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Ruy Lopez Powerbook 2018
Once again we have used exclusively games from the engine room on playchess.com for the Ruy Lopez Powerbook 2018. The tremendous number of 1.8 million games in the Ruy Lopez allows meaningful statistical analyses even amongst side variations.
The Accelerated Dragon Powerbook 2018
Roughly 78.000 games from the engine room of Playchess as well as just 10.000 games played by humans constitute the basis of the Accelerated Dragon Powerbook.
King's Indian Defence Powerbook 2018
The new King's Indian special book is based on 241 000 games from the Engine room plus 76.000 "human" games – predominantly from Mega 2018, rounded out with top games from the correspondence chess database.
Caro-Kann Powerbook 2018
The Caro-Kann Powerbook 2018 is based on over 719 000 games, of which more than 690 000 come from the engine room on playchess.com.
London System Powerbook 2018
What is the trend in the London System? To play with or without Nf3? You can find the answers in the completely new powerbook - based on more than 187 000 games, most of them sourced in the engine room of playchess.
Nimzo-Indian Powerbook 2018
We have included the whole E00-E59 complex in our “Complete Nimzo-Indian Powerbook 2018”. It is based, e.g., on 80 000 games from the Mega and Correspondence Database. The lion’s share is made up of the 565 000 games from the engine room.
Najdorf Powerbook 2018
The Najdorf Powerbook 2018 is based on a totally incredible number of games: 3.2 million! The lion’s share is provided by the engine room on playchess.com, with the addition of 72 000 games from human experts.
Italian Powerbook 2018
The Italian Powerbook 2018 will consist predominantly of engine games (783 000), with in addition top class material from Mega and a small number of correspondence games (16 000).
French Defence Powerbook 2018
For the French Powerbook we once again used above all high grade material: “only” just 20 000 games from Mega and from correspondence chess, but these are of high quality. Added to that are 582 000 games from the engine room on playchess.com.
Sicilian Paulsen Powerbook 2016
In our Powerbook we have brought together all games with the ECO codes B40-B49. Added to 62 000 selected master games from both Mega and correspondence chess there 122 000 high class games from the engine room on playchess.com.
Queen's Gambit Declined Powerbook 2016
For the Queen's Gambit Declined Powerbook we once again used above all high grade material: 90 000 games from Mega and from correspondence chess, but these are of high quality. Added to that are 410 000 games from the engine room on playchess.com.