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2020-07-12 23:30 Arno  
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another result from a funny experiment! :-D  
as usual, same rng and seed(10). what was the experiment?

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2020-07-12 23:33 DarkStoorM  
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It looks so obvious! I think I got it, but I'll wait for some eventual hints :D

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2020-07-13 00:19 nesdori  
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i got it!  
  
 Arno , but.. i wonder why did you experiment with such thing :) maybe my wording that what's happening is different to yours :)  
  
 darkstoorm , is your theory something you can't check? i could check mine easily and i can contruct the same cave.

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2020-07-13 00:42 DarkStoorM  
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I just have a theory,  nesdori  :D I can see the second part, but I haven't tried to generate it yet. I can try it in a while, but I don't think I will get anywhere

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2020-07-13 11:10 dustin  
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i'm confused ;d the first row is original but the rest is completely different. also, the three areas seperated by the walls are strikingly similar...

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2020-07-13 11:24 dustin  
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also, the fact that the cave is silent, meaning there's never space below a \ or |, is very unlikely to be a mere conicidence!furthermore, a | below a \ is also never seen.  
  
all this makes me think into a certain direction, but i haven't got anything concrete yet...

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2020-07-13 11:27 nesdori  
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 dustin , i'm surprised that your eagle eyes didn't see this in 5 mins :) maybe it's because of rockford. but luckily there are rows without rockford! :)

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2020-07-13 12:51 Arno  
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i'll give an indirect hint using a keyboard shift like  dustin  did before:  
  
yjr asdy qpdy pm yjr gptiz yjtrsf zsu hobr upi sm ofrs!  
  
:-)

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2020-07-13 16:55 DarkStoorM  
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Interesting stuff!  
  
About that, what I noticed is that not only the pattern 'od tr[rsyrf sgyrt yjr 84tf vuv;r', but when you look at the next row, the values below it are always higher by 4, 3, 4, 4, 4[...] (speaking of the same color you highlighted). The longest chain of 6 in a column: 4, 3, 4, 4, 4, 4.  
  
My initial solution was that   
yep gotdy [styd yjsy str dr[stsyrf nu yjr es;; str tr[rsyrf

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2020-07-13 18:11 nesdori  
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 Arno , ok now i understand why you ended up experimenting this :) i actually thought that this is based on some seed research instead of just trying things out but i didn't read the forum until now :)

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2020-07-13 22:33 dustin  
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hmmmmm. actually i read the very good research post already on sunday, but somehow the right idea still hasn't hit me. i think there must be something that changes row by row. perhaps every random number is influenced by the 40th last random number... but this seems too complicated to me. for now, i'm too tired anyway. very challenging! ;d

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2020-07-13 23:16 Arno  
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ok,  nesdori  got it, it seems darktoorm too, and  dustin  you are close! :-D  
  
i'm currently writing some additional analysis on these phenomena, but unable to finish it today. so tomorrow i will share that info and reveal the solution! :-)

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2020-07-14 01:52 nesdori  
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 Arno , sounds interesting! i assume the rows on that article will be 73 characters long to nicely sync some distinct words?-)

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2020-07-14 21:29 dustin  
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ok, ig ot it - pressing my nose on it was enough,  nesdori  ;d   
nice one! i don't know why i didn't get the idea earlier - it doesn't seem too far-fetched now. ;d

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2020-07-14 21:34 Arno  
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ok, here's how i constructed this map.  
  
for the first line, i drew 40 random numbers and filled the line according to the usual filling rules for bd1 cave a. (that's why the first line looks exactly the same as in the original.) next, i drew 33 random numbers without using them.  
for all other lines i repeated exactly the same procedure.  
  
because seed2 contains a cyle of 73, each line is based on seed1 values resulting from the same series of 40 seed2 values. that's why we see some non-exact similarities in the patterns showing up on the map.  
  
this phenomenon is now discussed in more detail in the last 2 posts on the forum thread:  
<a href="http://www.boulderdash.nl/forum/viewtopic.php?p=6422#6422" target="external">http://www.boulderdash.nl/forum/viewtopic.php?p=6422#6422</a>  
  
:-)