## Trifid Cipher

"The Trifid Cipher is similar to the Bifid Cipher except there are three grids instead of just one. To encode a message using this cipher you need to write out each letter out first by its layer then the row then column so you will end up with three numbers for each letter. Write the groups of three numbers on on top of each other. For example "Best Codes" would become...

"1 1 3 3 1 2 1 1 3"

2 2 1 2 3 3 1 2 1

1 2 1 1 1 2 2 2 1

Now write the letters horizontally in groups of three like this...

"113 312 113 221 233 212 121 112 221"

The final step is to find the letters using the new groups of three letters by finding the layer, row, and column. "113 312 113 221 233 212 121 112 221" would become "gvgjrmbdk"

To decode a message find the layer, row, and column. So "gvgjrmbdk" becomes "113 312 113 221 233 212 121 112 221"

Now put these numbers into three equal rows like this...

"1 1 3 3 1 2 1 1 3"

2 2 1 2 3 3 1 2 1

1 2 1 1 1 2 2 2 1

There columns of numbers are the coordinates and grids. The top number is the layer, middle number is the row, and the bottom number is the column.

"1 1 3 3 1 2 1 1 3"

2 2 1 2 3 3 1 2 1

1 2 1 1 1 2 2 2 1

Now write the letters horizontally in groups of three like this...

"113 312 113 221 233 212 121 112 221"

The final step is to find the letters using the new groups of three letters by finding the layer, row, and column. "113 312 113 221 233 212 121 112 221" would become "gvgjrmbdk"

To decode a message find the layer, row, and column. So "gvgjrmbdk" becomes "113 312 113 221 233 212 121 112 221"

Now put these numbers into three equal rows like this...

"1 1 3 3 1 2 1 1 3"

2 2 1 2 3 3 1 2 1

1 2 1 1 1 2 2 2 1

There columns of numbers are the coordinates and grids. The top number is the layer, middle number is the row, and the bottom number is the column.