To apply your skills in the solving of a logic puzzle.

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 have 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.

I found this one enjoyably more challenging than last week's logic grid. Not annoyingly hard- just need to cross-check things, and be very aware of the indirect relationships that pop up.

The International Bigfoot Sighting Registry (IBSR) has recorded a number of unusual witnesses accounts this year from different parts of Caribou County. Using only the clues below, match each witness to the month and time of his or her sighting, and determine the location in which it occurred.

1. The 8:15 pm event took place 2 months before the 2:00 am sighting.
2. The 11:25 pm account wasn't at Juniper Springs.
3. Darrell's event happened at 12:30 am.
4. Stacey's account happened in March.
5. The event at Juniper Springs took place 1 month after the event at Seryl Forest.
6. Ethel's sighting didn't happen in July.
7. The July event wasn't at Laurel Grove.
8. Of Nina's sighting and Ethel's event, one took place at Viking Woods and the other happened at 11:25 pm.
9. The sighting at Viking Woods took place 1 month after the 2:00 am account.
10. Wanda's sighting and the sighting at Juniper Springs were different events.

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.

              ARTS
        +----------
  WITCH | SKETCHES
         -WITCH
          -----
          WTSASH
         -WASEWS
          ------
            RWTEE
           -KCHCE
            -----
            TTEECS
           -TAATTH
            ------ 
             AKIET

With the logic grids you put your logic skills to the test, with the word math you math skills. Here, we will explore various other types of puzzles, often combining both logic and math skills to solve, but also exercising different aspects of your deduction/induction skills.

Enter numbers into the blank spaces so that each row, column and 3×3 box contains the full sequence of numbers 1 to 9.

Top row:

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 wpf9
Submitting discrete project "wpf9":

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