Analysis (chess)
The analysis of a chess game is the systematic play through of the game after the end of the game ( post-mortem analysis ) in order to arrive at the most accurate possible evaluation of the position for each game situation and to uncover inferior moves. In addition, especially with master duels, there is a simultaneous analysis carried out during games in which a chess master - in a separate room - comments on the ongoing games for the audience. This commentary analysis is often also offered for chess broadcasts on the Internet , for example on chess servers .
The symbols known from the chess informator are often used for the written game commentary . These have the advantage that they can be understood internationally. For less advanced players, however, verbal comments, in which the respective positional characteristics and the resulting plans are shown, are more helpful.
In game analyzes recorded in writing, symbols behind a move can mean an evaluation of this move, but they can also give an assessment of the position. These symbols are used both for the moves played in the game and for the analysis variants occurring in the notes. Some common symbols are as follows:
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Several chess programs can also analyze games automatically. A search is carried out for every position occurring in the game. The move determined with the best evaluation is then compared with the move actually played. If the difference in the evaluation exceeds a certain threshold value, the move played is marked as a fault. Tactical errors are usually reliably detected even with short computing times, while positional factors are occasionally misjudged.