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
Christian Blackwood Sundance Film Festival. Christian Blackwood died in 1992 of lung cancer. He was married to film writer, producer and fine art photographer, Carolyn Marks Blackwood. His film archives are stored in the Museum of Modern Art. Christian Blackwood Christian Blackwood (July 7, 1942 – July 22, 1992) was an American film director and cinematographer. He was initially a child actor, then a cinematographer acclaimed for his work in Charlotte Zwerin's "". But his major work was as the director of over 80 films, mostly documentaries, over a 25-year career. His most famous films are "Observations Under The Volcano" and "On