The Sudoku Essentials Blog is my mini-journal about Sudoku. It…

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Killer Sudoku Rules

Killer sudoku is considered one of the most common and well-known sudoku variants.  At first glance, a killer sudoku puzzle can appear scary due to the dashed lines and no

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Programming Sudoku

How to Program Sudoku Programming Sudoku is a challenge for computer programmers. Could a little advice help you in creating your next masterpiece? Several programmers have contacted me in the

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Free Sudoku Worksheet

Download this free Sudoku worksheet to help you solve all of your Sudoku puzzles. This handy Sudoku Excel template will allow you to enter and remove candidates for each cell.  

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Medium Sudoku Puzzles

You have come to the preferred source of medium Sudoku puzzles. Sudoku Essentials assures you of quality printable Sudoku puzzles in PDF format. My large print Sudoku puzzles are handcrafted

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