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how to solve hard sudoku without guessing By incorporating hidden singles, pairs and triples, X-Wing, Swordfish, and XY-Wing strategies, you'll be well-equipped to tackle even the most challenging Sudoku puzzles. large printable sudoku How to Start Playing Sudoku Obtain a Sudoku puzzle: You can find Sudoku puzzles in newspapers, magazines, or online. sudoku candidate identification Sudoku Books: While not free, many Sudoku books have a section with puzzles that you can print out or copy by hand. Hidden Pairs and Triples These are patterns where two or three numbers appear in the same row, column, or box, and can be easily identified by looking for duplicates. sudoku easy printable pdf
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