Byzantine Blackwood convention 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 that such kings are in well-defined "key" or "half-key" suits, there being no more than two such suits. The name was chosen to express the idea that Byzantine Blackwood is a development from Roman Blackwood, by analogy with the Byzantine Empire and the Roman Empire; rather
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