I bought a device to map a set of caves, but I don't really know how it works. I pressed a button at a few spots in some of the caves, and it just printed out this gibberish:

Square grid?

I'm sure you'll be able to interpret this data to map out the caves we visited.
(And find a hidden word in the process!)

  • 1
    $\begingroup$ I think the first entry should be [(1,1),0N,2E,2S,0W] - see my answer. Please can you check? $\endgroup$ – Rand al'Thor Mar 29 '15 at 12:51
  • $\begingroup$ @randal'thor of course you are correct, serves me right for writing puzzles at 10 at night... ^.^ Problem is fixed now. $\endgroup$ – Tryth Mar 29 '15 at 21:06
  • $\begingroup$ And my solution now also edited! $\endgroup$ – Rand al'Thor Mar 29 '15 at 21:48

Excellent question.

On a 27-by-5 grid, draw arrows in the indicated directions from the indicated points (2 units south and 2 units east from the point (1,1), 1 unit east and 1 unit west from the point (2,3), and so on). The lines thus drawn spell out letters.

Here's a (not very good) picture to demonstrate the solution:


The letters appearing are

S, P, E, L, U, ~n, ~K

giving the word


  • $\begingroup$ @IanMacDonald Thanks for editing! There was a mistake in the OP originally, and once it was fixed I corrected my picture but forgot to change "west" to "east" in the first spoilertag. $\endgroup$ – Rand al'Thor Apr 26 '15 at 12:06
  • $\begingroup$ I figured that was what happened. :) $\endgroup$ – Ian MacDonald Apr 26 '15 at 12:29

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