Impossible Tic Tac Toe is a fun chrome extension. it's a free extension , it has 6,000+ active users since released its first version, it earns an average rating of 3.55 from 11 rated user, last update is 482 days ago.
Think you can beat an algorithm? Well, you can't. You can either lose or tie. View the algorithm https://github.com/vtempest/tictactoe-chrome
You could download the latest version crx file or older version files and install it.
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You could find more help information from impossible tic tac toe support page.
You could send emails to publisher, or check publisher's website.
You could click to report abuse of impossible tic tac toe.