Source code: https://github.com/skipallmighty/SwiftTacToe
Algorithm details: http://en.wikipedia.org/wiki/Tic-tac-toe#Strategy
We skip forks and opposite corners of algorithm.
Assets here: http://imgur.com/a/V9xpk
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Leave comments on any errata
Making a game of Tic Tac Toe with AI
Show us your aweomer version! Put a link to a github page in the comments.
Special Thanks to Logan @ loganwright.io