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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What are the commonest checkmating moves in the Lichess (or similar) database?

I'm curious what checkmating move is the most common in the Lichess database? That is, the properly algebraically specified move, for a given color, like "White plays Re8#". Answers for ...
Steve Bennett's user avatar
2 votes
1 answer
72 views

What's the maximum number of pieces attacking a single square?

I'm thinking about developing an optimized chess database file format. I can record a single move in 12 bits: two squares, each one with two coordinates, where each one is a number from 1 to 8. ...
Danya02's user avatar
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1 vote
0 answers
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Training data retrieval

I am currently developing a chess engine which uses minimax algorithm to evaluate chess positions. In addition to this I want to improve my current static evaluation with reinforcement learning. I ...
Martin Šváb's user avatar
5 votes
2 answers
2k views

What is the shortest game that has never been played?

In the publicly available databases (at all levels of play, including Lichess), what is the shortest unique sequence of moves from the opening which has never occurred? (That is, if it were played, it ...
Steve Bennett's user avatar
0 votes
0 answers
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What is this wide split in the Kmoch nimzo between stockfish's evaluation and master-level move choice?

In the Kmoch Nimzo Indian (sometimes called the f3 nimzo) [FEN ""] 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3 6. bxc3 c5 (6... dxc4!? 7. e4) The move 6...c5 is the most popular ...
Awalrod's user avatar
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1 vote
1 answer
49 views

Resources To Learn How To Use Chessbase

Chessbase comes up practically everywhere as key software to use for chess improvement, accessing and playing through games, researching etc. As an adult improver (1900 Chess.com), beginner chess ...
chesshomem's user avatar
3 votes
0 answers
196 views

The Most Frequent Checkmate Patterns

Of the main checkmate patterns which are the most frequent (in games that ended with a checkmate)? Based on chess literature the Back-rank mate is arguably the most common, I would expect the Queen ...
chesshomem's user avatar
3 votes
1 answer
136 views

How to access high level tournament game data

I am currently in need of data from high level tournaments for a project and the data needs to include information like each individual move, the engine evaluation after each move, and the time ...
Han's user avatar
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0 answers
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PGN viewer for large databases?

What are some of the PGN viewers available for viewing/saving/editing a large number of chess games (more than 5k games)? I am aware of chessbase. What are the other available options?
Arun J's user avatar
  • 1,857
2 votes
1 answer
329 views

Where can I find past Titled Tuesday data

I'm hoping to create a dataset with Chess.com Titled Tuesday results. I have found this link which has the tournaments https://www.chess.com/tournament/live/titled-tuesdays?&page=7 but for some ...
cmgchess's user avatar
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3 votes
1 answer
579 views

Differences between normal chessbase and chessbase Steam

I just recently realised that the chessbase software is available on Steam, which would seem normal to me if it wasn't almost half the price compared to the version on the official website. I have ...
Lixue Zhao's user avatar
0 votes
0 answers
56 views

Chess Match Neustadtl-Porges 1901 Prague

Where can I get the full list of moves in the match between Hermann Neustadtl and Moritz Porges played in Prague in 1901? I want the moves from the whole match, not just the famous endgame analysis.
GFB's user avatar
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3 votes
1 answer
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How wide or how narrow should be the repertoire of a 1800 Elo player who still wants to continue to improve?

Should he have one defense against 1.e4 and one defense against 1.d4, or two defenses against 1.e4 and two defenses against 1.d4? Should he always play the exact same sub-variation of the exact same ...
Fate's user avatar
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-1 votes
1 answer
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What positions are there where the final actual outcome in real games contradict engine evalulation?

This question triggered by a position reached today round 9 in WCC 2023. According to lichess Masters DB that position was reached 17 times in which black won 3 times and the rest are drawn which is ...
user34633's user avatar
17 votes
3 answers
12k views

Where did ChatGPT get this game from?

Seeing Ding Liren playing the French, I asked ChatGPT for an example of a game he played with this opening: Can you give me an example of Ding Liren playing the French defence? ChatGPT replied: ...
Rebecca J. Stones's user avatar
4 votes
1 answer
84 views

Is there a free opening data base that gives information about "this is the old main line, this is the modern mainline, etc."?

I am looking for a free online opening database that gives information not only on the number of games played, but also some history behind them. For example, some information such as "this move ...
Zuriel's user avatar
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4 votes
2 answers
375 views

Can I use Lichess to store my over-the-board games?

I recently got back into playing long games over the board, and I'd like to have some kind of database of my played games. This database would need to include searchable metadata including game date ...
Anna's user avatar
  • 204
4 votes
3 answers
256 views

How to search for chess players by favourite opening

Is there a convenient way to search for players by their opening? For example if I input 'Ruy Lopez' then it gives me a list of chess players, sorted by how many times they played Ruy Lopez in ...
Brian Cheung's user avatar
0 votes
1 answer
154 views

Tool for storing multiple engines analysis of chess positions databse

I am looking for a tool that can store engine analysis of a chess positions database. It should be able to store multiple lines of analysis with complete info like depth, tablebase hits, score, etc.; ...
Wassim Saeed's user avatar
0 votes
1 answer
253 views

Is there a spreadsheet of all 5 or fewer men endgame tablebase continuations/results? How could one be made?

I am looking for a spreadsheet such as the one here: https://data.world/uci/chess-king-rook-vs-king, except that it covers all 5 or less men endgames. Ideally it would also have PGNs of the ideal ...
user32700's user avatar
2 votes
0 answers
60 views

Endgame move frequency data?

If you want to know what moves humans play in a certain positions, any database with enough games in it can give you the answer. This obviously only works for opening positions, as the chance of any ...
SE - stop firing the good guys's user avatar
5 votes
3 answers
1k views

Is testing an opening by having a computer play against itself viable?

Recently, I got into a brief argument with a colleague when I mentioned that I wanted to use an engine playing against itself to generate a larger sample size for a rare sideline. His argument was ...
DdogBoss's user avatar
  • 193
0 votes
1 answer
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Game databases with spent time listed?

I refereed a match where White had a rather large time advantage in the middlegame - on all boards. This isn't that remarkable, I expect that Black must invest more time just to equalize, and often ...
Hauke Reddmann's user avatar
6 votes
1 answer
352 views

Is it possible to connect to the Lichess database remotely from ChessBase?

Lichess has a database of over 200 million blitz, rapid and classical games played on the website, that can be accessed via the opening explorer. That is extremely useful for those interested in ...
Detached Laconian's user avatar
3 votes
1 answer
1k views

Dataset: Chess Positions and evaluation value

Is there anybody out there who knows about a very good dataset of chess positions (e.g. FEN notation or 64 fields with pieces in it) combined with a Stockfish-like evaluation score? I did find ...
Hemmelig's user avatar
  • 133
7 votes
1 answer
285 views

Filter PGN for games for one sided openings

I want to filter a PGN database for games where one side plays a series of moves but I don't care what the other side does during that sequence. For example the bongcloud is where one side plays 1. e3 ...
SimonUnderwood's user avatar
5 votes
1 answer
753 views

Generalise 'grandmaster games (...) castle opposite sides and the queenside players loses?' to finding games based on themes

I would like to generalise What are examples of grandmaster games where both Black and White castle opposite sides and the queenside players loses? Question: Is there a way I can search this up myself?...
BCLC's user avatar
  • 1,966
2 votes
1 answer
86 views

Linking online accounts with OTB real names in database

I have just started to get back into chess from a long time away. I have joined my local club and started to compete. I have been playing around with SCID vs PC and wonder if you can link your ...
Razor's user avatar
  • 69
1 vote
1 answer
73 views

pgnscid error message

I have been downloading zip files from "The Week In Chess"'s site and converting them to a scid database. I get quite a few Error reading move in game...: O-O errors. It appears that ...
Garnet's user avatar
  • 339
-6 votes
3 answers
469 views

How do I find data to determine records like the youngest person to obtain a certain title?

A. Background: Under Mobeus Zoom's suggestion here: List of records for youngest superGMs since 1950? (or 1970 or whenever FIDE started rating people. or basically after 2700s after Fischer) (this is ...
BCLC's user avatar
  • 1,966
4 votes
1 answer
514 views

FIDE database used for calculating current ELO

Is there somewhere the database FIDE use for calculating ELO rating of players? No need for PGN of games just game result, date, and players. Reason: recalculate players rating by using Gliko, with ...
Felice Pollano's user avatar
5 votes
2 answers
5k views

Quick method for generating FEN strings from PGN using Python Chess

Is there a fast way to generate FEN strings for every move in a PGN? I'm generating an opening book using the Lichess elite database and Python Chess, but Python Chess is taking a surprisingly long ...
MattY's user avatar
  • 153
1 vote
1 answer
237 views

How do I to convert tarrasch-base.tdb into pgn for scid?

I have a tarrasch database in a tdb file that I would like to run into my scid-vs-pc gui. But after spending a lot of time looking for some information on Google, I found nothing that can help me. How ...
Alias's user avatar
  • 7
1 vote
4 answers
1k views

How do convert/parse/extract data from a PGN into a spreadsheet/google sheet/excel file?

Sequel to this question: Live statistics chess960 from chess.com? So suppose I go to like https://api.chess.com/pub/player/gmwso/games/2020/12 or https://api.chess.com/pub/player/gmwso/games/2020/12/...
BCLC's user avatar
  • 1,966
3 votes
1 answer
255 views

Live statistics chess960 from chess.com?

Cross-posted stackoverflow, but nothing. Both lichess and chess.com have the feature to play the variant chess960 live. However, only lichess has a graph showing how your live chess960 rating has ...
BCLC's user avatar
  • 1,966
4 votes
2 answers
1k views

Find an opening based on the position of one player only

Given a position for just one player, how can I check to see if there is a standard opening that leads to that position? For example, how could I find if there is an opening that leads (or may lead, ...
badroit's user avatar
  • 271
4 votes
2 answers
409 views

Abbreviations like 't', 'm', 'zt', 'sf' in chess databases

I am just cleaning up the Event and Site headers in the games in my chess database. There are a lot of abbreviations there. I am relatively sure about the following: of, qf, sf and f – octo final, ...
Nils Lindemann's user avatar
6 votes
1 answer
422 views

Winning percentage (white win/draw/black win) in chess960/9LX in 2021?

How does the winning percentage (white win/draw/black win) in chess 960 (Fischer random) compare to that of regular chess? The above was asked here: Winning percentage in chess 960. I would like to ...
BCLC's user avatar
  • 1,966
1 vote
1 answer
77 views

Create a list of discs from PGN file with a lot of comments [closed]

I need help to generate structured data from the PGN file as discs into a list in Python, or similar. For example, say that I need to read this PGN file. ###############################################...
Hick Nax's user avatar
1 vote
1 answer
162 views

A way to add an "opening names" column to the SCID game list

I've been googling and looking through SCID's options but just can't seem to find the answer. The database gamelist in SCID has a few informative columns for all the games in the gamelist, including ...
user3330623's user avatar
2 votes
2 answers
322 views

Is there a data file available (e.g. a .csv) containing every single rated game?

Question Is there a data file somewhere containing every single (FIDE) rated game? What I found out so far I see many websites with some limited database search capability, or summary statistics, but ...
stevec's user avatar
  • 2,087
3 votes
2 answers
234 views

What are some of the chess databases in the public domain that can be used for commercial purpose?

What chess databases allow commercial use without having to reveal source code as part of their license? I see a few chess databases online, even the huge databases on lichess. I wonder which of these ...
Arun J's user avatar
  • 1,857
4 votes
1 answer
346 views

What are the percentage rates for each promotion type?

I could not find the database which has this, but I would like to know what percentage of promoted pawns ends up being a queen, rook, bishop, or knight
timosenko1's user avatar
4 votes
1 answer
81 views

Are there any resources where one can view the popularity of a move by year?

I am currently under the impression that White players are allowing the Nimzo-Indian more and more, whereas before they were dodging it via 3. Nf3. I wanted to check if that is true, but usually ...
B.Swan's user avatar
  • 3,488
1 vote
1 answer
170 views

Listing engine evaluation of each game after opening to track my opening skill level

I've recently picked up the book "Pump up your rating" where the author talks about tracking each of your games with a post-mortem analysis. The report of all your games combined will show ...
BlueDiamondHead's user avatar
2 votes
1 answer
374 views

Issue with ChessBase results when filtering by "Good Games"

I'm trying to determine if I'm doing something wrong or if there might be a bug in the program. One thing I was experimenting with was the search mask called "Good Games". The documentation ...
jsr's user avatar
  • 23
-1 votes
1 answer
102 views

Need help finding a tactics database with motifs [duplicate]

I am trying to make a neural network which could determine what chess tactic is present in a position. For this, I need to have a database of chess tactics labelled with correct motifs. A similar ...
The Demonix _ Hermit's user avatar
7 votes
3 answers
2k views

Free opening name database?

Is there a database available that the gives you the names of common openings? "Ruy Lopez", "Sicialian", "Queens Gambit", etc. Ideally it would just be a simple map of the opening PGN to the common ...
honkskillet's user avatar
1 vote
2 answers
474 views

Whats the difference between these chess tempo databases

Chesstempo seems to have two pages for database display. This one works at random: https://chesstempo.com/game-database.html Sometimes it shows the moves in sequence of most usage and then the ...
edwina oliver's user avatar
2 votes
1 answer
88 views

What is the 'combustion point' of a game? This was in an upvoted answer

Saw an answer and it had been upvoted. Person answering had a large rep on stack. The term used that was not explained is: 'Combustion Point' (of a game) My question is just what does 'combustion ...
edwina oliver's user avatar