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In this article, we will delve into the world of NYT hard Sudoku, explore its unique characteristics, and provide valuable tips to help you master this enigmatic puzzle. extremely hard sudoku best free sudoku app without ads iphone Swordfish Strategy Similar to the X-Wing strategy, the Swordfish technique is used when there are four or more identical numbers in two intersecting rows or columns. Title: Effective Tricks for Solving Hard Sudoku Puzzles Introduction: Sudoku is a popular puzzle game that challenges your logical thinking and problem-solving skills. sudoku with diagonals

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