Poker is a family of games that exhibit imperfect information, where players do not have full knowledge of past events. Whereas many perfect-information games have been solved (e.g., Connect Four and checkers), no nontrivial imperfect-information game played competitively by humans has previously been solved.

The relative odds according to calculations are: Losing cards= Outs/Winning cards= 38:10, which is 3:8:1. Another shortcut for calculating poker odds is, that there are 10 outs when the flop is dealt, which means you have a 104= 40% chance of winning probability to get a winning card on Turn or River.