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The index page for all Programs on the site?

The DFF Play CD?

Zipped file DFF Play CD.zip contains  executable version of about  75 of the 200+ programs from the site, mostly those I particularly liked or thought would be of widest interest for non-programmers.  The file is rather large, about 20mb..

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Not a programmer (yet)?

 That's OK -  the executable version for any puzzle or  game you find here is available for download.  Just scroll down to the bottom of most any description page and you'll find a "Download executable" link. Downloaded programs are in "zipped" format to reduce size and may require an "unzipper" program unless you are running Win XP or later.  Here's a link to a free one. 

Check  out  the Most Popular  Downloads from DFF   (updated weekly)

First time visitor?

Take a look at the Introduction page to see what this site is about

Notes for Teachers

 

What's New

August 3, 2016: Here's a "Word Attribute Puzzle Solver" which uses predefined rules to apply predefined "letter sets" to a given set of phrases with unknown common characteristics.  The objective is to find for a rule/letter set combination which applies to all of those phrases and to a single phrase in a second list of solution candidates.  I peeked at the backside of this calendar page to get the solution and coded the appropriate rule, but the program might provide a platform for me to do better with future puzzles of this type.
 

 

July 20, 2016:  Whew!  I'm up and running on a new laptop after a three-week conversion effort.  New computer + New Operating System = Lots of learning opportunities!   The old faithful Dell Studio 17 decided it was time to retire, so action was required .  The upgrade story was originally posted here, but moved to this HP Envy page because it is rather long.

I did manage to get one project written and  posted today - Keypress Display Demo displays all character keys entered on the keyboard from any application.  A user had suggested it as a way to view password entry for older programs that do not have the option of viewing the keyed characters before submitting the password.

June 28, 2016:

 2 1/2  weeks of this month found us out west in Utah, Montana, and Wyoming  visiting five National Parks with a daughter and her family.  Seeing  the animals and geological wonders was nice, but the family time was even better.

Probably only time for one program this month;  this June 16 Mensa calendar puzzle was chosen because I couldn't solve it manually in the 5 minutes I allocate to these things.    The program Revolving Letters allows users to rotate columns to find a solution, or let the program do the grunt work and solve it for you.  Computers really shine at "grunt work"!
  

May 28, 2016:  A fix applied last month to our Cutlist program (See April 3, 2016 "What's New" post), introduced a problem which prevented the printing of user generated solution diagrams.   Cutlist Version 4.04 was posted today to correct this problem.

May 27, 2016:  May has been a busy month - one granddaughter earned her Dr. Pharmacy degree and another got married.  We travelled to attend both.  We're proud of Kristen and happy for Sarah.  Coincidentally, if things go as planned, we will be attending Kristen's wedding and Sarah's graduation as a Chem. Engineer next spring!  

The intervening days were spent catching up with mowing, garden care, tree trimming, etc.  Evenings allowed me to complete the DTMF (Touch-tone) Decoder Test program.  Here's a picture of the device put together by the family Electrical  Engineer (my son) which listens for tones and sends the  decoded digits to my program for display.  Probably not of interest for the majority of viewers, but if it is, visit the link for more details. 
         

 

 

  

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