What does the two three principle mean in bridge

If the latter score is greater than the former, then our action to make a contract is called "sacrifice", and the corresponding bid is called "sacrifice".

In many bidding guides, "sacrifice call" and "two-three law" often appear together, and the content of "two-three law" is: "There are two piers at most for the bureau, and three for the non-bureaucratic side".

The essence of the "two-three law" is 500 points, and the number of two piers that have a bureau is doubled and three piers that are doubled by a non-bureau side; At the same time, its premise is that "the enemy has a game to make", a game without a game is worth about 400 points, and a game with a game is worth about 600 points, which is not much different from 500 points.

The above is an excerpt from "Bridge Beginner Improvement".

Note: The "two-three principle" in bridge, also known as the "two-three law", is a different way of saying the same thing. To understand the above summary requires some foundation, a more superficial supplementary explanation is:

If neither the "bureau" nor the "bureau" does not know what it is, it means that it is not appropriate to ask this question.

You understand the terminology is upstairs these people said, I don't understand the words I explained, there is a kind of call in the bridge, called sacrifice called, is called a relatively high bid, so that other people's good cards can not be called, even if -1, -2 may win, and the 23 principle is to say that there is a game, at most -2, no game, up to -3

There are two rounds and three no rounds.

It is the maximum number of piers that can be withstood according to the situation.

Because there are two games and three games without games, both of which are 500 points, which is about the same as a game score.

However, principles are only principles, and most of the cases are correct, and they can be freely adapted according to the actual situation.

The content of the "two-three law" is: "The situation is unfavorable at most two piers, and the situation is favorable to the maximum number of three piers".

In the case of satisfying the law of two and three, the sacrifice is called the loss suffered after being punished.

How to apply the rule of two-three: When blocking a call, assuming your teammates don't have any big cards, you can get the corresponding number of tricks. For example, if you call 2h for blocking, you can get 5 piers on your own, and you will be qualified.

When sacrificing bids, consider the strength of your teammates' previous bids to apply the rule of two or three.

Always remember that the rule of two or three is used when roughly judging that the enemy has a game, and if the enemy reluctantly calls for the game, don't sacrifice and defend better. If it is judged that the enemy has a slam, it is completely possible to block it as soon as possible, and it is acceptable to go down 4-5 tricks.

Bridge is all based on the score, and the two-three principle is just a simple memorization method, which is not difficult to understand after learning the scoring rules.

When you have a long set and need to block a call, you count your wins, for example, 6, in the case of a game, you call 2 (your strong set), and in the case of no game, you call 3

That is, the number of your wins added to your own winnings so that you have a better understanding of your home.

In modern bridge, many people use the rule of two-three-four to make a block call, and only look at a single hand (only look at the cards in the hand of the player who is blocked) to ensure that one side has a two-game down, the same game has a three-game down, and a one-sided no-game four.

If the opponent has a chance of making a game, if you make a sacrifice, you should ensure that you have a maximum of two games (when doubled) and a maximum of three games if you have no games (when doubled).

The content of the rule of two and three is that "two piers are allowed in the bureau, and three piers are allowed in the no bureau".

The essence of the rule of two or three is 500 points, and the number is the number of the two piers that are doubled by the bureau and the three piers that are doubled by the non-bureau side. At the same time, its premise is that "the opposing side has a game to make", and a game without a game is worth about 400 points, while a game with a game is worth about 600 points, both of which are not much different from 500 points.

The rule of two and three is not limited to the judgment of blocking bids, but also the basis for judging whether further competition is necessary or whether it is necessary to sacrifice bids in the bidding process.

If the opponent has a game, his own blocking call allows 3 piers.

If the opponent has no game, your own blocking call allows 2 piers.