> In spite of the diversity of strategies one can design, it is important to remark that the heads-up limit Texas hold'em variation has been claimed to be "essentially weakly solved" in January 2015 by the Cepheus poker-playing bot.[1] This means that on average the program is so good that a human would have no chance of ever edging ahead of it, even if the two played 60 million hands.[2] The bot can be played online at poker.srv.ualberta.ca, and users can even query strategies from the software

https://en.wikipedia.org/wiki/Heads_up_poker