To apply your skills in the solving of a logic puzzle. We've reset back down to 4×4 grid sizes, while also incrementing the difficulty level a notch– the previous 4 puzzles were classified as “easy”, this and the following three will be classified as “medium” in terms of difficulty.

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.

It is a Presidential election year again, and the Iowa Caucuses are just a few weeks away! So of course every candidate on the ballot is in the state and on the campaign trail. The Sioux City Theatre had a different candidate booked to give a speech every night this past week. Using only the clues below, match each candidate to his or her political party, and determine when each gave their speech and how many people were in attendance.

1. The person whose speech brought in 2,600 attendees spoke 2 days after the Libertarian.
2. Daniel Stead, the person whose speech brought in 850 attendees, and the Independent are three different people.
3. Of the Independent and Conner Dawes, one spoke on January 17th and the other spoke in front of 2,250 attendees.
4. Conner Dawes didn't speak on January 16th.
5. The politician who spoke on January 16th was the Reformist.
6. The person who spoke on January 15th was either the speaker whose speech brought in 850 attendees or Ashley Dale.
7. Ashley Dale spoke in front of 2,600 attendees.

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.

             EATS
      +-----------
HEART | COHEIRESS
       -COCASO
        ======
          RKIHE
         -    A
          =====
          RKIHES
         -RROATC
          ======
           HKHOHS
          -HTTRAE
           ======
            HIHHR       

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 wpf4
Submitting discrete project "wpf4":

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