To apply your skills in the solving of a logic puzzle. We're now back to 5×5 grid sizes, while also incrementing the difficulty level a notch– “medium”.

What you'll likely encounter is that there will be more indirect clues (ie knocking something out directly from a clue in one area, which can have secondary elimination moves elsewhere on the grid). Some of the existing puzzles has aspects like this, but may not have as heavily utilized them as central means to solving the puzzle.

Remember, keeping track of what has been eliminated is just as important as tracking what has been identified. A lot of trouble or dead ends emerged when people were not keeping full inventory on grid box eliminations.

Angel Investors Inc. regularly makes million-dollar investments in up-and-coming tech startup companies. Using only the clues below, match their latest investments to each company, and determine the founder and product focus of each.

1. Madinkz.com received $1,000,000.
2. The five businesses are the business that received the $4,000,000 investment, Byxby.com, the business that sells cameras, Madinkz.com and the business started by Vicky Velez.
3. The startup that sells robots is either the startup started by Betty Becker or Zetafish.com.
4. Madinkz.com received 1 million dollars less than the business that sells video games.
5. The startup that received the $4,000,000 investment wasn't founded by Addie Abrams.
6. Of the business that sells cameras and the startup that received the $4,000,000 investment, one is Zetafish.com and the other was started by Pat Padilla.
7. The startup that received the $1,000,000 investment was started by Fred Frost.
8. Of the startup started by Addie Abrams and Protecha.com, one sells sports gear and the other received $5,000,000.

Logic grids are not the only form of logic puzzle; here is another one that relies heavily on logic and reasoning in order to sift through.

A word math puzzle is one where the numbers 0-9 have been replaced with various letters of the alphabet; it is your task to determine what number each letter maps to, and report that to me in the project submission.

For this sort of problem, you will likely want to take notes; all the various little tests you concoct to prove or disprove some relationship. This may also take a bit longer and seem more overwhelming, but really, it is just longhand math :) Remember to attack the problem in pieces, and not head-on all-at-once.

Practice some similar math problems to derive patterns so that the seemingly unfamiliar letters performing math can start to make more sense.

             ACE
      +---------
AGING | ENHANCER
       -RCRAIR
        ------
         TRMAME
        -TINCIN
         ------
          CMHAER
         -CETEIT
          ------
           IMIRG

To submit this weekly puzzle, simply run the submit line below; a submit-time questionnaire will collect your puzzle results.

When you have completed work on the project, and are ready to submit, you would do the following:

lab46:~/src/discrete/wpf$ submit discrete wpf5
Submitting discrete project "wpf5":

SUCCESSFULLY SUBMITTED
lab46:~/src/discrete/wpf$