What's the word I'm looking for?

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Hint 1a:


Hint 1b:

H--------L R/V------L R

Hint 1c (I don't know if someone already figured this out but knowing this should be enough to solve the puzzle.)

Horizontal, vertical. The "R" in hint 1a and 1b stands for a word.

  • $\begingroup$ If I may ask, is 'Rexnology' a standard word? I couldn't find its meaning anywhere. $\endgroup$
    – Jarvis
    Aug 2, 2022 at 6:20
  • $\begingroup$ @Jarvis No it's not, I just made it up. $\endgroup$ Aug 2, 2022 at 8:49
  • 1
    $\begingroup$ I was fairly sure what R,U,D alludes to from the get-go, and Hint 1a was also clear. Still no idea what this is :) $\endgroup$ Aug 4, 2022 at 9:19
  • $\begingroup$ @LukasRotter Hmm I think I know where you're stuck.. Try to figure out what the title could possibly mean. That could help. I'll add another (most likely the last hint) in a couple of days if it's still unsolved. $\endgroup$ Aug 4, 2022 at 9:35
  • $\begingroup$ I think I figured out the title and still cannot make anything out of it. $\endgroup$
    – JLee
    Aug 4, 2022 at 9:46

1 Answer 1


You are looking for the word ...


The two shapes ...

... can be completed by reflecting them according to the given directions: the first shape is complemented by its reflections to the Right and Upwards. The second shape is complemented by its reflections Downwards. Note that for each shape, the thinly outlined circle is now completed. (The letter R in the hints means reflection.)

In a next step, we can overlay the two completed shapes so that the circles match. Now remove the circle and we get a familiar shape.

Three steps from two mystery symbols to the solution

The title ...

... is a blend of Rex and technology. Bluetooth is a technology for wireless data transfer. It is named after the Danish king Harald Bluetooth, whose runestone is the logo we've just assembled.

  • $\begingroup$ ersyrpgvba! abg ebgngvba. v srry qhzo $\endgroup$
    – JLee
    Aug 4, 2022 at 10:51
  • $\begingroup$ Tick is yours! Well done 👍 $\endgroup$ Aug 4, 2022 at 11:10

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