100 free printable sudoku puzzles how to#
100 free printable sudoku puzzles pdf#
100 free printable sudoku puzzles generator#

Just click the icon again to switch to placing big 'final' decisions (you can erase any of these too in case you change your mind). Just click the 'note' icon - now every number you put in a cell will be a small note alongside other candidates. Just like in a paper Sudoku, you can make 'small pencil notes' in the cell of which numbers can go there. No matter what trick you use the most helpful thing for solving a Sudoku is 'penciling the candidates'.

Now draw a horizontal and vertical line from every 4 on the board (you remember you can't place another 4 in a row or column) - it will quickly become clear there are almost no cells left where you can actually put it. The more cells are pre-filled the easier.

You start a Sudoku puzzle with some cells already filled in with numbers. So each row, column or region contains nine cells. Choose a number that occurs most on the board already (so there's one or two instances left to place) - there are indicators below the board to help you find the best one. In each Sudoku puzzle you have a 9x9 grid, divided into nine 3x3 square regions (you can just look above to get an impression). The more advanced technique you can use for a harder puzzle called 'scanning': it exploits the fact that any given number from 1 to 9 can occur only nine times in a completed Sudoku puzzle. Now you will notice the more and more rows, columns and regions become almost complete and easy to deduce - the complete puzzle picture becomes clearer with each move.

Now try to use the same technique but now with an almost filled-in row or column - find the one where only one number missing (then the answer is obvious) or two ones missing - try both options and figure out the right one. Which one is correct? Just place 3 and look across the whole row, then the column: is there a duplicate? Try the same with 7 and you'll get the correct option.

100 free printable sudoku puzzles how to#

For example, if a 3x3 square lacks just the numbers 3 and 7, we have only two options on how to place these two remaining numbers - 3 in a first cell and 7 in a second one or vice versa. You will certainly see a square where just one or two numbers are missing. Start a Sudoku puzzle on an Easy level to learn all the techniques quickly. Sounds like a tricky task? Just start scanning the board and you'll find all clues you need, one by one, and get the puzzle solved. So each number from 1 to 9 occurs only one time in each row, column and region. Now you just need to fill the remaining cells with numbers from 1 to 9, obeying the only rule:Įach row, column or region must not contain repetitive numbers. The more cells are pre-filled the easier the puzzle. In each Sudoku puzzle you have a 9x9 grid, divided into nine 3x3 square regions (you can just look above to get an impression). We hope you enjoy solving these Sudoku puzzles as much as we enjoyed creating them for Mahjong How to Play Sudoku Use these as home, classroom or homeschool to play with family, friends or students. That’s it! Generate any number of puzzles for personal use. The solution is included with every puzzle.

100 free printable sudoku puzzles pdf#

You will be able to download the generated PDF printable file. Check out the preview image, and then click on the green “Download” button. Once all these settings are done, click on the blue “Generate New Puzzle” button.

What paper size you want to print on? Select the Letter Size or A4 size paper.

How many puzzles per page? Set the layout as 1, 2 or 4 sudoku puzzles per page.

How many puzzles you want to generate? Set the number from 1 to 12.

Select the level to “Easy, “Medium”, “Hard” or “Evil”.

Here are the options to make your own Sudoku Puzzles. You can generate Sudoku Puzzles in 9×9 grid as well as 4×4 grid.

100 free printable sudoku puzzles generator#

The Sudoku Generator is a versatile tool that can be used in a variety of ways. Educators can use it to create Sudoku puzzles that are customized to the needs of their students. In addition, the Sudoku Generator can be used as a teaching tool. For instance, people who enjoy solving Sudoku puzzles can use the generator to create new puzzles to solve. The Sudoku Generator can be used for both educational and recreational purposes. How to generate puzzles with Sudoku Generator