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Mega Database 2022
The ChessBase Mega Database 2022 is the premiere chess database with over 9.2 million games from 1560 to 2021 in high quality.
Big Database 2022
The Big Database 2022 contains more than 9.2 million games from 1560 to 2021 in the highest ChessBase quality standard with ChessBase opening classification with more than 100,000 key positions, direct access to players, tournaments, middlegame themes, en
French Defence Powerbook 2022
The main part of the material on which the French Powerbook 2022 is based comes from the playchess.com engine room: 655,000 games. An impressive number to which 87,000 games from correspondence chess and the Mega were added.
French Defence Powerbase 2022
The French Defence Powerbase 2022 is a database and contains 10275 games from the Mega 2022 and the Correspondence Database 2022, 659 of which are annotated.
Sicilian Paulsen Powerbook 2022
Most of the material on which the Sicilian Paulsen Powerbook 2022 is based comes from the engine room of Schach.de: 426,000 games. In addition to this impressive amount, there are 43,000 games from the Mega and from correspondence chess.
Nimzo-Indian Powerbook 2022
How to play the Nimzo-Indian? Does White have promising variations available to him or can Black construct a water-tight repertoire? The answers are provided by the Powerbook based on more than 356 000 games, most of which were played by engines.
Queen's Gambit Declined Powerbook 2022
Most of the material which the Queen's Gambit Declined Powerbook 2022 is based on comes from 730,000 games from the engine room of Schach.de. In addition to this impressive number, there are almost 50,000 games from the Mega Database, and from corresponde