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Re: Challenge

 On Sept. 24, 2021, 11:58 a.m.

if I'm not mistaken you once complained about a challenge that entering the correct solution was more difficult than solving the challenge itself. That seem…

Re: Challenge

 On May 15, 2021, 8:34 a.m.

Hello Eric,
your format of solution is right, probably some misspellings? Send me your solution in PM I will check it.

Re: Challenge

 On April 16, 2021, 12:42 p.m.

hoffentlich sind hier noch alle gesund [HTML_REMOVED]

das format für die lösung scheint mir hier falsch zu sein bzw. es widerspricht sich. den klart…

Re: Challenge

 On April 16, 2021, 12:33 p.m.

There is a "little trap" in the first question. So I guess this is where you might have made a mistake. Check whether each of your possible plaintexts …

Re: Challenge

 On Feb. 17, 2021, 7:14 p.m.

Am I supposed to follow the route in the 3rd graphic file, and then fill in what I get into a new grid? If so, I am getting nonsense.



Re: Challenge

 On Nov. 7, 2020, 10:45 a.m.

Ahhh… Because the Solution contains No duplicate letters
(and I don't think that is too much of a clue…)
the "A CAR" example is unnecessary f…

Re: Challenge

 On Nov. 7, 2020, midnight

Unless my algorithm is incorrect, why not let 4539620 = CAR instead
of the therefore unnecessarily inflated 168919260200?

"CAR" is not the only example…

Re: Challenge

 On Nov. 6, 2020, 11:53 p.m.

The sequence is so "real life" and so "natural" that
OEIS is not aware of it…

  • It is not being in OEIS what makes a sequence natural or real…
Re: Challenge

 On June 30, 2020, 10:25 p.m.

…Once you found out the patterns involved…

I think I found a logical pattern, the problem is that for few letters it does not hold. So maybe my pattern is…

Re: Challenge

 On June 28, 2020, 11:37 a.m.

So finally I solved it but…

Am I the only one who does not understand the logic?

I have not used any matrices to solve some system of equations.
I have …

Re: Challenge

 On June 25, 2020, 9:58 p.m.

@Victor: Solving the challenge was straightforward, I think there are no errors. The solution format as specified in the PDF also seems to be ok, my solutio…

Re: Challenge

 On June 25, 2020, 11:44 a.m.

Otherwise everything OK with the challenge?
I see some guys have solved the challenge… but was everything correct or did they had to overcome some errors in t…

Re: Challenge

 On June 9, 2020, 11 p.m.

Finally solved it!!! It took me a very very long time to figure this challenge out. But I did it all with pen&paper and Word&Excel. So it is indeed possible…

Re: Challenge

 On March 30, 2020, 12:07 p.m.

Lies! All lies!

Using the absolutely correctly decrypted passphrase
with the absolutely correct use of upper- and lower-case
letters in the com…

Re: Challenge

 On Nov. 17, 2019, 9:46 p.m.

I do not agree … that the faulty Vigenère encryption makes the challenge more difficult to solve

The difficulty in this case depends on what type of solve…

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