Persistence: Sudoku can be a time-consuming and sometimes frustrating activity, so players who are persistent and able to stay focused and motivated even when facing challenges may have an advantage.

While it's totally fine to play sudoku intuitively on the easy levels, evil sudoku requires the knowledge of some strategies. Here is the most popular one for solving sudoku on the evil level. This puzzle comes with 17 hints to help you solve the game. But using a hint will increase your final time, so use them wisely. The ultimate goal is to solve the puzzle with as few hints and as little time as possible. Playing sudoku evil online has a lot of advantages. While solving sudoku, your brain exercises logic, learns to make decisions, and puts your memory to the test. Regularly playing evil sudoku is a good method of improving your concentration. Play 1 or 2 evil sudoku games every day and you will not have any problems with losing focus while doing important things. Start with the easiest squares: Begin by filling in the squares that have the fewest possible options. This will help you get a foothold in the puzzle and make it easier to solve the more difficult squares later on.

How to solve Sudoku Evil?

Tip 2: Break the grid up visually into 3 columns and 3 rows. Each large column will have 3, 3×3 grids and each row will have 3, 3×3 grids. Now, look for columns or grids that have 2 of the same number. Logically, there must be a 3rd copy of the same number in the only remaining 9-cell section. Look at each of the remaining 9 positions and see if you can find the location of the missing number.

The level of difficulty depends on how many numbers are already shown in the cells: the more numbers, the easier the level. What You Get from Printable Sudoku Although both number puzzles share a lot of similarities, there’s also a major difference – amount of arithmetics involved. Social interaction: Some online sudoku platforms offer social features that allow you to connect with other players and compete against each other or work together to solve puzzles. This can be a fun and engaging way to play sudoku and interact with others who share a similar interest. Easy level printable Sudoku puzzles are perfect for beginners. They contain more numbers on the playing field than medium or hard levels to help you get started. Certainly, knowing that the smallest Sudoku puzzles have 17 clues is not in itself important. But the immense popularity of Sudoku meant that this question was popularised in a way that many similar questions have never been, and so it took on a special role as a “challenge question” testing the limits of human knowledge.

Even though evil sudoku is an extremely difficult game level, many experienced players find it the best way for brain training and developing mental skills. How to solve Sudoku Evil? XY-Wing strategy is an advanced technique for eliminating candidates. Let’s review it with an example. Let’s say, there are 3 different cells with exactly 2 candidates (notes) each that are related to each other. The cell in the center is called the pivot. The two others are called the pincers. Each of these cells can include only one of 3 digits, named X, Y, Z. It means that any 3 digits can replace these letters. This makes the 17-hint Sudoku puzzle extremely challenging because there are so few clues to start with. The player must use advanced techniques such as X-wing, Swordfish, XY-wing, and XYZ-wing to solve the puzzle, which requires a high level of skill and patience. It’s a problem that has many other applications – any situation in which a small set of resources must be allocated while still ensuring that all needs are met by at least one of the selected resources (i.e. “hit”) can be modelled as a hitting set problem.

Killer Sudoku is a fun twist on the classic sudoku for those of you seeking something new and challenging. It’s also known by such names as sumdoku, addoku and sumoku puzzle but in a nutshell it’s pretty much the same number puzzle. What’s the difference between Sudoku and Killer Sudoku? An “unavoidable set” in a completed Sudoku grid is a subset of the clues whose entries can be rearranged to leave another valid completed Sudoku grid. For a puzzle to be uniquely completable, it must contain at least one entry from every unavoidable set. Evil level printable Sudoku puzzles are made to push even the most seasoned Sudoku players to their limits. Other people started to send me their 17-clue puzzles and I added any new ones to the list until, after a few years, I had collected more than 49,000 different 17-clue Sudoku puzzles. In this App, you can test your Sudoku solving skills on Sudokus with just 17 starting values. 17 is the minimum number of starting values required for a unique solution!Can you solve the hardest Sudoku puzzle on the internet? Challenge yourself with Expert Gold Level 20 Sudoku 9x9 with 17 hints on Sudoku99. Test your logical skills and have fun playing Sudoku. By this time, new ones were few and far between, and I was convinced we had found almost all of the 17-clue puzzles. I was also convinced there was no 16-clue puzzle. I thought that demonstrating this would either require some new theoretical insight or clever programming combined with massive computational power, or both. Printable Sudoku puzzles are perfect for passing the time while traveling, waiting for an appointment, or taking a break from screen time. By printing Sudoku puzzles, you can reduce the amount of screen time you're exposed to and still enjoy the puzzle-solving experience.