Tag Archives: how to read chess engine analysis

The “Compare” chess analysis function in Fritz 13

We’ve already discussed the “Full analysis” and “Blundercheck” analysis functions in the Fritz family of playing programs (Fritz 13, Junior 12, Hiarcs 13, Shredder 12, and Rybka 4). But there’s a third method of analyzing games which we’ve not yet considered. I recently saw a comment in which a user appeared concerned that Fritz only pointed out a user’s errors, and didn’t provide an “attaboy!” for good moves in the analysis modes which we’ve previously explored. My response to that concern is that the “attaboys” are implicit rather than explicit; if Fritz isn’t criticizing a move, then it’s safe to assume that the move was sufficient (at least relatively, given the “Threshold” parameter that’s used in the game’s analysis).

But there is a way to get Fritz’s opinion on every move in a game, as well as to have multiple engines analyze a game in one go. It’s called “Compare analysis”, and it’s the topic of today’s uscfsales.com blog post. Continue reading

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Fritz13 chess software – Contributing an engine to “Let’s Check”

In last week’s post we learned how to submit positions for analysis to the worldwide community of Fritz13 users. Each time you submit a position, it costs you a credit – which obviously leads to a followup question: how do you earn more credits? That’s the question we’ll answer today… Continue reading

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Fritz13’s “Let’s Check” – Submitting a position for analysis

Every player has run into knotty chess positions from time to time. I recall a variation from the Encyclopedia of Chess Openings that used to baffle me; the evaluation said that White had a “won” game, but I just couldn’t find it. I remember sitting in a local pub with the position set up on an analysis set, just staring at the board for so long that the barmaid thought I’d passed out or fallen asleep with my chin on my chest; a couple of my chessplaying friends soon showed up and we had a lively debate about the merits of the position.

One of the benefits of today’s chessplaying computer software, like Fritz13 from USCFSales.com, is that you can use the chess engine to analyze any position anytime you choose. And the plethora of available engines allows you to get multiple “opinions” and evaluations. But analysis by multiple engines takes time, though, which is why the Fritz13 “Let’s Check” distributed computing features are so revolutionary – many, many players are ausing a variety of chess engines to analyze positions and are then storing those analyses on a central server, accessible by other Fritz13 users in mere seconds. Continue reading

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Chess game analysis using Fritz13’s “Let’s Check”

We learned about “discovering a position”, a basic feature of Fritz13’s “Let’s Check” analysis system in the last blog post. This time around in USCFSales’ blog we’ll tackle another “Let’s Check” feature: analysis of complete games. Continue reading

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Fritz13 chess software – “Discovering” positions

As fast as modern PC hardware can operate, there are still some jobs which are just too big for one machine to handle. That’s a basic idea behind distributed computing: dividing a large computational task between multiple machines. Another basic idea concerns the avoidance of repetition: why have a computer repeat a task that another computer has already completed? Both of these ideas are the core concepts behind the new “Let’s Check” features found in the Fritz13 chess playing and analysis program from USCFSales. Continue reading

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“Deep position analysis” in the Fritz/Rybka chess playing program

If you haven’t yet read the immediately previous post to this blog, I encourage you to do so – otherwise the rest of this post might not make much sense. In that last post, we discussed the difference between the way an over the board (face to face) chessplayer analyzes a particular board position, and the way a correspondence player would analyze the same position. The over the board player must look at a static position, decide on two or three candidate moves, and try to mentally visualize the consequences of each candidate as far ahead as he can. That’s exactly how a chess program like one of the Fritz family (Fritz, Rybka, Hiarcs, Junior, and Shredder) analyzes a position in “Infinite analysis” mode. A correspondence player, however, is free to move pieces around, examine many, many candidate moves and, after deciding on one, move a piece physically and analyze that move, deciding on candidates, etc. (often by moving pieces without the necessity of “in the head” visualization) and record the moves/analysis as he sees fit. That’s similar to the style of computer analysis (which I call “creeping” analysis) which was discussed in the previous post: manually advancing the engine one move at a time, each time adding the top-evaluated candidate to a growing line of analysis. Continue reading

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“Creeping” chess analysis in Fritz/Rybka

In the previous blog post we examined a basic use for the “Infinite analysis” feature in the Fritz “family” of chess playing programs (Fritz, Rybka, Hiarcs, Shredder, and Junior). This time around we’re going to learn another way to use this feature, a method which is a bit more time-intensive but which yields interesting results. Continue reading

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