I found this old puzzle and have no idea how to get it together. I have been trying to complete it for several hours now but to no avail. The pieces of the puzzle are as follows:

Piece 1Piece 2Piece 3Piece 4Piece 5Piece 6

Also sorry if it has incorrect tag, correct me if needed, I couldn’t find any appropriate.

  • $\begingroup$ Do you know what it's supposed to look like when assembled? $\endgroup$
    – F1Krazy
    Commented Jan 31, 2018 at 13:15
  • 1
    $\begingroup$ @F1Krazy it is supposed to be a 3D plus sign. $\endgroup$ Commented Jan 31, 2018 at 15:14
  • $\begingroup$ Are the dark brown things a fixed part of the pieces? Because they look like they give away a bit of a hint. $\endgroup$
    – ilkkachu
    Commented Feb 6, 2018 at 18:44
  • $\begingroup$ @ilkkachu no, they are glued on solid... $\endgroup$ Commented Feb 6, 2018 at 20:06

3 Answers 3


Pieces 1 to 6 The pieces from 1 to 6 as shown in the question.

Put together the pieces P2 and P6 enter image description here

Add piece P5 enter image description here

Next is piece P4 enter image description here

Next is piece P3 enter image description here

Now you have to do some moves. At first the pieces P3 + P6enter image description here Now move piece P5 enter image description here and piece P4

Now you can add the last piece P1 enter image description here

To move P1, P4, P5 and P6 gets you to the solution. enter image description here

  • $\begingroup$ I wish I could upvote twice, perfect answer $\endgroup$
    – Saeïdryl
    Commented Feb 6, 2018 at 14:29
  • $\begingroup$ man thank you! I will try this tommorow, I don't have the puzzle with me now. But that looks amazing! Is there like some program for modelling those thing or is it just some 3D modelling CAD thing? $\endgroup$ Commented Feb 6, 2018 at 20:05
  • $\begingroup$ This is pretty much the same answer as I gave, just a slight variation in the order in which you assemble the pieces. $\endgroup$ Commented Feb 7, 2018 at 5:16

I think it is a 6-Pieces Burr Puzzle.

enter image description here

If you want to get the solution:

Visit this link: http://www.mathematische-basteleien.de/devilsknot.htm

Hope one of them will fit your puzzle!

  • $\begingroup$ Thank you for your reply. None of the solutions in the link provided, however, wasn’t for my puzzle... But thanks anyway! $\endgroup$ Commented Feb 3, 2018 at 12:12

I don't own the same puzzle as you, but I have a Burr puzzle set that is close. I am not completely sure if the solution I describe here will work on your puzzle.

I'll number the pieces #1 to #6 in the order you showed them in your question.

Combine pieces #4 and #6 to make rectangular ring. One end of the ring opening has a notch. Insert #5 into that ring so that it enters that notch.

enter image description here

Place #2 on one side of the ring, perpendicular to all the other pieces.

enter image description here

Piece #3 goes on the other side of the ring, to pair up with #2.

(Note, in the picture my thumb covers the piece a bit because I don't actually have a piece that matches your #3.)

enter image description here

The last piece, #1, cannot be put in place directly. The other pieces need to be slid about a bit to allow it to be inserted.

First slide #6 lengthwise, which disengages the notch from #5.

enter image description here

Now slide #5 up. This then allows #4 to move lengthways in the opposite direction that #6 went.

enter image description here

Pieces #4 and #6 have slid far enough apart that their ring is broken. This gives enough room to insert #1 inside the ring. Lastly, slide pieces #6, #5 and #4 back, and the puzzle should be solved (if I am visualising this correctly).


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