What Defines a True Sudoku Puzzle?For a puzzle to be a true Sudoku puzzle, it can have one (and only one) solution. There can be no ambiguity in Sudoku. Each number has a single location it must reside inOtherwise, the player is forced to guess which location to choose thus changing the puzzle into a game of chance.Order your copy today, sharpen your pencils and get ready for challenging fun!