ATTENTION · FREE TO PLAY

Odd One Out

Find the different symbol in a field of similar shapes.

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How to play Odd One Out

  1. Find the different symbol in a field of similar shapes.
  2. Read the prompt carefully and choose an answer, or type into the answer field.
  3. After checking, read the explanation. Use “Next round” to continue.
  4. Complete ten rounds for a score out of 100. Restart creates a fresh session.

A worked example

Find ★. Select its tile.

the answer is tile 16. Scan in rows instead of jumping randomly.

Find one changed symbol in the grid

Read the requested symbol and scan for the single matching tile among repeated distractors. This version uses shapes rather than letters or numbers. It is a visual-search variation, not a test of general reasoning or a puzzle with a hidden category rule.

Try the letter-based visual search

A useful way to practice

Read the current rule before reacting. Device latency, input method, distractions and familiarity can all change a result. For fairer comparisons, use the same device and avoid treating a score as a diagnosis.

What your result means

This is a recreational attention activity. Results describe performance on this particular task, with this device and these rules. They are not a clinical assessment, IQ score or promise of improvements in daily life. Your best result and recent sessions stay in this browser; no account is required.

Is Odd One Out free?

Yes. You can play the full activity without a payment, download or account.

Can I use a keyboard?

Use Tab to focus buttons and Enter or Space to activate them. Answer fields accept normal typing. The maze also supports arrow keys. Timed tests will differ between touch, mouse and keyboard input.

Why did my result change?

Practice, a different generated puzzle, distractions and input timing all affect results. Compare several sessions rather than drawing a conclusion from one attempt.