotate, objects change and counters grow – what comes next? Cattell "Series"
Odd one outFind the figure that breaks the rule (shape, symmetry, number of sides, mirror image). Cattell "Classification"
Figure analogiesA is to B as C is to … ? Analogical reasoning
Sequence logicSeveral dots move around a frame, each by its own rule. Cattell "Series"
Figure weightsBalanced scales reveal how heavy each shape is – balance the last scale. Wechsler WAIS · WISC
Spatial conditionsIn which picture can a dot be placed inside/outside the same shapes? Cattell "Conditions" (topology)
Mental rotation (3D)Which block figure is the same object, only turned? Spatial ability
Paper foldingA folded sheet is punched – how does it look when opened? Spatial visualisation
How it works
Each time you press Start, 20 questions are drawn at random from the bank of 200, so every attempt is different.
The 20 questions are balanced: 4 questions from each of the 5 difficulty levels, with a different mix of types each time, shown from easiest to hardest.
Choose one answer per question, then press Next. You can also use the keys 1–5 and Enter. There is no time limit and no penalty for guessing.
At the end you get your estimated IQ, percentile, a breakdown by question type and a review of your answers.
What the questions look like
How the score is calculated
Harder questions are worth more points (level 1 = 1 point … level 5 = 5 points). Your weighted score is converted to an IQ estimate on the usual scale (average 100, standard deviation 15), reported between 70 and 145.
Please note: this is an entertainment and self-assessment tool, not a standardised, clinically validated test. A 20-question test cannot measure intelligence precisely – treat the result as a rough indication (roughly ±10 points or more). For a formal assessment, consult a qualified psychologist.