I've tried looking at the paper from different angles, and nothing is jumping out at me. I'm not sure what to try next. 7*8 grid with partially and completely filled squares.


  • 1
    $\begingroup$ Looks identical to this page in Martin Gardner book books.google.ca/… $\endgroup$
    – Len
    Commented Jan 30, 2015 at 8:51
  • 2
    $\begingroup$ I saw this in one of my 8th grade geometry textbooks a decade or so ago. $\endgroup$
    – geometrian
    Commented Jan 30, 2015 at 15:26

1 Answer 1


The answer is:

HELLO - just compress the vertical dimension like this:
enter image description here


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.