Ogust is a bridge

Contract bridge

Contract bridge, usually known simply as bridge, is a trick-taking card game using a standard deck of 52 playing cards played by four players in two competing partnerships with partners sitting opposite each other around a small table...

 convention

Bridge convention

A bridge convention is a system of calls made during the auction phase of a contract bridge game which conveys a coded meaning about the players' card holdings...

 used after a weak two bid

Weak two bid

The Weak two bid is a common treatment used in the game of contract bridge, where a jump bid of two of a suit signifies a weak hand with a long suit. It is a form of preemptive bid...

 by responder to gauge the strength of the weak two bidder's hand. This convention is named after Harold A. Ogust from the US, and is also known as the 'Blue Club response' from the bidding system developed by Benito Garozzo

Benito Garozzo

Benito Garozzo is one of the most famous bridge players in the history of the game. He has won 13 world championship titles with the Italian Blue Team, playing with Pietro Forquet and later Giorgio Belladonna...

.

Use of the convention

After any weak two opening bid, a forcing relay bid of 2NT by responder asks opener to describe the general strength and quality of their hand. Responder usually has around the points for an opening bid and is interested in game, although it does not guarantee trump support.

Responses

The standard responses to the Ogust convention, as listed in The Official Encyclopedia of Bridge and Goren's New Bridge Complete, are:

2// - (pass) - 2NT - (pass) -

• 3 shows a "minimal" hand with a "poor" suit

• 3 shows a "minimal" hand with a "good" suit

• 3 shows a "maximal" hand with a "poor" suit

• 3 shows a "maximal" hand with a "good" suit

• 3NT shows a "solid" suit (that is, AKQ of the long suit)

The definitions of "minimal" and "maximal" hands and "poor" and "good" suits are matters of partnership agreement. Many players regard a "minimal" hand as 6-7 HCP and a "maximal" hand as 8 or more HCP. There's more variation in the interpretation of "poor" and "good" hands. Partnerships that are strict in their preempts tend to regard suits with only two of the top three or three of the top five cards as "poor" while partnerships that preempt with poorer suits typically describe such suits as "good."

After knowing the quality of opener's hand, responder can set the contract.

Variants

There are many variants to the Ogust convention. Some partnerships reverse the meaning of 3 and 3, which is Ogust's original formula.

• 3 shows a "minimal" hand with a "poor" suit

• 3 shows a "maximal" hand with a "poor" suit

• 3 shows a "minimal" hand with a "good" suit

• 3 shows a "maximal" hand with a "good" suit

Ogust's original formula also did not include the 3NT bid showing a solid suit.

Other variants define a "poor" suit to be one of the top three honors, and a good suit to be two of the top three honors, with "solid" suit denoting AKQ, or define minimum strength to be 6-8 HCP, and maximum strength to be 9-10 HCP (Benji Acol)