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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35
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5answers
45k views

What is the average length of a game of chess?

I hope this is an appropriate question for this site as I've been wanting a reputable answer. Of course the length of games can vary wildly, but what is the expected number of moves until either a ...
4
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1answer
137 views

Is there a database of endgame positions with known perfect play?

Perfect play as in, it leads to checkmate in the least moves possible. Not just forced mates.
7
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1answer
222 views

Database without rapid and blitz games

Last years Mega Database is full of rapid and blitz games taken from live broadcast boards. Is it possible to filter them out? Are there other bases that have games only from long time controls? ...
9
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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 ...
2
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1answer
77 views

How can I find all games between 2 specific players?

How can I find all games played by 2 specific players? For example: Nigel Short and Magnus Carlsen. Is there some official FIDE database or something like that? I'd like an easy way to see things ...
11
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2answers
889 views

How can I get a collection of chess games with a 'Greek gift' sacrifice?

I would like to make a collection of chess games that feature the 'Greek gift' sacrifice. There are few games on chessgames.com annotated with this sacrifice. I could find blogs with individual ...
3
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1answer
178 views

Data set of board representations at checkmate?

I would like to do a simple project by looking at the pieces at play when checkmate occurs. I have been scouring the internet for a dataset of standard chess games from which I can retrieve the ...
3
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2answers
203 views

Online or Print Sources for Historical Games

What are the best online or print sources for historical games? I am generally looking for pre-1930s games NOT by world champions, and, in particular, looking for games by some of the prominent women ...
9
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3answers
996 views

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 ...
2
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2answers
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 ...
5
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1answer
3k views

Why is it so hard to find a free downloadable chess database with older/historical chess games?

The best free, downloadable chess database I've found is Kingbase (http://www.kingbase-chess.net). It only has games since 1990. I also have the Android Chessbase Online app, which also appears to ...
5
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2answers
876 views

Recommended software for ICCF play?

I am interested in playing correspondence chess online through the ICCF. It is my understanding that using computers is not only allowed, but almost mandatory. My question is: What all kinds of ...
1
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1answer
144 views

Cleaning a database

I noticed that in the freely available TWIC databases (and perhaps in other databases as well) there are sometimes different notations for the same move. Just now I am looking at the Ruy Lopez where ...
4
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2answers
1k views

Game databases vs. various languages/character sets

How do people use chess software in large countries like China, India or Russia, if they don't speak English, and more importantly, if they don't know Latin letters? With unicode there's not big ...
1
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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 ...
-2
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3answers
231 views

What if we downloaded a gigantic database of chess games into our brains (intelligence downloads)?

If we downloaded a gigantic database of chess games into our brains (intelligence downloads), then would we play at a stronger level than the world's leading top players? What about if we downloaded ...
3
votes
1answer
84 views

Where can I find lists of best games per tournament?

I would like to obtain a list of best games per tournament (World Chess Championships, Chess World Cup, ...). By "best" I mean games that either have won a brilliancy prize, or games that are ...
8
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4answers
1k views

What is a chess database used for?

I frequently see advice about how to learn chess that include links to databases, or how to set them up, or a question here about Analysis where the accepted answer says to just add some stuff to your ...
10
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3answers
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 ...
8
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2answers
726 views

Is the advance Caro-Kann becoming less popular?

In my own games I have seen fewer advance Caro-Kann games (1. e4 c6 2. d4 d5 3. e5) than the semi-open games (3. Nc3 or 3. Nd2) or the Botvinnik systems (3. exd5 cxd5 4. c4 or 2. c4). My questions ...
2
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2answers
172 views

Analysing Positions in Databases with a program

I've got two questions. I'm wondering if: It is possible to search for certain positions in a database (like Chessbase) and display all of them in a text file. To be able to assign a score to each ...
4
votes
1answer
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?
3
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1answer
577 views

Personal chess database

I'm looking for non commercial program where I can import PGNs. And to visualize the games I want simple GUI and analysis-table like you will find here. Additionally it would be nice if the program ...
1
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2answers
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 ...
2
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1answer
147 views

Chess games ownership, databases to use in app to sell

There is plenty of sites offering database searches and I wonder how to make it without breaking any laws. I'm looking for games source (pgn ideal) that I can download, process and use in my ...
4
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1answer
499 views

Generate Simple Mate In 1 From Tablebases (for kids)

I was trying to find a kid's app for chess that has some incredibly simple problems. However, all the apps I found had rather tricky problems. So I thought I would download 3 piece table bases and use ...
1
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2answers
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 ...
5
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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 ...
5
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2answers
3k views

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 ...
8
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5answers
1k views

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%...
2
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0answers
229 views

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 ...
2
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2answers
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.
3
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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 ...
5
votes
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 ...
5
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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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2answers
500 views

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 ...
1
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2answers
92 views

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 ...
3
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1answer
172 views

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?
2
votes
1answer
60 views

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 ...
1
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1answer
66 views

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 ...
1
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1answer
699 views

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!
3
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2answers
262 views

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 ...
3
votes
3answers
3k views

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 ...
4
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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 ...
1
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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 ...
1
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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/...
13
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1answer
8k views

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?
0
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1answer
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 ...
0
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1answer
57 views

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"] [...
0
votes
1answer
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, ...