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View:  Topic list, Topic summary Topics 1 - 10 of 40576  Older »
Description: Puzzles, problems, and quizzes.
 

BrainBashers: June 2012 Common Answers 
  Hi, PLEASE DO NOT POST OR DISCUSS ANSWERS IN THIS NEWSGROUP. Please enter via the site, however I will accept answers via email. If you create a UserID, and add a league called rec.puzzles, we'll be able to easily see how rec.puzzles regulars compare each month (see [link] for league info).... more »
By Kevin Stone  - Jun 1 - 1 new of 1 message    

Missouri State University Problem Corner 
  Three new problems have been posted at [link]
By Les  - May 31 - 1 new of 1 message    

What is it? Set 443 
  I need some help with the first and last items in this set: [link] Rob
By Rob H.  - May 31 - 23 new of 23 messages    

Enigma 1694 - The town clock prank 
  Enigma 1694 - The town clock prank New Scientist magazine, 21 April 2012. By Ian Kay. Our town clock has a standard 12-hour face, divided into 60 minute marks. The hands do not move smoothly: the minute hand moves sharply on to the next minute mark at the end of each minute, and the hour hand moves... more »
By Chappy  - May 30 - 2 new of 2 messages    

Enigma 1693 - Inseparable 
  Enigma 1693 - Inseparable New Scientist magazine, 14 April 2012. By Richard England. Albion, Borough, City, Rangers and United have staged a tournament in which each team played each of the others once. No two matches had the same score, and no team scored more than three goals in any match. Each played two home... more »
By Chappy  - May 24 - 2 new of 2 messages    

What is it? Set 442 
  This week's set has been posted: [link] Rob
By Rob H.  - May 24 - 31 new of 31 messages    

Selfrefering sentencies embedding selrefering sentences, etc. 
  Hello Rec.puzzlers (reposted from SeqFans mailing list as I've received not one single answer);, a friend of mine, Jean-Luc Piedanna, has discovered an amazing sequence for the French language. Here is the link (in French) -- and below, a short explanation (I hope to be clear): [link]... more »
By ericangelini...@gmail.com  - May 22 - 3 new of 3 messages    

FAA Certified & Approved AWOS Death Trap 
  And now Belfort Instrument Company (dba DigiWx AWOS, Gamma Scientific, UDT Instruments, Advanced Retro, RoadVista, KR Acquisition Corporation) finds itself in United States Bankruptcy Court as evidenced by: [link] Belfort Instrument Company is selling to a known terrorist country as... more »
By nob...@replay.com  - May 21 - 1 new of 1 message    

What is it? Set 441 
  I need some help with the second last item in this week's set: [link] Rob
By Rob H.  - May 17 - 43 new of 43 messages    

Enigma 1692 - Key factors 
  Enigma 1692 - Key factors New Scientist magazine, 07 April 2012. By Susan Denham. Clever logic should enable you to find the nine-figure number that I have in mind. It consists of the digits 1 to 9 in some order, and in the number each digit is next to another that differs from it by one.... more »
By Chappy  - May 16 - 3 new of 3 messages    

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