8

Using my free, open source pgn-extract program you can specify a grep-like FEN pattern to be searched for in a PGN file of games. The program comes with a file of opening lines (eco.pgn) so a search such as: pgn-extract --fenpattern "*/*/*/*/3PP3/2P2P2/PP4PP/RNBQKBNR" eco.pgn would output any matches along with the associated ECO information in ...


7

As kentdjb already noted, there is no variation with that exact position which has an ECO entry. But it happened in sub lines of some ECO codes. I did a search on this database (only contains GM games and games before 1900). Both pgn-extract and this CQL query ... cql() Ra1 Nb1 Bc1 Qd1 Ke1 Bf1 Ng1 Rh1 Pa2 Pb2 Pc3 Pd4 Pe4 Pf3 Pg2 Ph2 ... find 40 results. ...


5

Here are the percentages for each promotion type according to different sources: |Promotion type | ChessBase | TWIC | ICCF | -------------------------------------------- | Queen | 96.9 | 97.3 | 96.1 | | Rook | 1.1 | 1.1 | 1.7 | | Knight | 1.8 | 1.3 | 1.7 | | Bishop | 0.2 | 0.3 | 0.5 | Details: ...


4

SCID's Opening Report shows some statistics which may be useful here. From a given position, one of the things it does is generate a table which shows what moves are common from a given position: 4.2 Moves from the report position Move ECO Frequency Score AvElo Perf AvYear %Draws 1: Nf3 E10a 8561: 50.8% 56.1% 2622 2665 2009 56% ...


4

Is there a data file somewhere containing every single (FIDE) rated game? As an arbiter I can tell you definitively that the answer is "No". However you don't need to be an arbiter to know that. You just need to have played in a FIDE rated blitz tournament. Nobody is writing the moves down in those tournaments. In FIDE rapid tournaments you do get ...


3

How do I get this data into a spreadsheet like column 1 is all the dates, column 2 is the corresponding white elo, column 3 black elo, col4 white username and col5 black username? From the .pgn file downloaded at https://api.chess.com/pub/player/gmwso/games/2020/12/pgn I have created a file called chess_games.xlsx and I have inserted the five values you are ...


3

Yes, it's possible to obtain the data you want. Chess.com has a REST API which is described in the following news post: https://www.chess.com/news/view/published-data-api You can use the following URL to get a list of monthly archives of a players games: https://api.chess.com/pub/player/{username}/games/archives In this list you will find URLs which look ...


3

It sounds like what you want is a free database which is not copyrighted and not licensed. The best one I know of that fits that bill is Caissabase. It is a free download with no license and this explicit statement of no copyright: Legal/Copyright Where I live facts are not copyrightable, Chess moves played in a game are facts. You'll notice there are no ...


3

I don´t think chess games are copyrightable, as they´re just a collection of facts, so games of chess are not considered by the courts to be anyone´s property. I would say that you are free to comercially reproduce a game, as long it´s just that, the moves played in that game. To put in perspective, if you took a screenshot of the result of a videogame, for ...


2

This is the link for SmallChess's Python repository for web crawling chess games I found it, just click here : https://github.com/pmerg/ExtractPGN


2

The issue isn't with the software but more with the database itself. I rebuilt the Good Games Index, and that appeared to fix the issue you are facing for me. That being said many of the Blitz Games that would often get captured in your scope are actually really pretty solid games and worth reviewing.


2

It would be fun to create a decission tree based on all those games, however, I don´t think there´s anything like that, at least publicly. Besides, you´re probably making an understimation, as right now there are 360,000 fide rated players. The biggest public chessdatabases are Chess Microbase Chess Tempo Chess-DB (and I think this latter was closed)


2

Python has a pgn parser as part of its chess library. https://python-chess.readthedocs.io/en/latest/


1

The Tarrasch Chess GUI is an open source, free Windows download. It uses a proprietary database format and the author approached Mark Crowther, the brains behind TWIC to ask if he could use Mark's database of games. Mark agreed but part of the way Mark makes his living is by selling his full database. There is an export to pgn format function in TCG but to ...


1

Update 2: Fixed now. see the 'json' vs the 'preformed'. WOW. Update 1: It appears Mike Steelson has an answer here, where the code is given as =arrayformula( regexextract(split( substitute(substitute(substitute(getDataJSON(A1;"/games";"/pgn");"[";"");"]";"");"""";"") ;...


1

First, worth noting that this question has nothing to do with chess. It is a programming question and a simple one at that. The answer is very simple. Write a program to read the files and parse them. The pseudo-code looks something like this: Read the file For each line find and extract any keywords like "WhiteELO", "UTCDate", etc. If ...


1

There doesn't appear to be a way to do this directly. There's a predetermined list of columns available, and this isn't one of the choices. And, while the ECO Code field will allow you to type in a different ECO code than the one it auto-detects, it won't save anything other than a valid ECO code, so you can't just type in something like "Sicilian" ...


1

It is good to review games to see why you lost. Just tracking your alleged 'rating' per some engine after each game is useless as you 'rating' is not that stable until you have a lot of experience and even then there is a wide variation on any given day for most players.


1

Try the chess.com website. They have plenty of resources available. They also have a fully trained neural net which evaluated and scores your games with the aim to improve the player and facilitate their learning process.


1

I would add the Lichess Elite Database to the list :-) It is the best of lichess games: only higher-rated players in "decent" time controls (aka no bullet).


1

There's no one singular database with all games recorded- it is fairly simple to see this is impossible. Say, a top player played a casual game against their second or trainer, perhaps for training purposes or to test out an opening variation or something. We may record the moves for our future analysis, but would it end up in any databases? No, because we ...


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