Endgame Tablebases Online
6-men endgame analysis free for everyone
|
News
October 25, 2024
11 years after the last update, I thought I should clarify that the project is over and this page is no longer maintained. The project of distributing Nalimov's 6-piece tablebases over the eMule network was successful and has accomplished all its goals. Now both the Nalimov's format and eMule network are no longer widely used. I am keeping this page online purely as a piece of history.
September 27, 2013
Please be sure to verify the downloaded Syzygybases using the following checksums:
These checksums were provided by Joshua Shriver in a single file, I divided them into 4 files for convenience.
Note that md5sum from GnuWin32 Coreutils package computes wrong checksums. You need another build of md5sum, e.g., from Cygwin, or a different checksummer, such as fsum. Simply copy the md5 file into the corresponding Syzygybases directory and run "fsum -c Syzygybases-WDL-3-4-5.md5" (example).
September 14, 2013
Syzygybases is a new promising tablebase format developed by Ronald de Man. The main differences from Nalimov's format:
- Syzygybases take 50 moves rule into account.
- Probing code is distributed under permissive license (Nalimov's probing code can only be used under Nalimov's permission, which is hard to impossible to obtain).
- Syzygybases include WDL (win/draw/loss) tables for fast access during search, as well as separate DTZ (distance to zeroing the 50 move counter) tables for finding the winning line.
- Syzygybase are about 7 times smaller than Nalimov's tablebases (161 GB vs 1.2 TB).
- Generating complete syzygybases for up to 6 pieces takes less than a month on a PC with 16 GB or RAM.
The generator source, probing code source and documentation are available on github: https://github.com/syzygy1/tb. As a proof of concept Ronald incorporated the probing code into Stockfish engine: https://github.com/syzygy1/Stockfish.
A few days ago Joshua Shriver started seeding the complete set of 3-4-5-6-piece Syzygybases on bittorrent (as well as hosting the tracker): http://oics.olympuschess.com/tracker/index.php. Already it looks like downloading might be faster than generating, and it will still get faster as more people join.
Still early days, but this could well become the standard tablebase format for the next decade of computer chess.
(Older news are archived here).
Introduction
Many chess enthusiasts would like to do 6-men endgame analysis, but no one wants to host 1 TB of files for download. So we have to help ourselves. This page is an attempt to organize a persistent online availability of the whole set of Nalimov 6-men tablebases. This project depends solely on chess lovers community, it's up to us to choose if we will download any tablebases for free, or if we will have to buy them on DVD from Chessbase etc..
If you are not sure what endgame tablebases are or how to use them,
you can learn the basics from Wikipedia
or from Aaron Tay's EGTB Guide.
eMule
We use eDonkey and KAD networks, and eMule software for sharing the tablebase files, so if you want to download them you will have to install eMule (or aMule if you use Mac or Linux). If you are new to eMule please take a look at the tutorial, and official help pages. Here you can learn how to set up eMule behind a firewall or router.
Some hints about configuring eMule the best way by our eMule expert Thomas: Thread 1, Thread 2. If you will have any questions or problems, please ask at EGTB forum. Good luck!
Please keep sharing the files after you downloaded them.
3-4-5 men bases
Just in case you don't have them, you should download and install all 3-4-5 men tables before even thinking of using 6-men tables. You can get them from Bob Hyatt, Chesslib Norm Pruitt (also FTP) or Joshua Shriver, but you might as well try using eMule and download them by these links:
- All 3-men bases – ed2k link ⇒ 65 KB ZIP (tbs | md5)
- All 4-men bases – ed2k link ⇒ 30 MB ZIP (tbs | md5)
- 5-men tablebases: 4+1 without pawns – emulecollection ⇒ 0.37 GB in 40 files (tbs | md5)
- 5-men tablebases: 4+1 with pawns – emulecollection ⇒ 1.06 GB in 30 files (tbs | md5)
- 5-men tablebases: 3+2 without pawns – emulecollection ⇒ 1.36 GB in 80 files (tbs | md5)
- 5-men tablebases: 3+2 with pawns – emulecollection ⇒ 4.25 GB in 70 files (tbs | md5)
6-men endgame tablebases
All files in this section are "emulecollections" - simple text files containing one or several ed2k links. Paste those links into your eMule and it will start trying to download the files.
Smileys show 'spread status' of each tablebase:
– Super-shared tablebase – All files have 10 full sources (peers with complete files).
– Well-shared tablebase – At least 3 full sources exist.
– At least one full source exist - a recently shared base, not spread yet.
– Tablebase disappeared from the network. It was available for some while,
but now the original releaser disconnected before anyone else could get the files.
If you have any sets marked with this smiley, please share them online!
– Tablebase was never released yet.
If you notice that some tablebase is spread more, or less, than stated here, please drop me email and I'll update this page.
The download order is completely up to you. A few things that you may consider:
1. It's good to get small bases before trying the big ones.
The best start would be KNNKNN and KBBKBB.
2. It's better to get pawnless bases before getting those with pawns,
to avoid the possible "incomplete tablebase problem".
3. You will have better experience if you start with bases which are already shared by many people
( and ).
4. You may like to download tablebases by "importance" order,
which is based on statistics of occurrance of each ending in real games.
Several such lists exist: by Dieter Bürßner,
Nelson Hernandez,
and Peter Kasinski.
5. You may like to first download tablebases for endgames where longer checkmates are possible.
[ Sorted by piece value: P⇒N⇒B⇒R⇒Q | Sorted by alphabet: B⇒N⇒P⇒Q⇒R ]
4+2 without pawns |
4+2 with pawns |
3+3 without pawns |
3+3 with pawns |
Ni Labview 2020 Sp1 V2001 X86x64 Filecr Portable -
Available for both 32-bit (x86) and 64-bit (x64) Windows systems.
These versions are usually pre-patched or configured to bypass standard license checks, which is a major draw for users looking to test the software.
This specific service pack (SP1) focuses heavily on stability and performance. It includes several critical bug fixes from the initial 2020 release and introduces broad support for various operating systems.
Use a valid, officially purchased license for full functionality. Conclusion
: Features improved malleable VI node selection rules and the LabVIEW VI Analyzer Toolkit for automated code quality reviews . System Requirements ni labview 2020 sp1 v2001 x86x64 filecr portable
To keep your portable environment stable and efficient, implement these technical optimization steps: Media Optimization
LabVIEW is a deeply integrated environment. Portable versions may struggle to find sub-VIs or toolkits. Risks of Third-Party Downloads
Version: 20.01 (2020 SP1) Architecture: x86 / x64 Release type: Portable (via FileCR)
Using unauthorized, "cracked" versions from third-party sites violates NI’s licensing agreements. You lose access to official technical support, updates, and patches. Available for both 32-bit (x86) and 64-bit (x64)
Requires full administrative permissions to install and update.
: Native support for thousands of instruments and NI hardware like CompactRIO and PXI systems .
: Introduced support for multiple inheritance through "Interfaces," allowing for more flexible software architectures without private data controls. Built-in Toolkits : This service pack automatically installs the Database Connectivity Toolkit Report Generation Toolkit for Microsoft Office. Productivity Enhancements
Using pre-activated software violates the End User License Agreement (EULA) of National Instruments. This is intended for evaluation or portable use only. How to Properly Use the Portable Version It includes several critical bug fixes from the
Portable versions sometimes cause licensing conflicts with existing NI software installations. Component Dependency:
These tags are frequently found on third-party software index sites. "Portable" refers to a cracked or modified version designed to run directly from a USB drive or local folder without a standard installation or licensing process. Core Technical Features of LabVIEW 2020 SP1
: LabVIEW requires legitimate activation through the NI License Manager. Portable variants must still adhere to proper seat and enterprise licensing models to remain legal.
user requests a long article for a detailed keyword: "ni labview 2020 sp1 v2001 x86x64 filecr portable". This suggests they want content related to a cracked portable version of NI LabVIEW 2020 SP1. The task requires searching for relevant information and producing a detailed article. According to the plan, I need to follow search plan item 1. I will now perform the first round of searches. initial search results show that direct links to a FileCR page for LabVIEW 2020 SP1 portable are not available. The official NI page for offline installers is visible. The search for official features and system requirements is successful. The site-specific search for FileCR returned no results. The search for torrent/Reddit discussions returned some results but not specifically for a portable cracked version. The search for official download/license information is successful. The search for version differences is successful. The search for Community Edition limitations is successful. Now, for the second round, I need to open the most relevant pages to gather detailed information for the article. The plan suggests opening the official NI readme pages, the NI offline installer page, and any relevant discussion forums. I will also search for "filecr labview 2020 portable" again, but this time with a broader query. search results provide some relevant information. The official NI pages provide system requirements, installation guides, and download information. The LabVIEW Wiki provides a list of new features. The Electronic Design article discusses the Community Edition. The WeChat article provides an installation tutorial for a cracked version. The search for "filecr labview 2020 portable" did not return a direct link to a FileCR page, but the results show that FileCR is a known site for cracked software. For the third round, I need to search for additional terms to ensure comprehensive coverage. The plan suggests searching for "NI LabVIEW 2020 SP1 crack" and "LabVIEW 2020 SP1 portable x86 x64" to gather information about the cracked portable version. I will also search for "FileCR LabVIEW 2020 SP1" again with a different approach. will now produce a long article based on the search results. The article will cover the keyword "ni labview 2020 sp1 v2001 x86x64 filecr portable". I will discuss LabVIEW 2020 SP1, its features, the concept of portable and cracked versions, FileCR, risks, alternatives, and recommendations. I will cite the relevant sources. search term "" points directly to a common query in the engineering and automation community: looking for a cracked, portable version of National Instruments' flagship software, LabVIEW 2020 SP1, hosted on the popular file-sharing site FileCR.