Sudoku puzzles: Gaining popularity in the US
Wednesday, May 31st, 2006Sudoku is a logic-based puzzle where one enters a numerical digit from 1 through 9 in each cell of a 9X9 grid. Although the first sudoku puzzle was published in the U.S., it did not attain international popularity until 2005 (Wow!). Solving sudoku puzzles involves a […]