Blackwood convention Blackwood convention In the partnership card game contract bridge, the Blackwood convention is a popular bidding convention that was developed by Easley Blackwood. It is used to explore the partnership's possession of aces, kings and in some variants, the queen of trumps, to judge more precisely whether slam is likely to be a good contract. Two versions of Blackwood are common: "standard" Blackwood, developed by Easley in 1933, and "Roman Key Card" Blackwood ("RKC" or "RKCB"), named for the Italian team which invented it. Standard Blackwood enables one partner to count partnership aces and kings in general. Key card variants
Middle name are many common last names in Vietnam), and also distinguishing the gender of the names (unisex names are used widely in Vietnam). Hence, Vietnamese rarely abbreviate their middle names. For Filipinos, the middle name is usually the maternal surname, which is the maiden surname of a person's mother. The use of the maternal surname as middle name is from American influence, where Filipinos adopted English naming customs, when they once used Spanish naming customs, that used two surnames (paternal and maternal) joined with the particle "y" (or "e", before "i"), which remains in use but became restricted to very formal