Is my analysis always sent to Let's Check?

     

No. Clicking the button "Disconnect" breaks the connection and no more data is sent via the Internet.

 

 

Can Let’s Check be used anonymously?      

Let's Check can be used without logging into a Playchess.com account. In this case you will receive no information about who analysed which position.

 

 

What does it cost?      

The use of Let's Check is included in the price of Fritz 13. It is guaranteed that Fritz 13 will support this feature until the end of 2014.

 

 

What difference does the power of my computer make?    

Fritz regularly performs speed checks on your computer. Fast computers are at an advantage. By contributing your engine you can process more positions in the same time and win "credits". Deep engines also have a strong advantage. Analysing in multi-variation mode needs more time. If you log into your Playchess.com account your "speed index" will be displayed in the Chat window.

 

 

What engines are allowed?      

Every engine that can be used in the Fritz user interface can be used for Let's Check.

 

 

Can variations and evaluations be manipulated?

Since Let's Check is open for all engines it is possible that old, bad or manipulated engines can be used. Destructive content is always possible whenever people can share content in any form of online community. The hardware power and the processing time of variations play a role, so it will be difficult to falsify an analysis even if an engine has reported having made the deepest analysis.  In the Let's Check window we also see how often a variation has been verified by other users. The system cleans itself, and so unverified variations and the obsolete evaluations of older engines will disappear with time.

 

 

Can senseless moves be input and analysed?

All legal positions and moves are valid for analysis. Rarely visited moves without deep analysis expire after a while.

If you don't want to see any senseless moves you should check the option "Hide rare moves".

 

 

How are the Let's Check honours lists created?

Points are awarded for winning a variation. The number of points depends on the popularity of the position and the time spent calculating it. The starting position is the most valuable position because it is visited the most. If you lose a variation to someone else you lose some of the points you were awarded for winning this variation, so your points can fall when you are not active.

 

What do the two diagrams in the LiveBook window mean?      

The left (or upper) diagram shows the most popular position, i.e. the position that is being analysed by the most visitors. The right (or lower) diagram shows positions that have been reported as discovered or won in the Chat window.

 

 

Clicking on a won/discovered message in the Chat windows displays this position. This position can be copied into the main board (Home - Paste Position). Then the moves of the variation can be played backwards, if they are known to the system.

 

 

Can a text commentary be edited or deleted?

You can edit or delete your own comments until someone else clicks "Like" or "Dislike". Comments can be changed by right clicking on them. Administrators can correct spelling mistakes or delete comments if they violate copyrights or do not make a chess-related comment on the position. Copyright is deemed to to have been violated if comments are taken from a source that exceed the amount of usually accepted quoting.