Questions tagged [database]

A set of chess games, distributed as a stand-alone product or as part of a bundle of chess software. For endgame databases, use the [tablebases] tag instead.

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149 views

software for a survey of chess openings

Is there any a free software or free pgn files that presents a survey of all openings and their variations (the deeper the best) similar to those found in chess opening references like MCO or ECO ? I ...
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Pawn Structure database

I wonder if there is any existing or a way to create a chess database organised only according to pawn structures, where the notion of a pawn structures is crudely defined by GM Andrew Soltis in his ...
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Meaning of winning percentage

I was wondering about the exact meaning of winning percentage (white/draw/black) in database systems and how to use them for studying. How are move order variations taken care of? For instance, if I ...
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295 views

Fritz for Fun 13: how do I add positions to a new database?

My aim is to create a database of endgame positions taken from Van Perlo's Endgame Tactics in Fritz for Fun 13. I've created a new database, but I do not know how to add games or positions. How do I ...
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Unit Testing a chess board representation

So this is a bit of outlier question. I am writing a chess library, essentially from scratch. You can find much of the code here, with the intention of using it for a GUI and/or an engine. (The game ...
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How can I open a .cbh databse

On my old windows-pc I created a database of my games on fritz 11 which I then uploaded to googledrive. The database is a .cbh file. My old computer broke and I'd like to re-open this database. As I ...
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1answer
150 views

Query for games where the difference of player ratings was big

I want to run a query on a chess games collection which would give me games played by strong players vs weak players, let's say games from the first round of Open tournaments (Swiss system) where ...
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1answer
304 views

Is it still possible to develop new openings?

I have been using this opening that I accidentally started using a lot and then got good results in Blitz games. I'm almost sure it won't last a chance in standard games but it made me curious about a ...
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1answer
4k views

What's the difference between SCID and SCID vs PC?

I've got two files installed on my site from SCID & SCID vs PC - Scid vs PC-4.16.x64 & Scid-4.6.2. How are they different ? Or are they just the same ? Which one should I delete if it is a ...
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chess win expectancy by material difference table or calculator

Houdini Chess engine is said to have a calibrated evaluation in which engine scores correlate directly with the win expectancy in the position. A +1.00 pawn advantage gives a 80% chance of winning the ...
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What is the best way to document and archive my past games?

I am looking for more sophisticated solutions for documenting, archiving and analysing my past games. Right now I have a folder filled with PGN files. What systems have proved to work well?
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1answer
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Is there a chess move history app (Mac)?

I would like to check various positions to see if I have reached them in the past. I play on lichess.org which lets you download your complete game history as a pgn. I was wondering if anyone knew of ...
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1answer
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USCF player question

I was looking at the list of uscf players (as anyone can through WinTD) and two columns in a dataset, downloadable through the program, are titled RSUPP_NUM, R_PLR_TYP. Does anyone have any idea what ...
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Meaning of move stats in opening databases

I naively thought that if I picked the biggest winning move (for example using white) in the database and kept picking moves that white would always win, but at some point the advantage for white ...
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New to SCID, Where should I begin?

I read "SCID database" mentioned many times in different chess forums. As a regular chessbase/pgn user, I wonder what difference it makes and where I should begin. Thanks!
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Is there a way (or tool) to convert games in PGN to notations like the one in the description?

Example: White: Kd6, Rh6 Black: Kd8 1.? Background story: I'm thinking of creating material for developing the visualization skills of my students. If I can convert easy problems to text notations ...
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1k views

How do people use chess software to improve their practical skills?

I'm currently using chesstempo to get better at tactics, reading books on strategy, analyzing grandmasters' games, etc. My current rating is around 1800 and I am planning to gain 200-300 points ...
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1answer
2k views

How do you convert a scid database into a pgn database?

So I got a big scid database and ScidvsMac. I would like to convert the complete database into a pgn database. So far I have only found out how to convert single games into pgn, something I'm not keen ...
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1answer
199 views

Endgame Databases

I am looking to practice endgames against a computer by having a decent number (lets say 500+) of positions loaded into a database. Currently I am taking positions from various endgame books as well ...
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1answer
774 views

Database of analysed positions with corresponding scores

I am looking for a database with many various chess positions with a corresponding engine score. Something like (position, score): 6r1/3k4/4b1rB/p2p1R2/1pp5/8/PP5Q/7K w - - 1 39 1.25 rn2nrk1/...
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Are there any (free) games databases out there?

I am searching for a broad and extensive games database (i.e. games played between real players.) I can hardly seem to find any (even paid ones.) - However all sorts of chess software has these built ...
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3answers
3k views

Java Library for PGN parser

I would like to find a Java library that will allow me to read a PGN file that could contain several chess games, probably with comments inserted also. But, it won't be used to generate moves or play ...
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364 views

Random position from database

How do I get a random position in chessbase 13 software from megadatabase to guess the best move , is this facility available in chessbase software which is availabe is softwares like Chess Hero, Or ...
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Freely available PGN databases

I am looking for a relatively large PGN-formatted database (with at least 500k+ games), that is downloadable, with possibly the following properties: Simple formatted (no time indication after moves, ...
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1answer
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What is Syzygy tablebases?

I just want to know in simple language exactly, What the Syzygy tablebases are, Why they are used, What are their advantages, disadvantages?
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4k views

Database of correspondence games?

Where can I find databases of correspondence games? I prefer freely available ones, but commercial products can also be suggested.
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360 views

The list of all authentic chess games happened so far

I am looking for a database of chess games for a research purpose. I found that chessgames.com is one such site where the data for games of strong players would be available (I don't expect it to be ...
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software to analyze my own database of games with statistics

I've been playing on lichess.org for my online games, and is the primary way I enjoy chess. One of the big reasons why I started playing on lichess.org was that they offer a simple way to export your ...
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299 views

Is there a Windows based command line tool to convert cbh to pgn?

I see that there is code for an Android app available at https://code.google.com/p/cb2pgn/, but I wonder if anyone has taken the time to make a standalone .exe that does the job?
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Where can I find a big chess database?

I am searching for a big chess games database, in PGN or CBH or SCID format. ICOfY Base is no longer available, I think. I found nothing in torrent sites (I am searching for something that is legal).
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Issues downloading the latest version of chess database on chessdb! [duplicate]

I downloaded the lastest version of chessdb but while trying to download the large database (about 3.5M games), I have got errors and the download does not start. I deactivated my firewall and my ...
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Quality of inputs in chess game databases?

[Event "FIDE Women's World Chess Championship"] [Site "Sochi RUS"] [Date "2015.03.17"] [EventDate "2015.03.17"] [Round "1.1"] [Result "1/2-1/2"] [White "Tatiana Kosintseva"] [Black "Mary Ann Gomes"] [...
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1answer
701 views

How to play against an engine using scidb?

I'v just installed the scidb chess database, and I can't figure how to play against an engine from there.Is this feature even supported ? If it is, how to use it ?
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Convert ChessBase format to PGN on Linux

I have some ChessBase-format database files, and I would like to convert them to PGN so thatlinux-compatible programs (like scid, chessdb, etc.) could read it. Since I am running on linux and not ...
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266 views

Most important aspects of computer for scanning through databases in Chessbase?

A quite technological question so this is for the tech-people out there! What are the most important parts of a computer for Chessbase Database searching? For example, opening reports and reference, ...
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Is there an online database for the endgame KRPPKRP?

It was stated at this forum that the 7-men-endgames are still not available online. What about the special endgame KRPPKRP (Rook and 2 pawns against Rook and 1 pawn) ? It would be nice if the ...
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2k views

Which online database is the best?

I search an online chess games database which should be free and it would be nice if no registration would be required. I want to be able to search for the basic criterions year and ELO. It would ...
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In an opening tree on ChessBase, how can we fix the statistics so that transpositions are not taken into account in the total number of games?

In an opening tree (also called "opening explorer" or "openings book") on ChessBase 12, here are the statistics that we get after 1. Nf3 c5 : So it seems that after 1. Nf3 c5 White will play 2. e4 93%...
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Where can I find databases of tactical problems, categorized and ranked by difficulty?

I'm toying with the idea of building a tactical training tool. For my idea to work, I need positions that are categorized by motif and difficulty. A lot of tools seem to have this, and I doubt they're ...
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In a ChessBase opening tree how can we put a column that displays the percent of time each move is played or a column that displays “Perf” minus “Av”?

Here are the columns displayed in an opening tree on ChessBase 12: I would be interested in adding two columns: A column which displays the percent of time each move is played in the position. So ...
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1answer
283 views

How can I use Scid to figure how I should divide study time for each opening line?

I have a database (Scid) that is mostly made up of games downloaded from TWIC. I know my rating (low 2000s). As an example, I want to play the Classical Sicilian as black. It can be reached either as ...
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Is it legal to use a chess database in correspondence chess?

Someone told me that you can use a chess database for correspondence chess, but this seems a little like cheating. Does anyone has some information on this subject.
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Additional openings that are Chess Position Trainer compatible

I just started playing with Chess Position Trainer and I really enjoy the experience of playing through the "Closed Sicilian” repetoir that comes pre-loaded. The manual mentions that you can build ...
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1answer
3k views

How to create your own opening book for your own chess engine?

I am currently working on a chess engine in Java. I am using the minimax algorithm with alpha-beta pruning to select the best move. However, it is inefficient to use the algorithm for selecting ...
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6answers
7k views

How to save games in ChessBase reader?

I played a very interesting game today, and I entered it in ChessBase reader, along with some comments. I would love to save this game in a database (.cbh) or as a .pgn, but I don't know how. Can you ...
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In ChessBase 12, when viewing an Opening Tree, why do all the games always stop near move 26?

I have ChessBase 12 64Bit. To create an Opening Tree I do the following steps: I click on "Mega Database 2014". I filter all the 5.8 millions games like I want (for example, taking only the games ...
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Is the Grand Prix Attack a poor response to the Sicilian?

The Grand Prix Attack begins 1. e4 c5 2. Nc3 Nc6 3. f4. It is an anti-Sicilian for white that is popular among club players because playing it requires memorizing significantly less theory than the ...
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1k gamesanalysis (PGN)

I've been playing chess on-line for about 7 years now. I've downloaded my past games since 2011, its about 1k chess games. The download is in PGN format. Now I want to do an analyses on the data. Is ...
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Making sense of Scid vs. PC tree score statistics

I can't seem to figure out how to interpret the score statistics when browsing a chess database with Scid vs. PC. To give an example, the following is a position from the ICOfY chess database tree ...
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1k views

how to keep an offline database of my own games

What would be the most standard way to keep an offline database of my online and over the board games? Would just keeping PGN files (with arbitrary filenames) in a directory work? Would database ...