Byzantine Blackwood convention 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 that such kings are in well-defined "key" or "half-key" suits, there being no more than two such suits. The name was chosen to express the idea that Byzantine Blackwood is a development from Roman Blackwood, by analogy with the Byzantine Empire and the Roman Empire; rather
Tactic (video game) then released by Nessprod for iPhone and iPod Touch in 2009. Tactic (video game) Tactic is a video game, originally released for the Acorn Archimedes in 1990 by Eterna. It takes the form of a falling block puzzle. "Tactic" is a falling block puzzle as popularised by the game "Tetris". Unlike that game, all of the blocks are the same size but are a number of different colours (and on systems that cannot display enough colours, different shapes). The aim of the game is to drop the blocks so that blocks of the same colour form set patterns (e.g. a