How many points is a bridge Slam?

It is widely considered (for example Klinger 1994 and Root 1998) that 33 high-card points are needed for making a small slam in no trumps, and 37 high card points for a NT grand slam.

What does a takeout double mean in bridge?

In the card game contract bridge, a takeout double is a low-level conventional call of “Double” over an opponent’s bid as a request for partner to bid his best of the unbid suits.

What is the difference between a takeout double and a negative double in bridge?

A takeout-like Double by responder, popularized by Alvin Roth and Tobias Stone in 1957 (then called the “Sputnik”)….Negative Double:Takeout DoubleNegative DoubleOvercaller’s new suit after a Takeout Double shows a strong hand (17+ HCP)Responder’s new suit after a Negative Double is simply a signoff to play5

How do you know when to double in bridge?

When the last positive bid was made by an opponent, either player may make the call of double. If this is immediately followed by three passes, the contract is played doubled. The number of tricks required for the contract is not affected, but if the contract is defeated the defending side will score additional points.