The first player, who shall be designated "X", has three possible strategically distinct positions to mark during the first turn. Superficially, it might seem that there are nine possible positions, corresponding to the nine squares in the grid. However, by rotating the board, we will find that, in the first turn, every corner mark is strategically equivalent to every other corner mark. The same is true of every edge (side middle) mark. From a strategic point of view, there are therefore only three possible first marks: corner, edge, or center. Player X can win or force a draw from any of these starting marks; however, playing the corner gives the opponent the smallest choice of squares which must be played to avoid losing. [19] This might suggest that the corner is the best opening move for X, however another study [20] shows that if the players are not perfect, an opening move in the center is best for X. George Cooper wrote the words and John Rogers Thomas wrote the music for a song "Tit, Tac, Toe" in 1876. [34] Tic-Tac-Toe is the best game for children and young people, but not only. The game is used as a pedagogical tool, improve concentration, build the competitive sport spirit and develops intelligence of players. Lieberman P. Some effects of the semantic and grammatical context on the production and perception of speech. Language and Speech. 1963; 6:172–175. [ Google Scholar]

Patashnik, Oren (1 September 1980). "Qubic: 4 × 4 × 4 Tic-Tac-Toe". Mathematics Magazine. 53 (4): 202–216. doi: 10.2307/2689613. ISSN 0025-570X. JSTOR 2689613. a b c Juul, Jesper (2011). Half-Real: Video Games Between Real Rules and Fictional Worlds. MIT Press. p.51. ISBN 978-0-262-51651-8. Bolinger (1972, 1986) argued that the most informative words in a sentence receive an accent and some version of this view has been used to understand differences in accent type (e.g. Pierrehumbert & Hirschberg, 1990) as well as the ways in which prominence signals the information structure of a sentence (e.g. Gussenhoven, 1983; Selkirk, 1996; Schwarszchild, 1999). The word “violin” in (1b) receives an accent because, as the answer to the question in (1a), it is the most important part of the sentence. It's pretty different from Tic-Tac-Toe, but the fun is guaranteed. Strategies and tactics to win at noughts and crosses game

or 6 (in this situation, O should not take 4 or 7, O should take 2, 3, 8 or 9. In fact, taking 9 is the best move, since a non-perfect player X may take 4, then O can take 7 to win). Your victory is assured if your opponent moves their O somewhere other than in the center square. Respond by placing your second X in a corner while keeping an empty square next to your initial X. https://www.youtube.com/watch?v=CcW3v3mUkZY When your opponent begins at tik tak to Your opponent's first move in a corner square

When considering only the state of the board, and after taking into account board symmetries (i.e. rotations and reflections), there are only 138 terminal board positions. A combinatorics study of the game shows that when "X" makes the first move every time, the game outcomes are as follows: [16] Tic Tac Toe is traditionally played on a 3x3 board. In Tic Tac Toe Online, you can expand that to a 5x5 or 7x7 board for a greater challenge and some exciting games! You match 4 instead of 3 in a row in these larger board sizes, changing the game entirely. Play online multiplayer Zaslavsky, Claudia (1982). Tic Tac Toe: And Other Three-In-A Row Games from Ancient Egypt to the Modern Computer. Crowell. ISBN 0-690-04316-3. Schafer AJ, Speer SR, Warren P, White SD. Prosodic influences on the production and comprehension of syntactic ambiguity in a game-based conversation task. Fourteenth Annual CUNY Conference on Human Sentence Processing; Philadelphia, PA. 2001. [ Google Scholar] Quantum tic-tac-toe allows players to place a quantum superposition of numbers on the board, i.e. the players' moves are "superpositions" of plays in the original classical game. This variation was invented by Allan Goff of Novatia Labs. [33]

a b Wolf, Mark J. P. (16 August 2012). Encyclopedia of Video Games: The Culture, Technology, and Art of Gaming. Greenwood Publishing Group. pp.3–7. ISBN 978-0-313-37936-9. W., Weisstein, Eric. "Tic-Tac-Toe". mathworld.wolfram.com . Retrieved 12 May 2017. {{ cite web}}: CS1 maint: multiple names: authors list ( link) Averbach, Bonnie; Chein, Orin (2000). Problem Solving Through Recreational Mathematics. Dover Publications. p. 252. ISBN 978-0-486-40917-7. Parker, Marla (1995). She Does Math!: Real-life Problems from Women on the Job. Mathematical Association of America. p.153. ISBN 978-0-88385-702-1.