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
Tactic (method) Tactic (method) A tactic (from the Ancient Greek "taktike" meaning "art of arrangement") is a conceptual action aiming at the achievement of a goal. This action can be implemented as one or more specific tasks. The term is commonly used in business, protest and military contexts, as well as in chess, sports or other competitive activities. Strategy is a set of choices used to achieve an overall objective whereas tactics are the specific actions used when applying those strategic choices. In military usage, a military tactic is used by a military unit of no larger than a division to implement