explicitly communicate an agreement about checking it down, this is not collusion. Online specific Online play has allowed for new methods of cheating while other methods based on physical objects such as cards or chips are impossible. One new form of cheating is the use of bots. These are programs that play instead of a real human. Though their accuracy and their ability to win are disputed, their use normally violates the rules of online cardrooms, so using them is, by definition, cheating. Collusion in online poker is relatively easy and much more difficult to immediately spot if executed well. Cheaters can engage in telephone calls or instant messaging, discussing their cards, since nobody can see them. Sometimes one person may be using two or more computers to play multiple hands at the same table under different aliases (since many broadband plans offer customers multiple IP addresses, this can conveniently and cheaply be done without the likelihood of immediate detection). Such tactics can give cheaters an advantage that is difficult to work against. Online poker cardrooms keep records of every hand played, and collusion can often be detected by finding any of several detectable patterns (such as folding good hands to a small bet, as it is known that another player has a better hand). Users who frequently sit at the same tables will be flagged by poker rooms and their play will be closely monitored. Often, such users will be warned they have been flagged, in an effort to deter collusion. Another online method of cheating is "multiaccounting", where a player will register several accounts to their name (or, perhaps more commonly, to non-poker-playing friends and family members). This might be done to help enable the collusion previously mentioned, or perhaps to simply enable a well-known player to play incognito. Another common motive for multi-accounting is to facilitate chip dumping and other methods of equity maximization in online tournaments. A major difference between cash games and tournaments is that tournament winnings tend to be much less consistent over the short to medium term. Because tournaments tend to pay prize money only to the top ten percent of entrants on average and tend to pay the majority of prize money to a very small number of top finishers, in tournament play even the best players are prone to relatively long streaks of overall net losses (or even no winnings at