You can use Anysudosolver to get its solution instantly and move further. Do not use this sudoku solver tool without giving your best effort while solving the puzzle. The goal is to just fill the empty cells with the already known numbers according to the Sudoku rules or exactly as given in your puzzle that you want to solve. You must give the correct input, i. Next, click on "Solve" button to get the answer instantly. Note, more than on solution may be possible.
Fill in the 9X9 grid with digits from 1 to 9. About Sudoku puzzle game and how to play? How 9x9 sudoku solver works The goal is to just fill the empty cells with the already known numbers according to the Sudoku rules or exactly as given in your puzzle that you want to solve. Fig Enter known numbers in the cell. When you see a naked pair, it is safe to eliminate those two numbers from all other cells in the row, column, or region the pair reside in.
In the naked pair example it is safe to eliminate the four and six from the two quads of 3,4,6, and 8. Doing so, leaves two 3,8 pairs. The 3,4,6, and 8 quads are really "hidden pairs". More Sudoku tips on this. In the example at the left there is a hidden pair 2 and 9. They are circled in red. Hidden pairs are identified by the fact that a pair of numbers occur in only two cells of a row, column, or region. They are "hidden" because the other numbers in the two cells make their presence harder to spot. It is safe to remove all other digits from the two cells circled in red so that only the two and nine remain.
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Hidden pairs will appear often in your Sudoku puzzles and games. Another Sudoku tip is to look for "naked triples". Naked triples like the name suggests are three numbers that do not have any other numbers residing in the cells with them. Unlike naked pairs, naked triples do not need all of the three candidates in every cell. Quite often only two of the three candidates will be shown.
In the example at the left, the three cells circled are the three naked triples. They are 5,6 and 9.
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Only a 5,6 and 9 can appear in those three locations. Therefore, you can remove all 5,6, and 9s from the other cells in this row. When you remove the 6,9 from two cells and the 5,6 you will discover a naked pair 1,4 and a hidden single 2. See how these Sudoku tips help you solve puzzles?
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Hidden triples are much harder to spot. They will occur in harder puzzles. Hidden triples like naked triples are restricted to three cells in a row, column, or region. Hidden triples like hidden pairs have additional digits that camouflage the three candidates. If you look at the example at the left, you will see three cells circled in red. These are the hidden triples.
Can you spot them? You are right, they are 4, 8, and 9. Remove the extra numbers from the cells circled in red. Do you think hidden triples are tough to find?
Try quads. Another Sudoku tip is to look for "naked quads". Naked quads are like naked triples with the exception that four cells contain only four distinct candidates in a row, column, or region.
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In the example at the left the naked quads are circled. They are 3, 5, 6, and 8. Remove any instance of these four numbers from the other cells in this row. The last of my Sudoku tips for this article is to look for hidden quads.
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As the name suggest, hidden quads are four cells containing only four distinct candidates in a row, column, or region. These four numbers are hidden by additional candidates.
Hidden quads are very difficult to find. The good news is I have rarely seen them. Maybe because they are hidden so well! They occur only in a few of the more difficult puzzles.
In my example at the left, the hidden quads circled in red are 1, 5, 6, and 8. It is safe to remove the extra digits 3,4,7,9 from these four cells. I hope these Sudoku tips will help you in your quest to become a professional Sudoku puzzle solver. Seeing these and more advanced tips explained may be easier for you to understand.
I recommend the video Sudoku Solving Techniques.
About Sudoku puzzle game and how to play?
This video covers the Sudoku techniques new window opens to solve Sudoku. Read my review and see for yourself. Learn the Sudoku X-Wing to solve some tough puzzles.