You only have to choose your cards (2, green) and board cards (3 to 5, yellow) and then click the Eval button (or check the flag to auto eval). The number displayed represent the goodness % of your hand with respect to all the other possible hands.
Updated on
Dec 9, 2013
Card
Data safety
Developers can show information here about how their app collects and uses your data. Learn more about data safety