Find Blunders 4.07 (build 413)

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Topic Rybka Support & Discussion / Aquarium / Find Blunders 4.07 (build 413)

By Shaun Brewer (****)

Date 2011-04-27 21:10

I have been running 'Find Blunders' against my sons games - one thing I have noticed is that the blunder checking does not seem to start from the beginning of the game.

In the following example:

[Event "Live Chess"]
[Site "Chess.com"]
[Date "2010.10.14"]
[Round "?"]
[White "C-D-B"]
[Black "top11111111111111111"]
[Result "1-0"]
[BlackElo "896"]
[Classes "0"]
[ECO "?"]
[GameID "0"]
[TimeControl "20|10"]
[WhiteElo "1146"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nxe4 4. Qe2 Nf6 5. Nc6+ Be7 6. Nxd8 Kxd8 7. d4 1-0

Blunder check did not highlight any blunders? 4...Nf6 is a blunder.

My settings for blunder check would have allowed the engine more than enough time to spot the blunder.

In the 'Find Blunders' options there does not seem to be anything that should stop analysis starting from the start of the game?

As a side question is there a better way to look for these early bluders, e.g. if I used IDeA to analyse all the positions from the first n moves in his games I would only analyse a position once but how would I then identify games with blunders in and include the IDeA analysis - without a lot of manual effort.

Shaun

By Vempele (Silver)

Date 2011-04-27 21:15 Edited 2011-04-27 21:21

> In the 'Find Blunders' options there does not seem to be anything that should stop analysis starting from the start of the game?

It uses a [database|tree] to determine [end-of-book condition] and starts blundercheck from there. 4...Nf6 has been played 29 times in d2m. White's replies include 5. Nc3 and 5. Qc4. One game went 5. Nc3 Bc5 and Black won.

By Shaun Brewer (****)

Date 2011-04-27 21:24

Thanks...

This is what I suspected - where can I set the [database/tree] used or remove it?

Thanks again

Shaun

By Vempele (Silver)

Date 2011-04-28 12:21 Edited 2011-04-28 12:50

Edit: I was wrong. nebulus is right.

By nebulus (****)

Date 2011-04-28 12:43

I don't think it's going to work. It uses \ATrees\cap.* files.

@Shaun Brewer
Close Aquarium, rename cap files, copy cap files you have in \AScripts\DATA\Atrees (otherwise blunder check won't work and you'll get an exception) to \ATrees\ folder, run Aquarium again.

By Shaun Brewer (****)

Date 2011-04-28 15:53

Thanks

worked!!!

It would be good to be able to choose which tree was used to eliminate moves/positions from Find Blunders.... and perhaps the results from the tree should be used (obviously) identified as to where the analysis was from.

Shaun

By nebulus (****)

Date 2011-04-28 22:30

BTW, you can edit the references to CAP in your tree configurations and point to your renamed, significantly larger files. I don't know if there any downsides of using small CAP files when it comes to Game Analysis. I personally couldn't see any, but then again I haven't tested it thoroughly.

By Shaun Brewer (****)

Date 2011-04-29 20:58

I have created a bat file to switch the cap versions, and I am quite happy with that at the moment...

I am currently re-analyising my son's games for blunders - it would be nice if you could specify the tree and also the move range e.g. Look for blunders in the openning*

*Or perhaps stop after a blunder > n pawns??? Typically I am just interested in showing him the first blunder otherwise the feedback is to negative.

Thanks again Shaun

By T-Bone

Date 2011-04-28 01:38

I got the following with the default settings in Aquarium build 413. Looks like it is working to me. Fast too!

By Shaun Brewer (****)

Date 2011-04-28 08:17

Thanks for checking this do you have the large databases and trees installed?

Shaun

By T-Bone

Date 2011-04-28 11:32 Edited 2011-04-28 11:34

When I go to the tree tab and hit the little options tool I only have Eval and CAP listed. I did install the HUGE database that I got for free when I bought Rybka 4/Aquarium. However, I'm not at all certain they are used in the blunder check like it is in game analysis. Did you try just with settings like these? Also what engine are you using if I may ask?