Quantum Tic-Tac-Toe

The Super Quantum Tic tac toe is also known as 3x3, 5x5, 7x7 Noughts and crosses game. This is the wild extended game in which moves are the superposition of plays in a classic game. In actuality, it is inspired by hard tic-tac-toe with the idea of introducing quantum physics. The idea behind the game is to understand what it means to be at two different places at a single time like chess.

What is Quantum tic-tac-toe?

It is a genuine problematic approach. So, we can't ignore the importance of this. The game is a thoroughly studied quantum system that gives insights into research. Besides, the game gives you an understanding of quantum mechanics. Furthermore, it will give the concept of quantum mechanics to future quantum programmers or engineers. Also, the fun and engaging way make it more attractive to players.

What is tic-tac-toe?

Tic-Tac-Toe is a game which is played by two players. They take turns in an alternative way to complete the row, diagonal, or column. The player who does it first will win. Moreover, the game is played on a grid of 3*3 squares. These squares are nine in total.

Rules to play Super Quantum Noughts and crosses

  • The same classical board of tic-tac-toe is used for this game.
  • Furthermore, the board consists of a 3*3 square grid which is in total 9 squares.
  • There are two players. The “X” and “O”.
  • Players take turns one by one starting from player “X”.
  • Each turn, two moves are given to each player.
  • Also, marks should be in two different squares by both the players.
  • The important thing is, all X’s moves are subscripted by odd numbers. While O’s moves are subscripted by even numbers.
  • In this tic-tac-toe, moves are in the mixed states with no limit on number in a square.
  • Mixed moves cause the square to become entangled.
  • Moreover, the quantum can collapse which is a classic-move.
  • Illegal moves or running out of time can automatically result in the winning of another person.

How to play Quantum extended?

  • As mentioned above, the quantum tic-tac-toe is not separate from the classical one.
  • It has squares range from 1 to 9 with a 3*3 grid.
  • Furthermore, the start of the game will be from an empty board with two players. Namely X and O. The player X will take his turn first.
  • Every player will get two marks per turn and they have to mark two different squares.
  • The moves are in a mixed state which means half of the moves are in one square while another half in another square.
  • Besides, the other play will get to know later about it that in which square the mark is placed.
  • After that, the squares can be shared in mixed state moves. This situation causes entangling.
  • The entanglements become circular at one point which causes collapse move. Through this, the quantum moves become classical moves.
  • After the collapse, if there is a winner then the game ends.
  • Otherwise, the game will continue till the winner is selected or the game is drawn.
  • The players can also forfeit the move for collapse by collapse-mode.


The phenomena’s which are in consideration in quantum tic-tac-toe are:

  • Superposition

Objects can be in two places at one time. It is not possible in simple physics. So, the game will assist in understanding the concept of it too.

  • Entanglement

It is the phenomenon in which the quantum system shows correlations in its distant parts. This situation cannot be explained by causality.

  • Collapse

It is the time where quantum states reduce to classic states. The measurement cause collapse to happen but in the current formulation, the mathematics is silent on the measurement process. The dealing of measurement problems are derived from different interpretation efforts.


Perhaps, kids who grew up playing quantum games will have a conceptual understanding of quantum physics. Thus, this will help future quantum engineers and quantum programmers. They have a conceptual understanding and can recall the quantum tic-tac-toe game with a concept of fun and enjoyment.