ChessBase 3.0
17K plays 1991 #Others
ChessBase is a chess database developed by Matthias Wüllenweber for the Atari ST which led to the foundation of the ChessBase company in 1986 along with Frederic Friedel - the product name eponym of the company. ChessBase 1.0 was first released in January 1987 for the Atari ST running under GEM. Mathias Feist joined ChessBase in the late 80s, and was responsible to port the database and interface from Atari ST into the x86 DOS/Windows world, and further integrated first chess engines into the ChessBase interface, turning this into Fritz in 1991. Subsequent ChessBase versions evolved to a sophisticated multiple purpose GUI for database management, database queries and mining, interactive multimedia and video tutorials, analyzing or playing games and automatic engine tournaments with various native, UCI or WinBoard compliant engines on a single computer, inside a network or cloud, online play via the Playchess chess server, and Web- and desktop publishing of chess related documents.
A chess database is an organized collection of hundreds, thousands, or nowadays even millions of chess games. The proprietary ChessBase format manages those games with indices and classifiers for data mining and fast access. Queries for games can consider a variety of items, such as player names, date of games, ECO code, thematic keys and fragments of positions. PGN is supported as interchange format.
The ChessBase 3 database format (CBF) used two kind of files, data (*.cbf) and indices (*.cbi). The move encoding was based on a deterministic move generator, storing the generation number of a move. Along with ChessBase 6 in 1996, a new format was established, dubbed CBH, which was able to handle nested variations with annotations, multimedia files, and more sophisticated indices. One CBH database consists of more than ten files with various extensions, which can be archived inside a single file (*.cbv) format. Apparently, the CBH file format was reverse engineered for interoperability purposes like import into other databases
Text: RetroGames.cz, licensed under CC BY-SA 3.0
Controls
This is a PC game: it uses the keyboard the way it did under MS-DOS, and the mouse where the game supports it. Click the game screen first so it gets your key presses.
Many DOS games start with a menu or ask a question first — read the screen and answer with the keyboard. Arrow keys, Enter, Space, Ctrl and Alt are the usual game keys.
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Controls
This is a PC game: it uses the keyboard the way it did under MS-DOS, and the mouse where the game supports it. Click the game screen first so it gets your key presses.
Many DOS games start with a menu or ask a question first — read the screen and answer with the keyboard. Arrow keys, Enter, Space, Ctrl and Alt are the usual game keys.
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