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
Easley Blackwood Jr. Easley Blackwood Jr. Easley Blackwood (born April 21, 1933) is an American professor of music, a concert pianist, a composer of music, some using unusual tunings, and the author of books on music theory, including his research into the properties of microtonal tunings and traditional harmony. Blackwood was born in Indianapolis, Indiana. He studied piano there and was doing solo appearances at the age of 14 with the Indianapolis Symphony Orchestra. After studies at many places (including Yale University, where he earned his Master of Arts degree) in the United States, he went to Paris to study from 1954 to