Legend has it that the invention of the game saved an ancient city in time of war, and its widespread popularity helped raise funds to build the Great Wall of China. quini 'five each'), but by all accounts the game originated in China. The word 'keno' has French or Latin roots (Fr. By way of comparison, the typical house edge for non-slot casino games is under 5%. There are a wide variety of keno paytables depending on the casino, usually with a larger ' house edge' than other games, ranging from less than 4 percent to over 35 percent in online play, and 20-40% in in-person casinos. The player is paid based on how many numbers were chosen (either player selection, or the terminal picking the numbers), the number of matches out of those chosen, and the wager. After all players make their wagers, 20 numbers (some variants draw fewer numbers) are drawn at random, either with a ball machine similar to ones used for lotteries and bingo, or with a random number generator.Įach casino sets its own series of payouts, called 'paytables'. Players wager by choosing numbers ranging from 1 through (usually) 80.

Keno / k iː n oʊ/ is a lottery-like gambling game often played at modern casinos, and also offered as a game in some lotteries. For other uses, see Keno (disambiguation).

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