Dr. Casey’s Cerebral Aerobics

Here is a collection of a few logic puzzles to give your brain a bit of exercise. Our first one is called **Dr. Casey's Alphanumeric Conundrum.** In this puzzle, a simple addition problem has been "coded": The numbers have been replaced with letters. Your job is to guess what letters represent what numbers. You do this by clicking on the grid in those squares that indicate combinations that are NOT valid. For example, if you determine 'a' is 2, then you would click on every number in the 'a' column EXCEPT 2. This may sound a little backwards, but you will find you solve the problem by eliminating combinations--you may determine that 'a' is NOT odd, and then figure out 'a' is less than 5 before you get its actual value. A perfect score is 100. Here's a hint--the top row of digits are 'carry' digits, and must be 1 or 0.

Our second puzzle is called **Dr. Casey's Discombobulating Polka Dots**. The object is to get all the dots to be white. You do this by clicking on individual dots. Each dot is connected to some of the other dots and when you click on any one of the group they all toggle. The trick is to figure out which groups to toggle to get them all white. (Play with it a little.) You can move dots around by dragging them. (Try it and see what visual effects you get.) Click SOLVE to have the computer solve the puzzle for you. The 3D option works only if you have red/blue 3D glasses, such as the ones available from Knowledge Adventure for their 3D dinosaur program.

- Kevin's Resume
- A poem for Gopher
- Pictures of us
- 3-D Conic Sections (old version)
- dogs
- Dad's mini-bio
- Palindromes by Jon
- Poetry Corner
- iPhone Apps
- DHS Class of '76 Names & Anagrams
- Kaleidoscope demo (no file loading or saving)
- Kaleidoscope (with file loading and saving)
- Three Letter Words I wrote this for my grandkids. Click a letter to make a new word.
- 3D molecules 3D stuff, you need red/blue glasses to view
- Completing the Square Shows how extending AWT and Swing classes can have cool results!
- Periodic Table The standard periodic table crams too much information into a small package. This program is a pleasant alternate.
- Spiro-graph A goofy take on a classic toy.

Last Updated July 22, 2005

Kevin Neelands,kcn32605@yahoo.com