Craps is one of the most exciting games in any casino, built entirely on the foundation of probability and mathematical odds. Understanding dice probability is essential for players who want to make informed decisions at the table and comprehend why certain bets carry different house edges.
When two standard six-sided dice are rolled in craps, there are exactly 36 possible outcomes. Each die can show one through six, creating combinations that range from snake eyes (two ones) totaling two, up to boxcars (two sixes) totaling twelve. The distribution of these outcomes is not uniform—certain numbers appear more frequently than others. For example, a seven can be rolled in six different ways (1-6, 2-5, 3-4, 4-3, 5-2, 6-1), making it the most probable outcome with a probability of 16.67 percent. Conversely, a two or twelve can only be achieved in one way each, making them the least probable outcomes.
The come-out roll initiates each round of craps, where players bet on whether a seven or eleven will appear (natural win), or whether a two, three, or twelve will appear (craps loss). Understanding these probabilities helps players recognize which bets offer the best mathematical advantage. The point phase begins after the come-out roll establishes a number, and players must comprehend how the probability of rolling their point number before a seven changes throughout the game.
Pass line bets and don't pass bets have house edges of approximately 1.4 percent, among the best odds in the casino. These are calculated through understanding the precise probability of winning outcomes versus losing outcomes across all possible dice combinations. Come bets and don't come bets operate under identical probability mathematics, making them equally favorable for informed players.
Table etiquette in craps is as important as understanding the mathematics. Players must never touch the dice while they're in play, always use one hand to throw, and ensure the dice bounce off the far wall. Avoiding accusations of dice-switching or manipulation is crucial for maintaining the game's integrity. Additionally, experienced players understand the significance of proper betting terminology and respect the "stickman's" authority in calling outcomes.