ChessBase

The new Corr Database 2020 is a large ChessBase collection of correspondence games from the period from 1804 to 2019. With more than 80,000 tournaments and over 1.6 million correspondence games.

Las tablas Syzygy de todos los finales de 5 piezas y los 143 más importantes de 6 piezas, en un lápiz USB 3.0 de 128 GB, listo para usar.

For the Slav and Semi-Slav Powerbook 2021 the ratings average was set at 2400. 1.76 million games from the engine room of playchess.com met this threshold, to which were added over 80 000 games played by humans.

Slav and Semi-Slav Powerbase 2021 is a database and contains a total of 10 610 games from Mega 2021 or the Correspondence Database 2020, of which 1030 are annotated.

The major part of the material on which the Caro-Kann Powerbook 2021 is based is taken from the engine room of playchess.com: 736 000 games. To that imposing corpus we have added another 58 000 games from Mega and from correspondence chess.

Caro-Kann Powerbase 2021 is a database and contains a total of 9549 games from Mega 2021 or the Correspondence Database 2020, of which 745 are annotated.

Almost 1 million games from the engine room of playchess.com form the basis of the English Powerbook 2021, with in addition 105 000 games from Mega and from correspondence chess.

English Opening Powerbase 2021 is a database containing in all 10 337 games from Mega 2021 or Correspondence Database 2020, of which 645 are annotated.

Top class material was used for the King’s Indian Powerbook 2021: over 100 000games from the Mega and from correspondence chess, and in addition more than 264 000 games from the engine room of playchess.com, in all 372 000 games.

King’s Indian Powerbase 2021 is a database and contains a total of 11092 games from Mega 2021 or the Correspondence Database 2020, of which 839 are annotated.