Tool to code / decode with the Tic-Tac-Toe cipher. The Tic-Tac-Toe code is a grid cipher, using symbols from the famous game Tic-Tac-Toe (or noughts and crosses or Xs and Os)
Tic-Tac-Toe Cipher - dCode
Tag(s) : Symbol Substitution
dCode is free and its tools are a valuable help in games, maths, geocaching, puzzles and problems to solve every day!
A suggestion ? a feedback ? a bug ? an idea ? Write to dCode!
Tic-Tac-Toe Cipher
Tic-Tac-Toe Decoder
Tic-Tac-Toe Encoder
Answers to Questions (FAQ)
How to encrypt using Tic-Tac-Toe cipher?
The Tic-Tac-Toe code uses the 3x3 grid of the game of the same name (also known as OXO grid). The grid is composed of 2 vertical lines and 2 horizontal lines delimiting 9 distinct spaces, ie. the character # (sharp) but in bigger.
In this grid are written the first 9 letters of the alphabet, then with crosses, the next 9, and with circles the last 8.
Example:
| A | .png) | B | .png) | C | .png) |
|---|---|---|---|---|---|
| D | .png) | E | .png) | F | .png) |
| G | .png) | H | .png) | I | .png) |
| J | .png) | K | .png) | L | .png) |
| M | .png) | N | .png) | O | .png) |
| P | .png) | Q | .png) | R | .png) |
| S | .png) | T | .png) | U | .png) |
| V | .png) | W | .png) | X | .png) |
| Y | .png) | Z | .png) | ||
| dCode.fr | |||||
Each letter is then symbolized by a symbol characterizing its location in the grid: 2 to 4 lines to indicate the position of the box and a point to indicate the position of the letter.
How to decrypt Tic-Tac-Toe cipher?
Decryption can be done visually via a drawing of the grid with paper and a pencil, replacing each symbol with the corresponding letter.
Example: is translated TICTACTOE
How to recognize a Tic-Tac-Toe ciphertext?
The symbols are very similar and must be reminiscent of the ridge grid, right angles, 2 to 4 perpendicular lines accompanied by a single point having 3 possible positions (left, center, right).
The symbols look like the Pigpen cipher which is similar.
Source code
dCode retains ownership of the "Tic-Tac-Toe Cipher" source code. Any algorithm for the "Tic-Tac-Toe Cipher" algorithm, applet or snippet or script (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, breaker, translator), or any "Tic-Tac-Toe Cipher" functions (calculate, convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (Python, Java, PHP, C#, Javascript, Matlab, etc.) or any database download or API access for "Tic-Tac-Toe Cipher" or any other element are not public (except explicit open source licence like Creative Commons). Same with the download for offline use on PC, mobile, tablet, iPhone or Android app.
Reminder: dCode is an educational and teaching resource, accessible online for free and for everyone.
Cite dCode
The content of the page "Tic-Tac-Toe Cipher" and its results may be freely copied and reused, including for commercial purposes, provided that dCode.fr is cited as the source.
Exporting the results is free and can be done simply by clicking on the export icons ⤓ (.csv or .txt format) or ⧉ (copy and paste).
To cite dCode.fr on another website, use the link:
In a scientific article or book, the recommended bibliographic citation is: Tic-Tac-Toe Cipher on dCode.fr [online website], retrieved on 2025-04-15,
