This is an IQ question from Brainzilla IQ test.The order seems a bit convoluted. Can someone please give me a fair answer?

enter image description here

  • 3
    $\begingroup$ That's a terrible IQ test, as it tests not only reasoning, but also color vision :/ They could fix it by using symbols instead of/on top of colors. $\endgroup$ Commented Jul 12, 2023 at 16:55

1 Answer 1


Reading the grids in natural (left to right, top to bottom) order, we have the following patterns:

Grey: A diagonal line of squares starting in the top-right, and moving down-left:
enter image description here

Yellow: A line of squares going anti-clockwise around the edge of the square , increasing in length by one each time:
enter image description here

But wherever grey and yellow overlap, you get a red square instead.
So the missing grid should be:
enter image description here
Which is option C

  • 5
    $\begingroup$ This is a great answer fljx!! $\endgroup$
    – user85025
    Commented Jul 11, 2023 at 9:51
  • 1
    $\begingroup$ ah, learned a new one with the yellow here... $\endgroup$
    – ilkkachu
    Commented Jul 12, 2023 at 7:01

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