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30 kwi 2024 · How to Solve Hard Sudoku Puzzles. Download Article. Co-authored by Eric McClure Reviewed by Ashton Wu. Last Updated: April 30, 2024 Fact Checked. Sudokus are phenomenal brain teasers, but if you find yourself solving easier puzzles in a jiffy, you may have moved on to harder puzzles only to discover that they feel impossible!
Learn how to use x-wing and swordfish methods to solve the most difficult Sudoku puzzles using only logic and no guesswork. See examples, diagrams and explanations of these techniques and how to apply them to Super Fiendish Sudoku.
Learn how to use six advanced Sudoku strategies to solve hard puzzles by deduction. Find out how to apply X-Wing, Swordfish, Forcing Chains, XY-Wing, Unique Rectangle and Nishio methods with examples and tips.
Every Sudoku puzzle we provide comes with its step-by-step solution, such as the hard example shown below. The step-by-step shows one way to solve puzzle using only logical reasoning. Naturally each puzzle can be solved in many different ways, but every way leads to the same solution.
Learn how to solve extremely hard Sudoku puzzles by examples. A smart solver that can solve your puzzles step by step with explanations.
Learn how to solve Sudoku puzzles of different levels of difficulty with various techniques. From simple pencil marking and hidden pairs to advanced X-Wings and Swordfish, this article lists and explains the most useful strategies.
Improve your sudoku game with these tips and tricks for solving puzzles of different levels and variations. Learn how to use process of elimination, crosshatching, and other techniques to fill the grid with numbers.
