How to Solve Sudoku Manually

Of course, it is much more fulfilling to solve sudoku with just a pen as an aide, right? Here are some techniques I use:
1. Identify recurring numbers.
2. Draw lines mentally or lightly using a pencil, whichever is your preference. The reference point will be the identified recurring number.
3. Use deduction.

Using step 1, 2 and 3 above, we apply these tips to this puzzle:


Step 1. Let us try the number 7
Step 2. We draw the line (or lines if possible) from 7.



Step 3. By deduction, 7 should be on the cell encircled below



Let us repeat procedure for other numbers.

Step 1. Let's try 8.

Step 2.The lines will eliminate the cells where we cannot put 8.

Step 3. By deduction, 8 should be on the cell encircled below.



Repeat steps for other numbers and you'll end up solving the puzzle like I did below:

































Try it yourself and enjoy sudoku!

See also:
Sudoku Excel Helper Explained
Sudoku Trick

Sudoku: Excel Helper with hints

The Sudoku excel helper is now updated. Another sheet was added to show hints to aid you in solving the puzzle.



This file is only a helper not a solver. It will help solve the sudoku puzzle easily. It will NOT provide solution.The file can be downloaded here. Please leave a comment if you find an error. Enjoy!

See also:
Sudoku Excel Helper Explained
Sudoku Trick

Sudoku: Excel Helper

The weekend passed uneventfully except for the Sudoku puzzle I was working on. While enjoying the puzzle (How geeky can I get!), I quickly realized that I can use Excel to help me with my puzzle. I managed to create a simple excel file that would verify my Sudoku answers.
Below is the screenshot of my Excel helper:





You may download my helper from here. If you find an error, please leave a comment. Enjoy!

See also:
Sudoku Excel Helper Explained
Sudoku Trick