All experienced poker players know that in poker your gambling skills, theoretical basis, and knowledge of human psychology are much more important than catching a good luck. All poker tournaments winners worked very hard during a long period of time before they became poker stars. Moreover, when you gamble poker online, your gambling skills and knowledge in poker strategy come to the fore, because you can’t see your opponents and estimate their qualification. The well-known fact is that in almost all poker variations the aim of the game is to collect the highest combination of cards, that’s why you should know all the winning poker hands. This information is available at all the popular information portals dedicated to poker and other games of chance. However, knowing which combination is more profitable is not enough. There is a good online tool for estimating your risks and winning chances, which is called “a poker odd calculator”. You enter the information in the program, and it calculates what are your approximate chances to win in this or that gambling situation, so that you may imitate this or that turn and see how your odds change if you do it. Even though many poker players say that odds calculators are not so uncomfortable in real game, you may use it for analyzing the game afterwards. The analysis and correction of mistakes are essential for training your gambling skills, which will later help you in winning poker tournaments online and offline.