How many possible Sudoku solutions are there?

If a cell ends up having only one possible entry, it is a “forced” entry that you should fill in. The most basic strategy to solve a Sudoku puzzle is to first write down, in each empty cell, all possible entries that will not contradict the One Rule with respect to the given cells. In the second and last rows beginning from the top of the 9×9 grid, the following equations can be formed: b+g+f=a+g, e+n+m=a+b+d.2

There are more than a few techniques to solve a Sudoku puzzle, but per Conceptis Puzzles, the easiest way to a Sudoku solution is to, “Scan rows and columns within each triple-box area, eliminating numbers or squares and finding situations where only a single number can fit into a single square.” If you’re looking to 1įor example, in the first and fourth columns beginning from the left of the 9×9 grid, we can form the following equations: m+n=a, g+n+f=g+c. Getting rid of all other distractions will help you solve the Sudoku grid much faster.Īccording to Guinness World Records, the fastest time to complete a “Very Easy” difficulty Sudoku puzzle was 1 minute 23.93 seconds. You can start with a single square, then a row, then a column. Slowly work your way up until you fill up all 81 spaces. There are more than a few techniques to solve a Sudoku puzzle, but per Conceptis Puzzles, the easiest way to a Sudoku solution is to, “Scan rows and columns within each triple-box area, eliminating numbers or squares and finding situations where only a single number can fit into a single square.” If you’re looking toįocus on only one part of a square, row, or column rather than worrying about the entire grid all in one go. What is the secret to solving Sudoku puzzles?

What What is the secret to solving Sudoku puzzles?

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