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• Tic-tac-toe (American English), noughts and crosses (Commonwealth English and British English), or Xs and Os/“X’y O’sies” (Ireland), is a paper-and-pencil game for two players, X and O, who take turns marking the spaces in a 3×3 grid.The player who succeeds in placing three of their marks in a diagonal, horizontal, or vertical row is the winner.
• The Tic Tac Toe game! Simple, quick, funny! - Party mode with two local players 👥 - Three difficulty levels:. easy: the game plays (almost) randomly;. medium: the game knows some strategy;. hard: the game knows almost all best strategies (but you can win with some tricks, and sometime it makes mistakes).

Tic Tac Toe game. Write a program that plays tic-tac-toe. The tic-tac-toe game is played on a 3x3 grid the game is played by two players, who take turns. The first player marks moves with a circle, the second with a cross. The player who has formed a horizontal, vertical, or diag-onal sequence of three marks wins.

The Rules

No Quantumness — A.k.a Classical

At its core, Quantum TicTacToe is very similar to regular, classical, TicTacToe. In classical TicTacToe, two players X and O alternate turns and pick squares on which to put their symbol. Three X’s or three O’s in a row (or column or diagonal) results in a win for that player. If you’ve never played TicTacToe before, try it out in the game above and keep the quantumness-slider all the way to the left (No Quantum).

Quantum TicTacToe

If you’re ready to move beyond the classical world and into the quantum realm, it’s time to increase the quantumness! We’ll explain all of the quantum moves below. Some of these moves are disabled depending on the quantumness level. For those who just want to start playing, here’s how they can be performed:

• Single move: press a single square. If a square turns red, it can no longer be used for quantum moves. Single squares are colored blue if the can.
• Superposition: press one empty square, then drag and hold and release on another empty square.
• Entanglement: press on a square, drag and hold to another and then release. This is very similar to superpositions, but for this move the squares need not be empty!
• Measurement: click the measure button, and then click an occupied square to measure it. Resulting single squares turn red, and are fixed for the rest of the round. Only these squares count towards a win!

Minimal Quantumness

As a first step, let’s try out the Minimal Quantum setting. This setting allows you do perform a quantum move that gives you possibilities that regular TicTacToe will never have. Namely, you can click&hold on an empty square and release on another empty square to create what quantum physicists call a superposition. Try it out in the game for yourself!

When two squares are in a superposition, it means that your X (or O!) is in both places at once, until it is forced to pick one over the other. This is very similar to a coin with heads or tails that is forever spinning on its side. Whilst spinning, we can equally well say it is both heads and tails simultaneously! Only when it stops spinning, because of friction or because we push it over, does the coin pick a side. The same is true with quantum superpositions. In the game, we force all the superpositions to pick a side when the board is full.

You can also force a superposition to decide by using the collapse button. You don’t get to place an X or an O in that turn, but you get to pick a superposition instead. Once you select it, it will randomly choose one of the two squares.

Hint: At this level of quantumness, see if you can use superpositions to block your opponent from making a winning move!

Moderate Quantumness

At a moderate level of quantumness, three new quantum features become available on top of the Minimal Quantum settings.

The first thing you’ll notice, is that when you place a single square it no longer turns red. Instead, the square stays blue, indicating that it has not yet been measured. To win the game, you need to have three measured squares in a row/column/diagonal. So having three blue X’s in a row/column/diagonal does not mean you win!

To turn blue squares into red squares, you either need to measure them with the collapse button or wait for the board to get full (then, all squares are measured automatically).

But beware. As long as a square is blue, your opponent can entangle it. This is the second quantum feature. Creating entanglement happens just as with a superposition, you drag&hold an empty square and release it on top of a blue square. Try it out! You’ll see the two squares turn into a Q-symbol, which is a mix between the X and the O. This means that if one of the two squares is the X, the other is always the O. Which one is which can be found out only through measuring, or waiting until the board is full.

There is one more quantum feature in this mode: you can place another superposition on top of your own! This is where things become really strange. If you have two superpositions on top of each other, you’ll notice that you only get to see half symbols. If you measure these squares, there is a chance they both become empty! The other option, is that both become your symbol. Which of these options happens, is determined with a 50/50 chance!

Hint 1: Use entanglement to get a shot at swapping your opponent’s square with your own.

Hint 2: Try to use two superpositions of your own squares as a chance for erasing a mistake.

High Quantumness

At this level of quantumness, even more features become available on top of the Moderate Quantumness level. If you can play this level of the game confidently, you’re really starting to grasp the way the quantum realm works.

In this mode, you can entangle your square with part of an opponent’s superposition. The resulting 3-square entangled state is quite complicated, and can result in four different outcomes when measured! See if you can find out which!

This mode is called mostly quantum, and not fully quantum, because the full quantum world would allow for more than 3-square entangled states. Visualizing this for a game is a very difficult task! (But that doesn’t mean I won’t try for future versions! So keep an eye out for that.)

A downloadable game for Windows, macOS, and Linux

Tic-tac-toe (also known as Noughts and crosses or Xs and Os) is a paper-and-pencil game for two players, X and O, who take turns marking the spaces in a 3×3 grid. The player who succeeds in placing three of their marks in a horizontal, vertical, or diagonal row wins the game. (source: Wikipedia)

'Why should I play this? It's way '90ish'

Well have u ever got tired of today's sophisticated gameplays and stories? You don't have time to fully understand and master these games' controls and techniques? Playing video games became so complex that you actually get angry trying to win, instead of relaxing? Why not rolling back to one of the most popular games that is not only easy but also challenging? X 'n' 0 is launching on itch.io. Try it now!

About

Never heard of Tic Tac Toe game before? Are you a master of Tic Tac Toe? Everybody is welcome to play this game! X 'n' 0 represents the modern version of the very popular game, providing smooth graphics, friendly user interface and many features yet to come. Enjoy it and show your friends who is better!

New features coming

One of the big features on the way is the possibility to play versus different difficulties artificial intelligent bots. The AI feature is the very next one going to be introduced in the scene along with an even more friendly interface to introduce the players and choose difficulties. Second big feature that may appear would be lan and online multiplayer. Stay tuned for more information and updates!

This project is currently under development.

Notes

This game is supported on the following platforms*:

• Windows 7 or later (recommended)
• Mac OS X 10.9 'Mavericks' or later
• Linux: Ubuntu 12.04, Fedora 21, Debian 8

Minimal requirements:

• CPU: Intel Pentium 3 Xeon (1.0 GHz) or AMD K6+
• RAM: 512MB
• VRAM: 128MB
• Hard disk space: up to 25MB
• Sound card: optional
• Mouse and keyboard: required

*Very important note: In order to play this game, your machine must have an up-to-date version of Java (Java Runtime Environment) installed. Very easy 2-step install it from here (official Java website).

If you have any curiosities, suggestions, any bugs to report, or you would simply like to let me know that you appreciate what I do, feel free to either comment down below, or check my profile for more contact options.

Purchase

In order to download this game you must purchase it at or above the minimum price of $1.49 USD. You will get access to the following files:

Tic Tac Toe Google Game

Download demo

Tic Tac Toe One Player

Development log

• X'n'0 major update - download v1.0 now!
  Dec 22, 2018

Tic Tac Toe (itch) (intsmite) Mac Osteoarthritis

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