Diagonal Jigsaw Sudoku: A Fun and Challenging Puzzle Game
If you are looking for a new way to exercise your brain and have fun at the same time, you might want to try diagonal jigsaw sudoku. This is a variation of the popular number puzzle game that adds a twist to the classic sudoku rules. In this article, we will explain what diagonal jigsaw sudoku is, how to play it, why you should play it, and where you can find free diagonal jigsaw sudoku puzzles to download or play online.
What is diagonal jigsaw sudoku?
Diagonal jigsaw sudoku is a type of sudoku that combines two features: irregular shapes and diagonal constraints. Sudoku is a logic-based puzzle game that involves filling a 9x9 grid with numbers from 1 to 9, following some simple rules. The grid is divided into nine 3x3 subgrids, called regions, blocks, or boxes. The basic rules of sudoku are:
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Each row must contain all the numbers from 1 to 9.
Each column must contain all the numbers from 1 to 9.
Each region must contain all the numbers from 1 to 9.
No number can be repeated in any row, column, or region.
Diagonal jigsaw sudoku adds two more rules to the standard sudoku:
The regions are not square, but irregular jigsaw-like shapes. Each region still has nine cells, but they can have different forms and sizes.
The two main diagonals of the grid, from the top left corner to the bottom right corner and from the top right corner to the bottom left corner, must also contain all the numbers from 1 to 9. No number can be repeated in any diagonal.
Diagonal jigsaw sudoku is also known as irregular sudoku, nonomino sudoku, or geometric sudoku. It is a fun and challenging variation of sudoku that requires more logic and attention than the regular version.
How to play diagonal jigsaw sudoku
Basic rules
To play diagonal jigsaw sudoku, you need a pencil and an eraser, or a computer or a mobile device with an app or a website that offers diagonal jigsaw sudoku puzzles. You will also need a puzzle to solve, which usually comes with some numbers already filled in the grid. These are called clues or givens, and they help you start the puzzle. Your goal is to fill in the rest of the grid with numbers from 1 to 9, following the rules of diagonal jigsaw sudoku.
Basic strategies
To solve a diagonal jigsaw sudoku puzzle, you need to use logic and deduction. There are some basic strategies that can help you find the correct numbers for each cell. Here are some of them:
Write the possible numbers inside each cell in pencil. Start with any empty cell, and scan the row, column, region, and diagonal that the cell belongs to. See which numbers are already there, and eliminate them from the possible candidates for that cell. Write any remaining possible numbers inside the cell in pencil. Do this for every other cell in the puzzle. If a cell has only one possible number, write it in pen or highlight it.
Fill in cells with only one possible number. Scan through your puzzle and look for cells where you have only one possible number. Fill in that number in pen or highlight it. This will help you eliminate some candidates from other cells and create more opportunities to fill in more numbers.
Look for naked singles, pairs, triples, and quads. These are groups of cells in the same row, column, region, or diagonal that have the same number of possible candidates as the number of cells. For example, a naked single is a cell that has only one possible candidate. A naked pair is a pair of cells that have only two possible candidates, and they are the same for both cells. A naked triple is a group of three cells that have only three possible candidates, and they are the same for all three cells. A naked quad is a group of four cells that have only four possible candidates, and they are the same for all four cells. When you find a naked group, you can eliminate those candidates from any other cell in the same row, column, region, or diagonal.
Look for hidden singles, pairs, triples, and quads. These are groups of cells in the same row, column, region, or diagonal that have a unique candidate among them. For example, a hidden single is a cell that has a candidate that does not appear in any other cell in the same row, column, region, or diagonal. A hidden pair is a pair of cells that have two candidates that do not appear in any other cell in the same row, column, region, or diagonal. A hidden triple is a group of three cells that have three candidates that do not appear in any other cell in the same row, column, region, or diagonal. A hidden quad is a group of four cells that have four candidates that do not appear in any other cell in the same row, column, region, or diagonal. When you find a hidden group, you can eliminate any other candidate from those cells.
Use logic and elimination to find more numbers. Sometimes you can use logic and elimination to find more numbers without writing down all the possible candidates. For example, if you know that a certain number must be in one of two cells in a row, column, region, or diagonal, you can eliminate that number from any other cell in that row, column, region, or diagonal. Or if you know that a certain number must be in one of two regions in a row or column of regions, you can eliminate that number from any other region in that row or column of regions.
These are some of the basic strategies to solve diagonal jigsaw sudoku puzzles. There are more advanced techniques that you can learn as you progress in your sudoku skills. You can also use hints and solvers if you get stuck or want to check your answers.
Why should you play diagonal jigsaw sudoku?
Benefits of playing sudoku
Playing sudoku is not only fun and challenging but also beneficial for your brain and mental health. Here are some of the benefits of playing sudoku:
Improves concentration
Sudoku requires you to focus on the puzzle and pay attention to the details. You need to scan the grid and look for patterns and clues. You need to keep track of the numbers and their positions. You need to use logic and deduction to find the correct numbers for each cell. All these mental activities improve your concentration and help you stay alert and sharp.
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Reduces anxiety and stress
Sudoku can help you relax and calm your mind. When you play sudoku, you enter a state of flow where you are fully immersed in the puzzle and forget about your worries and problems. You enjoy the challenge and the satisfaction of solving the puzzle. You feel happy and accomplished when you finish the puzzle. Sudoku can also distract you from negative thoughts and emotions and help you cope with anxiety and stress.
Promotes a healthy mindset
Sudoku can help you develop a healthy mindset and attitude towards life. Sudoku teaches you to be patient and persistent when facing difficulties and challenges. Sudoku encourages you to think creatively and logically when solving problems. Sudoku rewards you for your efforts and achievements when completing puzzles. Sudoku motivates you to learn new skills and improve your performance when playing harder puzzles.
Helps kids develop their problem-solving skills
Sudoku can help kids develop their problem-solving skills at an early age. Sudoku can stimulate their brain development and cognitive abilities. Sudoku can enhance their memory and concentration. Sudoku can foster their logical thinking and reasoning skills. Sudoku can boost their confidence and self-esteem when solving puzzles.
Promotes healthy competition
Sudoku can also promote healthy competition among players who want to challenge themselves and others. Sudoku can be played individually or with friends and family members who share the same interest in sudoku puzzles. Sudoku can be played online or offline with different levels of difficulty and modes of play. Sudoku can be a source of fun and entertainment as well as a way of measuring one's skills and abilities against others. Sudoku can also foster a sense of community and friendship among sudoku enthusiasts who share tips, tricks, and puzzles with each other.
Where can you play diagonal jigsaw sudoku?
Jigsaw Sudoku by Sudoku.com - Apps on Google Play
If you are looking for a free app to play diagonal jigsaw sudoku on your Android device, you might want to try Jigsaw Sudoku by Sudoku.com. This app offers thousands of diagonal jigsaw sudoku puzzles with different shapes and sizes. You can choose from four levels of difficulty: easy, medium, hard, and expert. You can also use hints, undo, redo, erase, and check features to help you solve the puzzles. You can also customize the app's appearance, sound, and language settings. You can also track your progress and achievements with statistics and leaderboards.
Jigsaw Sudoku Puzzles by Krazydad
If you are looking for a free website to play diagonal jigsaw sudoku online or print them out, you might want to try Jigsaw Sudoku Puzzles by Krazydad. This website offers thousands of diagonal jigsaw sudoku puzzles with different shapes and sizes. You can choose from six levels of difficulty: easy, easy-ish, intermediate, hard-ish, tough, and crazy. You can also choose the size of the puzzle: 6x6, 9x9, 12x12, or 16x16. You can also download the puzzles as PDF files or print them out directly from the website. You can also find the solutions for each puzzle on the website.
Web Jigsaw X Sudoku - Free Irregular Diagonal Sudoku Puzzles to Play Online
If you are looking for another free website to play diagonal jigsaw sudoku online, you might want to try Web Jigsaw X Sudoku. This website offers hundreds of diagonal jigsaw sudoku puzzles with different shapes and sizes. You can choose from five levels of difficulty: easy, medium, hard, very hard, and fiendish. You can also choose the size of the puzzle: 9x9 or 12x12. You can also use hints, pencil marks, undo, redo, check, and solve features to help you solve the puzzles. You can also customize the website's appearance, sound, and language settings.
Conclusion
Diagonal jigsaw sudoku is a fun and challenging puzzle game that combines irregular shapes and diagonal constraints with the classic sudoku rules. It is a great way to exercise your brain and have fun at the same time. It can also improve your concentration, reduce your anxiety and stress, promote a healthy mindset, help kids develop their problem-solving skills, and promote healthy competition. You can find free diagonal jigsaw sudoku puzzles to download or play online on various apps and websites. If you are looking for a new challenge and a new way to enjoy sudoku puzzles, you should give diagonal jigsaw sudoku a try!
FAQs
Q: What is the difference between diagonal jigsaw sudoku and regular sudoku?
A: Diagonal jigsaw sudoku is a variation of regular sudoku that adds two more rules: the regions are irregular jigsaw-like shapes instead of square boxes, and the two main diagonals must also contain all the numbers from 1 to 9.
Q: How do I solve a diagonal jigsaw sudoku puzzle?
A: To solve a diagonal jigsaw sudoku puzzle, you need to fill in the grid with numbers from 1 to 9 following the rules of diagonal jigsaw sudoku. You can use logic and deduction as well as some basic strategies such as writing down possible candidates, filling in cells with only one possible number, looking for naked and hidden groups, and using logic and elimination.
Q: What are the benefits of playing diagonal jigsaw sudoku?
A: Playing diagonal jigsaw sudoku can improve your concentration, reduce your anxiety and stress, promote a healthy mindset, help kids develop their problem-solving skills, and promote healthy competition.
Q: Where can I find free diagonal jigsaw sudoku puzzles to download or play online?
A: You can find free diagonal jigsaw sudoku puzzles to download or play online on various apps and websites such as Jigsaw Sudoku by Sudoku.com, Jigsaw Sudoku Puzzles by Krazydad, and Web Jigsaw X Sudoku.
Q: What are some tips and tricks to improve my diagonal jigsaw sudoku skills?
A: Some tips and tricks to improve your diagonal jigsaw sudoku skills are: - Practice regularly and try different levels of difficulty and sizes of puzzles. - Learn and apply more advanced techniques such as x-wing, swordfish, coloring, and forcing chains. - Compare your solutions with others and see how they solved the puzzle differently or faster. - Challenge yourself and others with timed puzzles and leaderboards. - Have fun and enjoy the puzzle!
I hope you enjoyed this article and learned something new about diagonal jigsaw sudoku. If you have any questions or feedback, please leave a comment below. Thank you for reading and happy puzzling! 44f88ac181