Analyzing games with <i>Let's Check</i>

12/9/2011 – After demonstrating how Let's Check users contribute to the LiveBook for all the moves of a top game being broadcast, this brings to light another aspect of the Let's Check function: its use for game analysis. Let's Check can not only be used to provide comprehensive analysis of recent games, but you can even request others to analyze your games.

Analyzing games with Let's Check

After demonstrating how Let's Check users contribute to the LiveBook for all the moves of a top game being broadcast, this brings to light another aspect of the Let's Check function: its use for game analysis.

Let's Check can not only be used to provide comprehensive analysis of recent games, but even of your own games by request.

Retrieving LiveBook analysis

Those following the broadcasts of the London Chess Classic with Let's Check running, know that many users have powerful systems displaying top-engine analysis at great depth that others can see. These analyses can surpass our own, and just as importantly, provide evaluations and variations of up to three different engines. All these analyses are stored in the LiveBook for later perusal, and can then be added to the game notation at any time.

Bear in mind, you can request LiveBook analyses your own game to retrieve evaluations of positions that have already been seen. You never know when you will discover that an opening or middlegame you played hasn't already been seen and contributed from another source.


The first thing to do is to have the game you want analyzed visible in the notation


Next connect to Let's Check through the Engine tab at the top


Switch to the Analysis tab and click on "Let's Check Analysis"


A pane will open with several options. Standard Analysis is the option you want. Leave
User Names checked to see the users who contributed the lines, and Include Text
Comments, if any were added. (Note: you can contribute your own as well)


The end result will look as above, with up to three variations for every move, including
the evaluations, depth, and the engine signing them.


Here is a sample of the Let's Check analysis done for Carlsen-Nakamura:

NB: The javascript replayer does not display the evaluation and depth, however below it is a link to download the PGN, to visualize in the program of your choice.

Analyzing your own games

Another option is to enlist the help of others to analyze your games. Though Fritz can obviously analyze them from your own computer with the engine of your choice, this process does allow deeper analysis in a shorter period of time. The reason is that the server does not simply ask one move at a time, but rather sends off each position to a different user, and thus has numerous users split up the work of analyzing your game.

There is a cost, and it is not a monetary one. Each position you analyze and contribute to the LiveBook gives you credits, and each position for which you request analysis costs you credits. Thus, no one is able to simply take without giving.

The process for requesting game analysis is very simple and surprisingly fast depending on the number of users connected.


First make sure your game is visible in the Notation


Next, go to the Analysis pane and click on Submit Game. Within minutes you will see
variations and evaluations begin to populate the game score. Don't forget to save it!

Happy analysis!


Price: 49.90€, shipping immediately, per download or on DVD.

Order Fritz 13 here

When you click on the "To Cart" button you will get a choice of ordering the program on DVD to be delivered by post or whether you want it right away as a download from the shop.


Previous articles on Fritz 13 and Let's Check

Let's Check on Playchess
04.12.2011 – A lot has been made of the revolutionary effect Let's Check will have on openings study and preparation. While unquestionable, it brings more than this, since spectators run their engines using Let's Check, and the analysis is stored for all to see. Let's Check users also have fun competing to 'discover' a move while watching broadcasts on Playchess. Find out how you can stake your claim.
Fritz 13 and Let's Check at the Women's World Championship
25.11.2011 – What do the players in a world chess championship do immediately after their games? Rush off for dinner? No. Check their game with the computer? Warmer. Actually in Tirana the two GMs used, for the first time in such an event, the new feature of Fritz 13, "Let's Check", to see what spectators from all over the world had found in their games. Here's how it is done.
Fritz 13 and Let's Check – Lesson one: getting started
31.10.2011 – You have ordered Fritz 13, on DVD or as a download in the ChessBase Shop. And you have heard a lot about the new Let's Check function. How do you get started? In our tutorial series we begin with some very basic instructions on how to activate the program and then take a few initial steps into the world of cloud computing. Too daunting? Take a look – it's easier than you think.
Hoogeveen: Kramnik beats Polgar, leads by a full point
20.10.2011 – In round two Vladimir Kramnik beat Judit Polgar – as usual, we are tempted to say. In twenty classical encounters Judit still has to win a single one. At the end of this game Fritz 13 surprised people on Playchess by announcing mate in 45 moves – on a super-fast spectator machine. In rounds three and four all games were drawn, but some of them quite interesting. Report and commentary.
Fritz 13 is now available – let's check who needs it!
13.10.2011 – “Success very often is the enemy of future success," Garry Kasparov warned us some months ago. Changing the world once is not enough, he said, we needed to do it again. Well, we are trying. Today we launch Fritz 13, which incorporates a tantalizing new feature: "Let's Check", which provides communal analysis in the cloud. You can order it now or download it for instant access.

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