The final answer consist of 11 letters and i'm looking for a name!

enter image description here

After you find the answer to the puzzle above, use this (to get the final answer):

107 71


In the example: How are the 2 x 5 grids related to the shapes? What can the 2 x 5 grid possibly represent?


Here are all 5 2x5 grids in horizontal position (in order) enter image description here

  • 3
    $\begingroup$ Hmmmm, seems like rot13(vs jr ahzore gur 10 fdhnerf va gur 2*5 tevq sebz mreb gb avar, gur ahzoref gur juvgr fdhnerf ercerfrag pna or erneenatrq gb or gur fhz bs vagreany natyrf bs gur cbyltba gb juvpu gur 2*5 tevq pbeerfcbaqf.) $\endgroup$
    – Jerry Dean
    Jul 23, 2021 at 10:30
  • 1
    $\begingroup$ @JerryDean Go on ;) $\endgroup$ Jul 23, 2021 at 10:39

1 Answer 1


The hidden name is:


First, as noted by @JerryDean in comments, we can see from the Example puzzle that:

If we number each of the cells in the 2x5 grids with digits from 0-9 in order along the rows, the digits in the white highlighted cells can be arranged so as to form the sum of the internal angles of the shape in the corresponding position in the diagram:

Explaining the 2x5 grids

Importantly, this teaches us that...

...we should interpret the grids in the first puzzle image as highlighting digits that can be arranged to represent a specific angle, in degrees.

Specifically, like so:

Interpreting puzzle grid 1

Note next that...

...if you look at the equivalent rows of the second puzzle image, there are angles of these matching sizes!

Matching angles in image 2

Now look at the third puzzle image, and...

...overlaying the second image, see which digits these angles trace a path through:

Tracing paths in image 3

What are these? Well, put them all together and they look like...

Years! Specifically, 1856-1943.

If we combine these with the additional numbers provided by the OP 107 71, and interpret these as a concatenated day and month number, we can form a pair of dates:

10/7/1856 - 7/1/1943

Which 11-letter person was born on 10/7/1856 and died on 7/1/1943? No doubt quite a few(!), but the most famous of these is probably the inventor and engineer, Nikola Tesla, a man of many obsessions!

  • $\begingroup$ Well done :) Everything looks good except a small typo at the end (birthyear) $\endgroup$ Jul 24, 2021 at 4:29
  • $\begingroup$ @Prim3numbah Ah yes, fixed now! $\endgroup$
    – Stiv
    Jul 24, 2021 at 7:15
  • 1
    $\begingroup$ ok this is genius i must say. hat tip! $\endgroup$ Jul 24, 2021 at 11:46

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