by Dave Kellam

Sudoku Primer

People seem to be searching for information related to the puzzle game called Sodoku, so here we go. The game (officially known as Sudoku) was first popularised by Japan in 1986, but in the past few months it’s been appearing in many newspapers around the globe. The Sodoku surge is primarily the responsibility of Wayne Gould, who wrote a computer program that allows for the easy creation of puzzle boards.

The puzzle itself is relatively simple; the common format consists of a 9×9 grid, that’s further sub-divided into nine 3×3 grids. The object is to fill each column, row and 3×3 grid with the numbers one through nine (other characters or symbols can be used) without any repeats. The game’s difficulty lies in the initial board configuration — both the quantity and frequency of the given numbers. True Sodoku puzzles have only one unique solution per puzzle.

Further Links & Reading:

That’s about it for now. The next thing up will be cryptic crosswords — I’ve been figuring out how to do them over the last week or two. Alanah, Will and I managed to finish off the Globe’s Canada Day cryptic puzzle (it was a little on the intense side of things).


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