Word: sudoku
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Dates: during 2005-2005
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...that more than 1 in 4 Britons hasn't even started yet. So it could be mayhem in the shops if they're after Roboraptors or the Star Wars Darth Vader Voice Changer Mask, top toys in the Deloitte survey. Apple's new iPod nano is a favorite, too. Sudoku books continue their spectacular run and, for a truly harmonious holiday season, a new boxed set of Mozart's collected works by Brilliant Classics is retailing for less than $118. The 170-CD set is the best seller on Amazon.com in France, where it's beating Madonna's latest album...
...Sudoku is a number game based on a nine-by-nine grid. The object of the puzzle is to fill each column, row, and three-by-three square using the numbers one through nine only once...
Zakharevich’s program, featured on her website (www.people.harvard.edu/~zakharev), has two parts. The part that a user sees is a display of white boxes, controlled by a Common Gateway Interface (CGI) script, that organizes numbers in a sudoku grid. Another program, written in a computer language called Objective Categorical Abstract Machine Language (OCaml), does the actual number evaluation behind the scenes...
Zakharevich said she first encountered sudoku in a book that she purchased on a whim. After completing only two or three puzzles, however, she said they had already begun to lose their appeal. She recalls repeatedly following the same process to obtain answers...
...recalled most of the time being spent not on the number-evaluation component itself but on manipulating the CGI script which controls the sudoku display, making it more user-friendly...