Byzantine Blackwood convention notrump has been made, a bid of five notrump asks for additional high card "features". A king or doubleton king-queen not already shown in response to four notrump counts as one feature; a guarded king-queen combination not already shown count as two features. The responses are: Byzantine Blackwood convention Byzantine Blackwood is a bidding in the game of bridge. Devised by Jack Marx, it is a complex version of the (by which a four notrump (4NT) asks about 's holdings). Its premise is that both aces and kings may safely be shown in response to a Blackwood-type 4NT enquiry; provided
Common name Common name In biology, a common name of a taxon or organism (also known as a vernacular name, English name, colloquial name, trivial name, trivial epithet, country name, popular name, or farmer's name) is a name that is based on the normal language of everyday life; this kind of name is often contrasted with the scientific name for the same organism, which is Latinized. A common name is sometimes frequently used, but that is by no means always the case. Sometimes common names are created by authorities on one particular subject, in an attempt to make it possible for members