It’s a logic puzzle that involves placing numbers or letters in a grid such that you get no repeating characters within a given row, column, or highlighted grid.
I got a book of puzzles for Christmas, and things finally slowed down enough I could check it out.
That there would be a painstaking process of editorial control, whereby the selected puzzles would represent the very essence of Sudoku as originally intended — and that the puzzles therein would go through a vetting round to earn their stripes as “Easy,” “Middle,” “Hard” or the pinnacle: “Devious.”
You might also assume that the publishers of “SUdOkU Fever” would choose to properly market their product with a sample puzzle right there on the cover. A puzzle that was chosen to establish the first pillar of Customer Satisfaction – that all-important initiative to properly establish and manage expectations.
A Sudoku book with a crossword or a word-find on the front, for example, would be a colossal failure, because not only would it not engage those seeking Sudoku, it would be mistakenly purchased by one seeking a letter-based, verbal puzzle.
In fact – since so many of my readers here have a more decided verbal orientation, maybe a little primer in creating a Sudoku might be in order.
You create a nine-by-nine grid where there are no repeating numbers in columns, rows or the smaller 3×3 grids. Then you turn most of the numbers into blanks. But for the sake of all that is holy, you start with a working grid. You don’t begin with a broken grid and expect it to suddenly blossom into a working puzzle.
And if you do have a broken puzzle, well, I suppose it’s okay if it winds up on the cover, just as long as that error isn’t too obvious — like having two of the same number so obviously in the same frame.