29,90 €
Included with the brand new PowerFritz 18, the user gets several different databases, including the PowerBook 2022. This database contains over 25 million opening positions from 1.7 million selected tournament games. For each position, all moves, success rate and Elo average of the players who played at that position are stored. The Fritz Powerbook 2022 thus represents the current state of opening theory and the chess program thus mutates into an absolute theory expert.
This information stored in the database offers numerous options for exploring theory and your own training. In this article we will teach you the basics so that you can use the database efficiently with your new chess program.
All chess programs do not calculate the moves themselves in the initial phase of a game, but retrieve their moves from a pre-stored file, the so-called opening book. With the help of the opening library, the chess program ideally plays out moves that have been proven in tournament practice. The advantages are clear: the computer saves considerable thinking time because it does not have to calculate the moves and at the same time avoids gross strategic errors in the opening. In the current chess programs of the Fritz family, the library is in the form of a position tree, in which all stored moves are linked together. The special feature of the position tree is that a lot of important information is stored for each move.
Note: a concrete explanation of the displayed statistics can be found in the documentation of the program! -> F1 starts the help function.
With the help of this concept it is no problem at all to find out how often a certain move has been played, what success rate can be expected with it for the player moving up or down, or in which period a certain continuation has been used particularly often. Basically, a well-maintained position tree functions not only as a library, but also as a database for assessing and evaluating all sorts of questions that may arise in connection with opening theory.
The merits of the concept are significant:
The user can quickly and specifically prepare for a particular opening variation and examine all the moves played so far in this variation for their suitability. In addition, he can see at "a glance" where the theory known so far comes to an end and does not have to rummage through various chess books or electronic game databases first. Since the position tree is used by the chess program as an opening book at the same time, there is the possibility to try out and train the newly gained knowledge directly against the computer.
The chess programs use the information from the position tree creatively. If, for example, there are two moves to choose from in a given position, one of which has been played three times and with which the game has also been lost three times, but the other has a quota of 60% after 100 games, the program will interpret this information accordingly and play the more promising move. Another advantage of the concept is that the user can better influence and control the playout behavior in the opening.
Through a multitude of setting options, one can determine almost infinitely whether the program should only play the best moves or whether it should also select potentially worse moves in a more varied way. Furthermore, you can limit the preferences to the main variants or the side variants.
Another advantage of the position tree concept is that it is easy to supplement and update the tree by importing current games. This ensures that the library always remains up to date in terms of opening theory.
Note: the list is incomplete. All important functions can be found in the online documentation of the program!
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