After the second exchange, any player can choose to play Chicago. In this case, he pledges himself to win all the tricks of the game. If he does, he is awarded 15 points, but if he fails, the penalty is just as harsh: -15 points.
Sometimes, a player given five cards below ten either inclusive or exclusive – must be decides before game 賭場 starts is allowed to replace them before the exchanges begin.
Some play with 3 exchanges instead of 2. Then of course, scoring for hands will be made after both the first and the second exchange.
Some do not use the “one up” rule.
Often, a game will require that a player declare “Chicago” before they can win the game. The declaration is accepted regardless of whether one wins or loses the 5 tricks.
Often, one wants to give higher rewards than 7 or 8 points for four of a kind and Straight flush respectively. There are several ways to achieve this, most notably by elevating the player immediately to 52 points, or lowering either all players or one player of the holder’s choice to 0 points, or a combination of these. Some also separate the Royal Flush from the Straight Flush, awarding 9 points for a Royal Flush. Holding a Royal flush usually means immediate victory.
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The confusion is great as to what scores are appointed in the case of Chicago. Some will argue that no player will get any points at all besides the +15 or -15, whilst others will allow other points to be awarded. The +5 for the game, however, can never be stacked with the +15 for Chicago. Yet another variation is to award +13/-13 points for Chicago and the declaring player gets to go first. In that variation it is forbidden to declare Chicago unless the player has reached 13 points, ruling out the possibility of a negative score choi bai.
Some prescribe that any player with 45 points or more is not allowed to replace any cards.
Some require that after and not in the same hand as a player reaches 52 points, he must win the game once more before he actually wins. This handles the possibility that more than one player reach 52 points in the same hand.
Some award 10 points instead of 5 if the last trick is taken with a deuce. If this variant is employed, 30 points must also be awarded for a Chicago hand successfully ended with a deuce.