Several months ago my local newspaper ran a fluff story about this puzzle fad that was going on in the UK. It involved a square that was divided into nine smaller squares. Each square had nine spaces. The object was to fit the numbers 1 through 9 in each square and horizontal/vertical line. It’s just the sort of puzzle to occupy my currently bounteous time–but I can’t remember the name! I think it started with a Q? So far Googling has been of little help…sigh.
This actually comes from Japan, su = number and doku = solve so sudoku is to solve a number (puzzle). I found the puzzle from a UK newspaper section in the Yomiuri (English) newspaper and got hooked. Fortunately, there quite a few sudoku books available here.