It seems that poker has finally fallen the next victim to insatiable and unstoppable AI, after chess and go world champions were defeated in the past. Poker seems to have been a more difficult problem for AI to solve than the games mentioned, primarily due to hidden information as well as bluffing, but now it's over for human beings. An AI developed by researchers was successful in defeating top professionals at No-limit Texas Hold’em, which is thought to be one of the most challenging types of poker. If anyone is interested who played for the mankind, the players were Jason Les, Dong Kim, Daniel McCauley and Jimmy Chou, though I'm not sure if these names are telling you anything.

Here're the links to the popular-science article and actual paper in Science magazine.