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
James Blackwood James Blackwood James Webre Blackwood (4 August 1919 – 3 February 2002) was an American gospel singer and one of the founding members of legendary Southern Gospel quartet The Blackwood Brothers. He is the only person in any field of music to have been nominated for a Grammy Award for 28 consecutive years. He received 31 total nominations and won 9 Grammy Awards. James Webre Blackwood was born on August 14, 1919, in Choctaw County, Mississippi, to sharecropper William Emmett Blackwood and his wife Carrie Prewitt Blackwood. He was the youngest of four children, which included his brother Roy Blackwood