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Carpet repair - puzzle of the week


A valuable carpet has been destroyed at two corners, these had to be cut off. Can you cut the remaining carpet in two pieces and put them together to form a square?

Enlarge image


Before I start cutting the carpet, first of all a big thank you to all readers who sent me further solutions to the postage stamp problem from last week.

Some have written their own small program that systematically searches for solutions.

So there are a total of five different ones - more on this in the solution.

Today's task could drive one or the other to despair.

I haven't found the solution myself.

Can you do it?

An old, very valuable carpet is damaged.

Two corners had to be cut off, the material there could no longer be saved.

It could not be replaced because of the special material.

In order to keep the carpet as close to the original as possible, it should be reworked by a workshop specializing in textile restoration.

The workshop finally succeeds in cutting the remaining carpet into two pieces and then joining them together to form a carpet with a square shape.

The pattern could be retained and no further piece of the carpet was lost.


How did the workshop manage that?

Note: The cut can be made straight.

However, other courses are also permitted.

However, the cut has to break the carpet into exactly two connected pieces.

Please scroll down to find the solution!

Photo: Michael Niestedt / DER SPIEGEL


The trick is achieved with the following splitting, reminiscent of saw teeth:


Put the two pieces together to form the square you are looking for:


If you have found another variant, you can send it to me by email.

The riddle comes from the book »Köpfchen, Köpfchen« by Boris Kordemski.

The original Russian version was published in 1959.

If you missed a puzzle from the past few weeks, here are the ten most recent episodes:

  • Brand diversity at Swiss Post

  • Is Dieter the thief?

  • One circle, two points

  • Guess the numbers - but clever

  • The legendary great-aunt

  • Cleaning orgy in the restaurant kitchen

  • A triangle the size of the earth

  • Looking for a spaghetti triangle

  • Patchwork in the square

  • Three euros, three dice

Source: spiegel

All business articles on 2021-04-11

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