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A hand pattern denotes the distribution of the thirteen cards in a hand over the four suits. In total 39 hand patterns are possible, but only 13 of them have an a priori probability exceeding 1%. The most likely pattern is the 4-4-3-2 pattern consisting of two four-card suits, a three-card suit and a doubleton.
In contract bridge, various bidding systems have been devised to enable partners to describe their hands so that they may reach the optimum contract.Key to this process is that players evaluate and re-evaluate the trick-taking potential of their hands as the auction proceeds and additional information about partner's hand and the opponent's hands becomes available.
Zar Points (ZP) is a statistically derived method for evaluating contract bridge hands developed by Zar Petkov. The statistical research Petkov conducted in the areas of hand evaluation and bidding is useful to bridge players, regardless of their bidding or hand evaluation system.
For example, on the sequence 1 ♣-1 ♠ (with or without opponent's interfering);1NT-2 ♣;2 ♦,2 ♥ will show an invitational hand with minimum five spades and four hearts, 2 ♠ an invitational hand with minimum five spades (in which case one does not have four hearts) or possibly six spades with or without four hearts. 2NT will show a balanced invitational hand, 3 ♣ typically an ...
Diagrams are used to illustrate a deal of 52 cards in four hands in the game of contract bridge. [1] Each hand is designated by a point on the compass and so North–South are partners against East–West. Suit features include: Each line represents a suit, indicated by its symbol – ♠ for spades, ♥ for hearts, ♦ for diamonds, and ♣ ...
In the game of contract bridge, it denotes a hand of thirteen cards which contains no singleton or void and at most one doubleton. Three hand patterns are classified as truly balanced: 4-3-3-3, 4-4-3-2 and 5-3-3-2. The hand patterns 5-4-2-2 (an example of a two-suiter) and 6-3-2-2 (a single-suiter) are generally referred to as semi-balanced.
The Romex system is a contract bridge bidding system designed by Mexican bridge expert George Rosenkranz. [1] Key features of Romex are the multiple meanings attributed to certain bids, such as the dynamic one notrump and the Mexican two diamonds.
If responder has 19 or 20 HCP, then a small slam is a possibility but more information is needed about opener's hand before it should be bid. This is where a quantitative bid should be made. A bid of 4NT "invites" opener to: bid 6NT with a maximum holding of 14 HCP (19 + 14 = 33 which is sufficient) pass with a minimum 12 HCP (20+ 12 = only 32)