After travelling around the world and returning home, I opened my passport to admire my stamps.

Five individual pieces of paper fell to the floor:

enter image description here

I must have picked them up somewhere, but I can't remember where...

Hint #1

All of these pieces have printing on one side only.

Hint #2

Some of the edges appear to be carefully torn.

  • $\begingroup$ The triangles are the wrong shape to make up a QR code... Am I meant to resize them? Based on the fact that you said they were "pieces of paper," that suggests to me that they would already be the proper size. $\endgroup$
    – phroureo
    Oct 31, 2017 at 16:14
  • $\begingroup$ @phroureo I don't know what to say without giving it away. Everything is the 'proper size'. You might need to think differently. $\endgroup$
    – Ambo100
    Oct 31, 2017 at 16:14
  • $\begingroup$ I recommend leaving the image linked, as having access to the image for manipulation may be needed by some in attempting to solve the puzzle, and being able to click through to the individual file is rather helpful. $\endgroup$ Oct 31, 2017 at 16:52
  • $\begingroup$ @feelinferrety I'm not sure it makes a difference but I've reverted the edit if it helps others. $\endgroup$
    – Ambo100
    Oct 31, 2017 at 16:54

1 Answer 1



You were in Giza, Egypt, at the Pyramid of Khafre?


The four black and white pieces of papers seem to be parts of a QR code, but they appear skewed. However, if you stand them up along their hypotenuse edges and, using the black square as a base, lean them against one another so that the 4 corners come together to form a pyramid, the intent becomes apparent. When viewed from above, the code is now readable, and scanning it with a mobile device, we find it decodes to +2.

The shape implies that we should be looking at pyramids, and I guess that the last hint is either to imply there's more than 2 pyramids (but that would be better hinted by 2+), or, more likely that the precise location is the "2nd" pyramid, hence the Pyramid of Khafre, since it is known as "The Second Pyramid" and is the second-tallest and second-largest pyramid of Giza.

  • $\begingroup$ It's possible to solve the puzzle with just the five pieces in physical form, that means no resizing is required. $\endgroup$
    – Ambo100
    Oct 31, 2017 at 16:32
  • $\begingroup$ Congratulations! There was also another meaning to the hidden code, which would have helped you find the answer if you hadn't already. $\endgroup$
    – Ambo100
    Oct 31, 2017 at 16:42
  • $\begingroup$ I don't understand your answer the way you've worded it. Can you specify what you mean or add visual aids? $\endgroup$ Oct 31, 2017 at 16:49
  • 1
    $\begingroup$ I rewrote it, I hope it makes more sense. English isn't my native language so .. :/ $\endgroup$
    – Damien
    Oct 31, 2017 at 17:00
  • 1
    $\begingroup$ I have added an edit to include an illustration to help visualise the answer. $\endgroup$
    – Ambo100
    Oct 31, 2017 at 17:04

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