Keno is one of the most disadvantageous games for users of virtual gambling establishments. An operator offering to play online keno for real money in this lottery variant has a greater chance of receiving money than the player himself. The advantage of the portal in this game is estimated at 25-29% of the winnings. The chance that the user will accurately predict all 20 number combinations is reduced to zero. However, you can win even if only a few selected numbers match. The probability of a gambler winning is estimated based on the number of marked numbers.