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
C. F. E. BACH motif work in the letter of Carl Philipp Emanuel Bach. C. F. E. BACH motif The C. F. E. BACH motif is a musical motif, consisting of the notes C, F, E, B "flat", A, C, B "natural". The motif is a musical cryptogram, which represents the name of Carl Philipp Emanuel Bach with the initials of his name - Carl Philipp (Filippo) Emanuel Bach -. The motif is based on the German musical nomenclature, in which the note B "naturalis" named H and the B "flat" named B - the same as in the ominous BACH motif -, however the