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 in.
Otherwise, the player is forced to guess which location to choose thus changing the puzzle into a game of chance.
Sudoku puzzles are fun and engaging, while providing your brain with a little stimulation!
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