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11 years after the last update, I thought I should clarify that the project is over and this page is no longer maintained.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:

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:
Coc2 Save Editing  – Super-shared tablebase – All files have 10 full sources (peers with complete files).
Coc2 Save Editing  – Well-shared tablebase – At least 3 full sources exist.
Coc2 Save Editing  – At least one full source exist - a recently shared base, not spread yet.
Coc2 Save Editing  – 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!
Coc2 Save Editing  – 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 (Coc2 Save Editing and Coc2 Save Editing).
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 ]





Coc2 Save Editing Info

If you're using local saves (the default save method), the files are stored in a specific location on your computer. For Windows users, the path is:

Are you playing on a , Steam , or a standalone download ? What specific stats or items are you trying to alter?

: For those playing older versions or specific Flash-based builds, tools like can edit local shared objects. 📝 Step-by-Step: How to Edit Your Save Export Your Save game menu, navigate to the save/load screen. Under the section on the right, click to download a file to your computer. Load into the Editor : Open your chosen save editor and click the button to import your Make Your Changes : You can now navigate through tabs to adjust: Attributes : Strength, Toughness, Intellect, etc. Appearance : Body parts, skin type, and racial scores. : Add or remove weapons and items. Save and Re-import : Once finished, click in the editor to download the modified file. Go back to "Load from File" option, and select your new file. Steam Community ⚠️ Pro-Tips and Warnings Always Backup First

CoC2 includes a system that detects modified saves. "It's not there so much for your benefit, to be honest. It's more for ours, so we can tell when a save has been messed with and we can chuck it out the window". This warning appears when loading an edited save file. While it's primarily for debugging purposes, it serves as an important reminder that you're operating outside supported gameplay. Coc2 Save Editing

This usually means a typo occurred in the JSON structure (like a missing comma or quotation mark). Re-edit the file or revert to your backup.

"Easy," the gremlin grinned, pulling out a strange, glowing scroll labeled *.coc2 . "All you have to do is Save to File in your Data menu. Bring that scroll to me, and we can rewrite your very soul."

C:\Users\[YourUsername]\AppData\LocalLow\Phenix\CoC2\ or within the game folder's savedGames directory. Mac: ~/Library/Application Support/Phenix/CoC2/ 2. The Safest Method: Web-Based Save Editors If you're using local saves (the default save

He blinked. He didn’t remember typing those. His hands were on the mouse, but they felt distant, like someone else’s hands. A new text box appeared at the bottom of the editor, gray and unassuming.

Paste this text into your chosen save editor or Base64 decoder.

"Wait," Jax warned, remembering a rumor from the Steam Community. "If I increase my stats without increasing my level, I’ll softlock the game when I try to rest! I'll have negative points to allocate and be stuck forever". : For those playing older versions or specific

One player described their process: "Find where it lists your gold, food, talent/skill/magic points, etc, and just adjust those numbers. I tend to start a new game, get like, 1 level, and then just not spend my points. Then when I start editing the save it'll have those points listed in the file, and I can just edit them to be like, 10000 points or whatever".

Related searches I can suggest: CoC2 base editor, how to back up Android app data, replay viewer for CoC2.

If you want to customize your experience further, let me know:

"statusPoints" or "statPoints" : Gives you unspent points to distribute into Strength, Toughness, Intellect, and Libido. Modifying Status Effects and Corruption

Before altering your data, you must understand how Corruption of Champions II handles save files.


© 2005-2013 Kirill Kryukov
This page is available under the CC BY 3.0 License