The popular Japanese puzzle game Sudoku is based on the logical placement of numbers. An online game of logic, Sudoku doesn’t require any calculation nor special math skills; all that is needed are brains and concentration.
Sudoku is a fun puzzle game once you get the hang of it. At the same time, learning to play Sudoku can be a bit intimidating for beginners. So, if you are a complete beginner, here are a few Sudoku tips that you can use to improve your Sudoku skills.
Tip 1: Look for rows, columns of 3×3 sections that contain 5 or more numbers. Work through the remaining empty cells, trying the numbers that have not been used. In many cases, you will find numbers that can only be placed in one position considering the other numbers that are already in its row, column, and 3×3 grid.
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.
Now that you know a little more about Sudoku, play and enjoy this free online game.
How to play Sudoku
The goal of Sudoku is to fill in a 9×9 grid with digits so that each column, row, and 3×3 section contain the numbers between 1 to 9.
At the beginning of the game, the 9×9 grid will have some of the squares filled in. Your job is to use logic to fill in the missing digits and complete the grid. Don’t forget, a move is incorrect if:
- Any row contains more than one of the same number from 1 to 9
- Any column contains more than one of the same number from 1 to 9
- Any 3×3 grid contains more than one of the same number from 1 to 9
Probably the best way for a beginner to learn how to play Sudoku is to work through a portion of a puzzle that's rated as "Easy". For the purpose of this tutorial, the Sudoku puzzle below has been provided with location references to help you understand the location of what' being discussed:
For example, the instructions might refer to R8/C9, which would be the box at the intersection of Row 8 and Column 9, which currently contains the number 4. Additionally, the instructions may refer to a block number, such as Block 1, which in the example shown above contains the numbers 9, 4 and 8 in the upper left of the Sudoku grid.
Keep the rules in mind – each row, column and block must contain only one instance of all of the numbers 1 through 9.
A Few Sudoku Tips
As you continue to work through your puzzles, keep the following points in mind:
· There's no need to guess. If you haven't eliminated a box to a single possible number, keep looking.
· You can work vertically, horizontally, or within a block, you should get accustomed to working all 3 ways and keep them in mind if it seems like you're stuck.
· In the process of completing the puzzle, you'll need to jump from block to block.
· If you make a mistake and end up with two of the same numbers in a row, column, or block, look around before you give up and start over. Can you move one of the duplicates to another location that's allowed and be able to continue?
· Don't forget to look at the big picture. It helps to be able to notice what's already in adjacent rows, columns and blocks, like you did in Steps 2 and 3 of this tutorial. Sudoku takes a keen eye, too!
· If you get stuck on a puzzle, take a break and come back to it later. Sometimes it helps to come back with a fresh outlook, especially if you're tired or in a hurry.
· Don't even think about trying a medium difficulty or advanced level puzzle until you're comfortable solving the easy puzzles first, or else you're likely to get discouraged and not want to continue playing Sudoku.
· When playing on paper, some Sudoku players like to write out the remaining numbers needed for a column or row and then cross them out or erase them as each numbers' place is solved.
· Others like to put the possible numbers within the box in small print to help them keep track.
· Others work better just saying the numbers in their head, or even aloud. Feel free to experiment with whatever makes you feel comfortable and help you to work more efficiently.
First Suduku For All
Note: Above Suduku Image is the first suduku for all...