Anyone that has any experience with Sudoku puzzles will tell you that mistakes are easy to make, and they happen often. Once one mistake is made, a snowball effect of errors occurs, and you usually won't notice the mistake until so many mistakes have been made that you would have to take out your frustration in some way. Of course, you could simply start over again, but taking out your frustration is much more fun. There are many ways to do this, but I have a set of instructions here for my favorite way.

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Paper Hat

1. Take your Sudoku puzzle and fold down as shown. If your Sudoku puzzle is part of a book, you may need to rip the page out of the book.
2. Fold down the corners of your Sudoku puzzle as shown.
3. Fold up the bottom of your Sudoku puzzle as shown.
4. Flip over your Sudoku puzzle.
5. Fold over the sides of your Sudoku puzzle as shown.
6. Fold up the bottom edge of your Sudoku puzzle as shown.
7. Open up the bottom to make a hat shape. Then place the hat on your head and run around telling people you are the "Sudoku Master," even though you we're able to solve the puzzle that you're wearing.