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
Michael Blackwood period of 1999 through 2003. The IAAF gave Young a life ban as a result and annulled his performances. This had a significant effect on Blackwoods career: Jamaica were elevated to World Indoor 4 × 400 m Relay gold medal, where Blackwood ran the third leg. He was given the 400 m bronze medal at the 2003 World Championships, as well as being moved up to the top spot at the 2003 World Athletics Final. Michael Blackwood Michael Blackwood (born 29 August 1976 in Clarendon) is a Jamaican male track and field athlete, who specialized in the 400 meters, his