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Although it is impossible to win every game of tic-tac-toe, is it possible to never lose? Is there a specific placement or strategy for the game?

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  • $\begingroup$ I'm 99% sure I've heard that this game will always be drawn with perfect strategy from both sides. Yes. I'm surprised you didn't find this: blog.ostermiller.org/tic-tac-toe-strategy. $\endgroup$ – Colm Bhandal Dec 27 '17 at 19:59
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    $\begingroup$ If it was not possible to never lose, then it would be possible to always win. $\endgroup$ – XRBtoTheMOON Dec 27 '17 at 20:00
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    $\begingroup$ The only winning move is not to play,. $\endgroup$ – Henning Makholm Dec 27 '17 at 20:04
  • $\begingroup$ War games. Brings back memories of dialup modems. I used that line in my wifi password, much to the chagrin of guests. $\endgroup$ – copper.hat Dec 27 '17 at 20:07
  • $\begingroup$ Obligatory xkcd. $\endgroup$ – Arthur Dec 27 '17 at 20:08
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Yes. Here is a link explaining the whole thing: https://blog.ostermiller.org/tic-tac-toe-strategy.

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