# Black and white squares puzzle

Can anyone help me solve this puzzle?

• The google form you got this seems to be some sort of quiz. Are you allowed to post this here? Apr 10 '20 at 18:47
• @tom I know, I'm just wondering if the quiz is an open quiz, and whether this puzzle should be allowed to be reopened Apr 10 '20 at 18:50
• @Ash - please do a better job of explaining where you found the problem because it looks like you are just trying to send us to your quiz. It would really help if you put more into your question ...;. e.g. I found this problem in an online survey - see <<insert link>>
– tom
Apr 10 '20 at 18:50
• @BeastlyGerbil yes. I don't think this Q should be used to drive traffic to the survey, but if it is explained then it would not be so bad.
– tom
Apr 10 '20 at 18:52
• My guess is that Ash isn't the maker of the online thing trying to drive traffic to it, but someone who's trying to do the online thing and looking for help. Ash, it would be very helpful to know more. What is the Google Forms document you've pointed us at? How did you find it? Whose is it? Apr 10 '20 at 18:59

## 2 Answers

The answer is:

B. Flip the middle column blocks around the central horizontal axis, and AND it with the left block in the row to get the right block.

• Thanks so much.
– Ash
Apr 10 '20 at 20:21
• Boy, is that concise or what! Apr 10 '20 at 20:33
• @JMP, did you do this on paper or in your own head? I did not have paper and pen with me at the time of solving this, which made this particular problem harder.
– Ash
Apr 10 '20 at 21:36
• In my head. You can see that the top two left and right blocks have two blocks in common, b,c,e fit the pattern, and b has a neat match to the bottom middle block.
– JMP
Apr 10 '20 at 21:41

Answer:

C completes the pattern if you count the number of black squares vertically and horizontally, it would be 8, 10, 14, both ways.

• Thanks for your answer but I think JMP, in his answer, considers the order of the blocks as well.
– Ash
Apr 10 '20 at 20:24