Blundercheck
Analysis – Blunder check
This does not provide a full analysis of a game, but simply a tactical examination, one that reveals glaring errors. There are a number of options in the blunder check dialog box:.
Side to analyse: You can restrict the analysis to the player of the white or black pieces, or to the winner or loser
(similar to the automatic analysis).
Output: If the game you are checking already contains annotations, you may not want the program's analysis buried in the variations. Select Annotate by Text to make it easier to find the remarks in the notation.
Full variations, Erase old annotations, Training: Select these choices to erase the old analysis, and have the variations written out in full. You can also specify to have training positions generated.
Storage, Time/depth, Threshold: You can determine the average search depth per move. Enter the minimum time the program should spend on a move. The threshold defines when a move is considered a mistake. If you enter a high value (e.g., 300 = three pawn units), then only grave blunders will be considered. If you set a very low value, the number of commentaries and variations will increase. If you set the threshold to zero, the program will annotate every move, even if there is nothing to say.
Check main lines/variations: Select the main line of the game to be checked, the variations, or both.
Storage: If you are blunder-checking one or more games in the database window (mark many and execute "Blundercheck"), then you can specify how to store the games after they have been checked. You can put them back into the same place in the database ( i.e., replace the original games); or append to the database (i.e., store again as a fresh copy).
Games in which the blunder check has revealed serious errors are marked with the black “Tactical blunder” medal; they can be easily found in the games list and with the search mask.
The name of the engine that was used in the blunder check is entered as a text commentary before the first move. If you analyse the game again with a different engine, the name of the engine with every new variation appears.