![]() ![]() So while you may be focusing on a square, you’ll also have to remember other squares are affected by your choices. While solving the sudoku puzzle you can only use each number one time in the square, column, and row.Ĭolumns and rows are not limited by the thicker boundaries of the square (also sometimes called a region.) They run from the top of the puzzle to the bottom of the puzzle (as pictured in blue above). The objective of Sudoku is to fill a 9x9 grid made of squares (shown above circled in blue) so that each row, each column, and each full 9x9 square use the numbers 1-9. No one becomes a sudoku genius overnight but these strategies will definitely help. It’s all about knowing how to work the game and enjoying it in the process. You might just be able to solve a higher level of puzzle by the time you’re done reading. (It was invented in 1979 by Howard Garns who based it off of similar games dating back to the 18th century in case you’re curious.)īefore you pick up your pencil or open your app, take some time to read about the strategies and tips here. Maybe you’ve asked yourself when sudoku took over the world as a boredom stopper. You’re about to get a deep dive into the world of sudoku, the strategies, and the answers to questions you may have wondered at some point. If you’re hoping to up your game and get some well-deserved pats on the back from yourself you’re in good hands here. It just takes some practice and research to figure out what the strategies are and how they work. Just like with solitaire or mahjong there are strategies out there that you can use to help increase your chances of solving the sudoku puzzle. No matter what level of Sudoku you’re at, you’ve most likely wondered if there are strategies you can use to improve your game. ![]() Maybe you erase and start over, or maybe you just give up. If you’ve played you’ve definitely gotten to the dreaded point where you don’t know how to solve the puzzle. This math-based puzzle has taken the world by storm and the vast majority of people are thrilled about that. Basically anywhere someone might have some downtime there’s probably someone playing sudoku. People play it online, they play it in newspapers, and they play it while they’re bored on an airplane. Thus, you can eliminate the remaining candidates that share the cells with those numbers.Sudoku has become a very ubiquitous game in our world. If within the group you have two identical pairs whose digits are not candidates in any other cell of that group, then those cells will be their final position even if the solution is still unknown. Hidden pairs occur within a group and, once again, they are hidden because they share their cells with other candidates. This allows you to eliminate those candidates from any other possibility within that row or column. At this point, you can be certain of their overall position in the grid, even if you cannot yet tell the final position of each digit. When you have the same pair of candidates in a single row or column you have found a naked pair. With the pairs techniques, you can only eliminate candidates. It is called “hidden” because other candidates create noise making it harder to spot. In this case, you can have several candidates per cell, but one digit has only a single possibility within that row, column or group. ![]() Hidden singles follow the same logic but backward. In that case, you have found the solution for that cell, regardless if that digit is also a candidate for other blocks within the same row, column or group. You have a naked single when you find one block with one single possible candidate. In Sudoku jargon these are called naked single, hidden single, naked pair and hidden pair and they all require you to note down every single candidate for each cell in order to apply them. There are 4 main techniques to achieve this. They can be used to either find the solution for a cell or to eliminate candidates and remove unnecessary information from the grid. The techniques to solve medium Sudoku levels are all based on pencil notes. Sifting through the grid will no longer be enough and notes and tactics become more important. However, there will be less allocated digits at the start of the game, making it more challenging to find the correct position of the missing ones. ![]() The rules remain unchanged at this level as you still must fill the cells with numbers from 1 to 9 without any repetitions per column, row or group. Logic will still prevail to solve these puzzles, but you must work harder to reach your goal. Medium Sudoku Puzzles are ideal for intermediates or beginners who are craving for more after the easy levels stop being a challenge. ![]()
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