Week 16 - Solution: SQ Sudoku
You probably already knew that Sudoku is a logic-based numbers game, and you may have done it before. But did you know that Sudoku--which got extremely popular in the U.S. in 2004--is based on an early mathematical concept designed in 1782 or 1783 by Swiss Mathematician, Leonhard Euler? About a century later, a version of it became popular in France, but it wasn't until 1979 that such a puzzle, then called "Number Place" was published in New York City by Dell Pencil Puzzles and Word Games magazine.
So why is it called "Sudoku," which sounds like a Japanese name???
In the mid-1980s, the game started to become popular in Japan, and was described by the expression “Sūji wa dokushin ni kagiru” meaning, “the digits are limited to one occurrence.” That expression was shortened to "Sudoku," which is how we know the game worldwide now!
Of course, no one except Silverquicken has added the special twist of ALSO having two letters that must adhere to the same rules as the 3x3 matrices, but we like to make things extra fun and special. :)
Here's the solution. Great work this week!