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Opening Database Info

You can choose between the following opening databases:

  • Huge Book
    This database contains about 16.3 million moves from chess grandmaster games and gives you a survey what ever has been played by strong human chess players. The size of the opening database is about 1 GB.
  • Shredder 9 Book
    This database is included in the Shredder 9 and Deep Shredder 9 distributions. It contains about 1.2 million chess moves. Each move has a value associated with it. Its size is about 95 MB.
  • Shredder 10 Book
    This database is included in the Shredder 10 and Deep Shredder 10 distributions. It contains about 1.3 million chess moves. Each move has a value associated with it. Its size is about 96 MB.
  • Shredder 11 Book
    This database is included in the Shredder 11 and Deep Shredder 11 distributions. It contains about 1.3 million chess moves. Each move has a value associated with it. Its size is about 97 MB.


An chess opening database or opening book is a huge chess database. For each chess position in the database a list of moves is stored. For each move the following information is available:

  • Value
    A value that could be associated with this move. Shredder uses the values from a-f. a is for a good move, f for a bad move.
  • Games
    The number of times this move has been played.
  • Perc.
    The result of the games in percent in which this move has been played. The number indicates how many games were won when playing this move.
  • Elo
    The average Elo rating of the players playing this move.
  • Perf.
    The Elo performance achieved when playing this move.
  • Year
    The average year in which this move has been played.
  • Wins/Draws/Losses
    The number of won, drawn and lost games with this move.
 
Shredder Classic 4 Shredder Classic 4
EUR 29.99
Deep Shredder 12 Linux Deep Shredder 12 Linux
EUR 99.99
Chess Tutor Step 3 Chess Tutor Step 3
EUR 19.95
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