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Fritz Powerbook 2020
Fritz Powerbook 2020 contains 25 millions opening positions, derived from 1.7 million high class tournament games.
Fritz Powerbook 2020 contains 25 millions opening positions, derived from 1.7 million high class tournament games.
€69.90
Fritz Powerbook 2020 from Powerbook 2019
Up-to-date openings theory with 1.7 million games
Up-to-date openings theory with 1.7 million games
€69.90
€39.90
Petroff Defence Powerbook 2020
The major part of the material on which the Petroff Defence Powerbook 2020 is based comes from the engine room of playchess.com: 260 000 games. This imposing number is supplemented by another 11 000 from Mega and from correspondence chess.
The major part of the material on which the Petroff Defence Powerbook 2020 is based comes from the engine room of playchess.com: 260 000 games. This imposing number is supplemented by another 11 000 from Mega and from correspondence chess.
€9.90
Dutch Defence Powerbook 2020
The Dutch Defence Powerbook 2020 consists for the greater part of engine games (70 000), to which have been added high value material from Mega and the Correspondence Chess Database (30 000).
The Dutch Defence Powerbook 2020 consists for the greater part of engine games (70 000), to which have been added high value material from Mega and the Correspondence Chess Database (30 000).
€9.90
King's Gambit Powerbook 2020
The major part of the material on which the King's Gambit Powerbook 2020 is based is sourced from the engine room of playchess.com: 30 000 games. Another 3500 games from Mega and from correspondence chess have been added to this corpus.
The major part of the material on which the King's Gambit Powerbook 2020 is based is sourced from the engine room of playchess.com: 30 000 games. Another 3500 games from Mega and from correspondence chess have been added to this corpus.
€9.90
Ben-Oni Powerbook 2020
The Ben-Oni Powerbook 2020 consists for the greater part of engine games (44 600), to which has been added high-value material from Mega and the Correspondence Database (23 600).
The Ben-Oni Powerbook 2020 consists for the greater part of engine games (44 600), to which has been added high-value material from Mega and the Correspondence Database (23 600).
€9.90
Volga Benko Gambit Powerbook 2020
The Volga Benko Gambit Powerbook 2020 is based on over 21 000 games from the engine room of playchess.com and also 12 000 games from Mega 2020 and the Correspondence Database 2020
The Volga Benko Gambit Powerbook 2020 is based on over 21 000 games from the engine room of playchess.com and also 12 000 games from Mega 2020 and the Correspondence Database 2020
€9.90
Najdorf Powerbook 2020
The Najdorf Powerbook 2020 has a tree structure which is based on 3.69 million computer chess games played in the engine room of playchess.com.
The Najdorf Powerbook 2020 has a tree structure which is based on 3.69 million computer chess games played in the engine room of playchess.com.
€9.90
Rossolimo-Moscow Powerbook 2020
The greater part of the material on which the Rossolimo/Moscow Powerbook 2020 is based comes from the engine room of playchess.com: 226.000 games. This imposing amount is supplemented by some 25 000 games from Mega and from Correspondence Chess.
The greater part of the material on which the Rossolimo/Moscow Powerbook 2020 is based comes from the engine room of playchess.com: 226.000 games. This imposing amount is supplemented by some 25 000 games from Mega and from Correspondence Chess.
€9.90
Caro-Kann Powerbook 2020
The major part of the material on which the Caro-Kann Powerbook 2020 is based is taken from the engine room of playchess.com: 725 000 games. To that imposing corpus we have added another 48 000 games from Mega and from correspondence chess.
The major part of the material on which the Caro-Kann Powerbook 2020 is based is taken from the engine room of playchess.com: 725 000 games. To that imposing corpus we have added another 48 000 games from Mega and from correspondence chess.
€9.90
Gruenfeld Defence Powerbook 2019
The major part of the material on which the Grünfeld Defence Powerbook 2019 is based comes from the engine room of playchess.com: 219 000 games. To this imposing mass we have added another 60 000 games from Mega and from correspondence chess.
The major part of the material on which the Grünfeld Defence Powerbook 2019 is based comes from the engine room of playchess.com: 219 000 games. To this imposing mass we have added another 60 000 games from Mega and from correspondence chess.
€9.90
Ruy Lopez Powerbook 2019
The Ruy Lopez Powerbook 2019 has a tree structure based on1.95 million computer chess games played in the engine room of playchess.com.
The Ruy Lopez Powerbook 2019 has a tree structure based on1.95 million computer chess games played in the engine room of playchess.com.
€9.90
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