PacSci-Doku: "Secret Messages"

By Dennis Schatz - Senior Advisor

Do you Sudoku? It's one of the hottest number games around! Well, here's a twist we think you'll love. We call it PacSci-Doku, can you guess why? Here's how it works. Instead of filling in the blanks with numbers, use letters. Hidden in one of the columns or rows is the answer to a science question. The question in this edition is:

What machine was used to send secret messages during World War II?

To find the answer, complete this PacSci-Doku using the following nine letters:

E  I  A  T  M  G  N  P  S

Each row and column in the grid below has to have only one of each of these letters. Each of the 3 x 3 mini-squares in the 9 x 9 square also needs to have only one of each letter.

pacsci-doku-secret-messages

Puzzle Difficulty=Medium

Click the link below for the solution to this puzzle as well as more information on this edition's topic. The best way to keep up with PacSci-Doku, and everything happening at Pacific Science Center, is to subscribe to our free weekly newsletter. Just use the sign-up form at the bottom of this page.

CLICK FOR THE SOLUTION!