Chess opening database with names

[Frank Quisinsky]

Hi Gerd,

the best what I found ...
An opening book (literature) about B01.
The author of the book (a Grandmaster) wrote to line x ... balanced, a bit better for white.
And wrote to the same line (after move transposition) in the same book a bit later ... clear better position for white.
But I like chess books where such mistakes are inside ... we are humans.
For FEOBOS project I checked over 200 strong opening books (literature).

With move transposition we all have problems!
Opening books for engines are full of move transpositions and I wonder why eng-eng matches have often the same start position.

For FEOBOS we sorted out the move transposition, FEOBOS databases in *.pgn / *.epd are available with and without move transpositions.

Very danger (sorted out move transpositions) because I sorted out the main line often!
That's the weak point from FEOBOS I think (for the FEOBOS database without move transpositions).

But for eng-eng testing is only the end position interesting.

Of course: Over 80 end positions I found in chessbase high quality games have a wrong way, blunders inside the games on the way to the end position. I think mistakes by the editors of games. Unfortunately, all the mistakes are today available in opening books for chess engines ... again and again. The first things I check, if I am looking in the work by a person created an opening books for chess engines. So I know the sources the person used because most of available books are public without any documantation.

Same for Sahovski database on CD ...
Inside are move transposition with blunders (but I found here 4 or 5 only).

Absolutely favorite opening book for chess engines:
The Hiarcs book (the author must added line for line per hand, full hand tuned).
The evaluation for lines are not to 100% right (maybe for Hiarcs) but the work is absolutely high quality!!
Maybe the biggest expert in computer chess for opening lines is the author of the Hiarcs book.

Back:
What I found I deleted for FEOBOS project but I am sure that such position are inside the FEOBOS basic files. Maybe a handfull? I check that very often.

A main topic for myself after 4 years hard work around the FEOBOS database, later 10 engines analyzed one year with billions of nps. 60 sites documenatation I wrote and Excel file with more as 1.6 million formula are available to our project. We developed an own ranking system for all the balanced lines inside FEOBOS.

Best
Frank

[Graham Banks]

https://www.computerchess.org.uk/ccrl/4 ... y_eco.html

https://www.computerchess.org.uk/ccrl/4 ... y_eco.html

[Gerd Isenberg]

Hi Gerd,

the best what I found ...
An opening book (literature) about B01.
The author of the book (a Grandmaster) wrote to line x ... balanced, a bit better for white.
And wrote to the same line (after move transposition) in the same book a bit later ... clear better position for white.
But I like chess books where such mistakes are inside ... we are humans.
For FEOBOS project I checked over 200 strong opening books (literature).

With move transposition we all have problems!
Opening books for engines are full of move transpositions and I wonder why eng-eng matches have often the same start position.

For FEOBOS we sorted out the move transposition, FEOBOS databases in *.pgn / *.epd are available with and without move transpositions.

Very danger (sorted out move transpositions) because I sorted out the main line often!
That's the weak point from FEOBOS I think (for the FEOBOS database without move transpositions).

But for eng-eng testing is only the end position interesting.

Of course: Over 80 end positions I found in chessbase high quality games have a wrong way, blunders inside the games on the way to the end position. I think mistakes by the editors of games. Unfortunately, all the mistakes are today available in opening books for chess engines ... again and again. The first things I check, if I am looking in the work by a person created an opening books for chess engines. So I know the sources the person used because most of available books are public without any documantation.

Same for Sahovski database on CD ...
Inside are move transposition with blunders (but I found here 4 or 5 only).

Absolutely favorite opening book for chess engines:
The Hiarcs book (the author must added line for line per hand, full hand tuned).
The evaluation for lines are not to 100% right (maybe for Hiarcs) but the work is absolutely high quality!!
Maybe the biggest expert in computer chess for opening lines is the author of the Hiarcs book.

Back:
What I found I deleted for FEOBOS project but I am sure that such position are inside the FEOBOS basic files. Maybe a handfull? I check that very often.

A main topic for myself after 4 years hard work around the FEOBOS database, later 10 engines analyzed one year with billions of nps. 60 sites documenatation I wrote and Excel file with more as 1.6 million formula are available to our project. We developed an own ranking system for all the balanced lines inside FEOBOS.

Best
Frank

Hi Frank,

I was not aware of FEOBOS aka Frank's Enycloapedia Of Balanced Opening Systems - will have a closer look.

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bc4 Spanish or Italian?

My proposal to handle ambiguous opening classifications:

The opening move sequence from the initial position until end of book determines not only the current opening name and ECO, but a sequence of ECO codes. Usually it starts with a general ECO code, switching to more specialized variations with the same classification letter (A-E) and subcategory (00..99) increments. While still inside the opening book, if the classifications letter changes after say N=6 ply, or the subcategory changes with a delta of greater than X=10 (where N and X are possibly depending on the previous matched ECO), we are in a line with ambiguous classifications, and may apply an ambiguous solver to classify the opening, for instance B01 (A35, B14, D26) or in a more descriptive way "Starting as Scandinavian, the position {Move Number} may also occur from other lines of play, i.e. Caro Kann, Symmetrical English, Queens Gambit".

One may even probe color flipped position for more information.

Best regards,
Gerd

[Frank Quisinsky]

Hi Gerd,

yes, thats right.

After all the work Klaus Wlotzka and myself do around FEOBOS I am quit sure that the ECO classification have to many weak points / holes. Rarely openings with an own ECO-Code number can't be right, for an example. Other ECO codes are to big with all the important lines inside. The move transposition are very often difficult (easy example you build is good). What you wrote made sense but to develope a new tool for the bad ECO classifictation is maybe waste of time?! I am quit sure that the opening classification will be overwork in the next 20 years.

The "ambiguous solver"
I can't understand the GUI like Chessbase have here so many problems to allocote the right ECO code. So many Grandmasters and opening experts are working here and nobady viewed the problems? The same for others GUIs.

That's the question!?
Will make it sense or not to work on such a better "Ambiguous Solver".

Back to FEOBOS:
The documentation is in German language available (*.pdf file).
Maybe the "Frank" in the name isn't good but I gave the children a name!
If you have time you can read it if you like.

Interesting is:
I collected all the balanced opening position to all of the ECO codes I can find or engines find out, three moves after ECO code formed. Grandmasters I have contact like to search new ways for most popular opening systems in computer chess games. FEOBOS will give here the perfect basics, the still running FCP Tourney-2020. Not my topic or main idea in times I started the project. For me is most important that I have enough balanced positions to each of the ECO codes for eng-eng matches / tournaments ... without all the positions forced 3-fold. So FEOBOS got contempt settings and an own developed ranking system.

Example:
In one of the 41.614 position 10 engines found 9 different best moves without to give a 0,00 eval.
Most important criteria and the position is on place 1 in our ranking system.
With such positions we can build a very big tree, perfect for engine testing and avoid doubles.

Best
Frank

[Guenther]

Hi Guenther,

...

Sergio Samarian:
"Internationales Schlüsselbuch der Schach-Eröffnungen (International Opening Keys)"
Old ISBN: 3-88805-299-8

An old "MUST HAVE" chess book!
Today often available in eBay or antiquarian book shops.
A very small overview, only ECO codes, name of line and the moves.

I added the lines from the Samarian book in a Shredder.bkt with priorities (opening book format for Shredder GUI).
If I forgot a line I like to use the overview by Sergio.

6 small errors I found in the Samarian book only!

Generally, I like it much more to looking in literature.
The learn effect is higher as to use computer material only!
Old-modern view but I like it so much!

Best
Frank

Günther, if you like I can send you the Samarian book (I have two or three I think).
A little gift for you for all the work you do on your RWBC web site from my side.

Thanks for the offer Frank!
I fear I have too much books here for reading (modern literature) and I have already
given away most of my chess books, except a few, because they are mostly lying
around for long.

[Frank Quisinsky]

Hi Günther,

yes to find out which of all the available books are interesting is really a long time job.
My own library is very modern.
Most of the good and old chess book are available with modern diagrams in newer editions.
The reason I haven't many of the older books in my collection.

But you are right, not all of the chess books are really interesting.
Often you can read the same from different authors.

It is a little chance for strong chessplayers to make money.
I am happy with all the chess books in my collection and like it to read here more as to look in databases on PC.

Tomorrow I will start reading the "Quality Chess" book "Anand files".



Best
Frank

[Guenther]

Hi Günther,

yes to find out which of all the available books are interesting is really a long time job.
My own library is very modern.
Most of the good and old chess book are available with modern diagrams in newer editions.
The reason I haven't many of the older books in my collection.

But you are right, not all of the chess books are really interesting.
Often you can read the same from different authors.

It is a little chance for strong chessplayers to make money.
I am happy with all the chess books in my collection and like it to read here more as to look in databases on PC.

Tomorrow I will start reading the "Quality Chess" book "Anand files".

:-)

Best
Frank

A slight missunderstanding, with 'modern literature' I really was talking about literature not about (modern) chess books.

I hardly read chess books at all anymore, at least no paper books. Ok sometimes I still look into the huge L. Polgar
'Chess Middlegames' book, which actually 'only' contains positions sorted by themes and their solutions appended.