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Re: Challenge

 On April 30, 2021, 11:11 a.m.

I seem to have eliminated all possibilities for T[0].

Please send me a private email and explain a bit more what you want to know. If I can't help, I'll b…

Re: Challenge

 On March 28, 2020, 10:18 p.m.

offenbar muss man den Schlüssel irgendwie "umkehren"/invertieren.

Ja, invertieren.


  • Man muss den Klartext bestimmen.
  • Aus dem Klartext en…
Re: Challenge

 On March 3, 2020, 10 p.m.

In january Mr. Sanborn published a new „last” clue: NORTHEAST at positions 26 through 34 (QQPRNGKSS).
The other two already known clues are BERLIN at pos…

Re: Challenge

 On Feb. 23, 2020, 7:34 p.m.

Thanks for the hints – we'll change that and accept both keys and both formats in the future. Sorry for any inconvenience.

Re: Challenge

 On Feb. 13, 2020, 7:23 p.m.

@be If so, can you also tell me how to initiate a PM on this site? Thanks

Hello – just use this post and click on PM or better on email. Best regards, be

Re: Challenge

 On Dec. 30, 2019, 9:45 a.m.

could I sent someone an pm for check my working?

Hi Miles. Yes, please send me a pm or an email via the forum with your latest solution and an explanation…

Re: Challenge

 On Nov. 23, 2019, 10:21 p.m.

But in the description of the challenge it has been nowhere mentioned, that it have to be exactly 100 of every kind of cipher.

This is not really true. Pa…

Re: Challenge

 On Nov. 23, 2019, 11:45 a.m.

In addition to my last post I want to make some more remarks.

Thanks for your constructive suggestions. We think about how to implement them.

One thing…

Re: Challenge

 On Nov. 7, 2019, 8:07 p.m.

PM sent.

Hi Alain, you did everything right besides the last word. Yes, it's "s" and not "b", but also consider to revert the letters of the last word (be…

Re: Challenge

 On Nov. 4, 2019, 7:46 p.m.

Hello everybody,
Same problem as Sgt. Pepper and rcll0891.
I submitted 2 solutions with the "s" and the "b" and nothing is accepted.

Alain, please s…

Re: Challenge

 On Oct. 23, 2019, 1:36 a.m.

Wem kann ich eine PM zu prüfen senden?

Bitte senden Sie mir eine PM, wie Sie vorgegangen sind und welche Lösungen Sie bisher einsandten, dann helfe ich ge…

Re: Challenge

 On July 30, 2019, 7:15 p.m.

works for me with building from sources (make) in ubuntu.
Post 11 in this thread got me there

I used the Win 32-bit executable in Ubuntu w…

Re: Challenge

 On July 30, 2019, 7:14 p.m.

Is it just coincidence that I find "an annoying change" in the first four lines of the first column?

What do you mean? Is this part of the plaintext you r…

Re: Challenge

 On July 30, 2019, 7:10 p.m.

Wo ist der Witz bei dieser Challenge? Da die Schlüssellänge bekannt ist und nur 2 ist, gibt es genau eine nicht-triviale Möglichkeit für den Schlüssel (12 w…

Re: Who cares about the spam in this forum ?!?

 On July 30, 2019, 7:04 p.m.

Thank you taxi orly very much ! [HTML_REMOVED]
Great job…

I want to report someone but I do not how to do it but if I do it it I will be s…

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