Skip to content
tic-tac-toe

File:Tic_tac_toe.svg · Wikimedia Commons · See Wikimedia Commons

EntityQ210339· pop 54· linked from 275 articles

tic-tac-toe

Sign in to save

Also known as Xs and Os, noughts and crosses

Tic-tac-toe (American English), noughts and crosses (Commonwealth English), or Xs and Os (Canadian or Irish English) is a paper-and-pencil game for two players who take turns marking the spaces in a three-by-three grid, one with Xs and the other with Os. A player wins when they mark all three spaces of a row, column, or diagonal of the grid, whereupon they traditionally draw a line through those three marks to indicate the win. It is a solved game, with a forced draw assuming best play from both players.

AI overview

Tic-tac-toe is a simple paper-and-pencil game where two players take turns marking spaces in a three-by-three grid with Xs and Os, with the goal of marking three in a row (horizontally, vertically, or diagonally). Because the game is "solved," meaning mathematicians have determined the optimal strategy for both players, it always ends in a draw if both players play perfectly.

AI-generated from the Wikipedia summary — may contain errors.

Key facts

Game.italic title
no
Game.title
Tic-tac-toe
Game.image_link
200px
Game.image_caption
A completed game of tic-tac-toe
Game.genre
Paper-and-pencil game
Game.players
2
Game.setup_time
Minimal
Game.playing_time
~1 minute
Game.random_chance
None
Game.skills
Strategy, tactics, observation

via Wikipedia infobox

Wikidata facts

Image
Tic-tac-toe 5.png
Show 3 more facts
Commons gallery
Tic Tac Toe
minimum number of players
2
maximum number of players
2
Sources (2)

via Wikidata · CC0

~20 min read

Article

11 sections
Contents
  • Names
  • Gameplay
  • History
  • Combinatorics
  • Strategy
  • Further details
  • Variations
  • In popular culture
  • See also
  • References
  • External links

Tic-tac-toe (American English), noughts and crosses (Commonwealth English), or Xs and Os (Canadian or Irish English) is a paper-and-pencil game for two players who take turns marking the spaces in a three-by-three grid, one with Xs and the other with Os. A player wins when they mark all three spaces of a row, column, or diagonal of the grid, whereupon they traditionally draw a line through those three marks to indicate the win. It is a solved game, with a forced draw assuming best play from both players.

== Names ==

Gallery (18)

Connections

Categories