Manual de Fritz 15 2015 | Page 178
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Fritz 15 Help
3.5.16.8 Let’s Check context menu
Right clicking in the Let’s Check window opens a context menu with various functions:
Show User information: This displays information about the user whose analyses
have been sent to the Live Book. This is only possible if he has a user name on the
Playchess.com server. In the dialog window there is a section containing the
statistics. This shows the number of points the user has, and the number of variations
he has won. The number of points depends on the value of the positions that have
been analysed. The window only contains the total points reached. The number of
variations is a number that can change at any time, if another user stores a deeper
analysis for this variation. The window also shows how many Likes the user’s lines and
comments have been given by other users.
Annotate Position: This inserts the analysis of other users into the game notation.
Right click in the Let’s Check window and then click on “Annotate Position”. This
copies the analyses from the Let’s Check database nested up to four levels deep. Only
variations are used that have at least a “green level”.
After clicking on the function the evaluation is copied into the notation.
Copy lines to notation: This copies all existing variations (not just the selected
variations) into the notation.
The following is an example of copying lines into the notation:
What does “Engine/Game Correlation” mean at the top of the notation after the
Let’s Check analysis?
This value shows the relation between the moves made in the game and those
suggested by the engines. This correlation isn’t a sign of computer cheating, because
strong players can reach high values in tactically simple games. There are historic
games in which the correlation is above 70%. Only low values say anything, because
these are sufficient to disprove the illegal use of computers in a game. Among the top
10 grandmasters it is usual to find they win their games with a correlation value of
more than 50%. Even if different chess programs agree in suggesting the same
variation for a position, it does not mean that these must be the best moves. The
current record for the highest correlation (October 13th 2011) is 98% in the game
Feller-Sethuraman, Paris Championship 2010. This precision is apparent in Feller’s other
games in this tournament and results in an Elo performance of 2859 that made him the
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