Puzzles & Math · Free browser test

Odd One Out Game

Quickly identify the one different symbol in a randomized grid of lookalikes.

Play Odd One Out Game

Find the unusual symbol among a field of similar characters.

How to play Odd One Out Game

Find the unusual symbol among a field of similar characters.

How results are calculated

Correct answers and decision time over five rounds.

Accuracy, limitations and fair comparisons

Fonts, vision and screen brightness affect detection. The challenge runs in your current browser session; compare repeated attempts on the same device for a more useful personal reference.

Questions and answers

Is Odd One Out Game free?

Yes. This activity is free and does not require registration.

Does this test upload my input or score?

No. Gameplay and optional history storage run in your browser on this device; exporting a result requires your own action.

What is the measured result?

Correct answers and decision time over five rounds.

Can the result be treated as a medical or hardware diagnosis?

No. Fonts, vision and screen brightness affect detection.

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