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  • Evil Sudoku Puzzle header pic

    What Is Evil Sudoku

    Well, Evil Sudoku is the hardest level of number puzzles and it is also known to others by the names Extreme Sudoku or Expert Sudoku.

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  • locked Candidates sudoku demonstration

    "Locked Candidates" Sudoku solving technique explained:

    There are two types of locked candidates techniques. Both techniques work in the form of elimination but each one is...

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  • sudoku boards demonstrating full house

    "Full House" Sudoku solving technique explained

    ingles are the most basic and easy-to-understand techniques in solving sudoku puzzles. The Full House is...

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  • sudoku showing the naked single technique

    "Naked Single" Sudoku solving technique explained:

    A naked single means that in a specific cell only one number remains possible. This applies...

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  • hidden single sudoku example

    "Hidden Single" Sudoku solving technique explained:

    Hidden Single means that for a given digit and house only one cell is left to place that value. The cell itself has...

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