Move evaluation in analysis

Answer

Question:  When I play through a broadcast game or carry out a tactical analysis the program adds at the end of the notation an accuracy value. How should I interpret this value?

Answer: This information can be found, for example, in the game notation for our live broadcasts. In many game notations there is an engine running in the background which adds short comments to contribute to a better understanding of each position. The engine adds to the game notation hints about the opening, hints about possible threats and better continuations in the form of variations. The value at the end of the notation gives the percentage of continuations played in the game which agree with the evaluations of the engine.

The value thus shows the user the agreement between the move played in the game and the computer’s calculation in the form of a percentage. In doing so the program takes into account only moves which were not played in the opening phase and above all moves which were not forced.

Thus the moves evaluated are those which were freely chosen by the player and not forced.

If you employ tactical analysis in Fritz or ChessBase, a similar value is provided by the engine which you have activated on your computer for the analysis function. At the end of the game notation you will also find – according to the time setting – this more or less detailed information.

Accuracy: White =  57% (22/5/35), Black =  11% (6/7/33).

In this example of tactical analysis the percentage agreement of the engine with the freely chosen moves played in the game is also displayed.

In the brackets you will find the values for best moves, second best moves and the number of game moves evaluated.

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Created on
13.11.2019
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