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Nalimov Chess Endgame Tablebases
Complete set of Nalimov endgame tablebases for chess, providing distance-to-mate (DTM) information for all legal positions with a given material configuration.
Contents
| Directory | Description | Files | Size |
|---|---|---|---|
3-4-5/ |
3, 4, and 5 pieces | 290 | ~7 GB |
42/ |
6 pieces, 4+2 without pawns | 164 | ~111 GB |
33/ |
6 pieces, 3+3 without pawns | 130 | ~96 GB |
42p/ |
6 pieces, 4+2 with pawns | 1234 | ~513 GB |
33p/ |
6 pieces, 3+3 with pawns | 984 | ~430 GB |
Total: 2802 files, ~1.15 TB
File format
All files use the .emd format (Nalimov endgame database). Each file covers a specific material combination (e.g., kbbkn.nbb.emd = King+Bishop+Bishop vs King+Knight).
These tablebases are compatible with chess engines that support the Nalimov format, such as older versions of Stockfish, Crafty, Shredder, and many others.
Usage with chess engines
Point your chess engine's Nalimov tablebase path to the downloaded directory. For example, in a UCI-compatible engine:
setoption name NalimovPath value /path/to/nalimov/3-4-5:/path/to/nalimov/42:/path/to/nalimov/33:/path/to/nalimov/42p:/path/to/nalimov/33p
Original sources
These files were originally hosted on:
- tablebase.sesse.net (Steinar H. Gunderson)
- chess.cygnitec.com
This mirror exists to ensure long-term availability of these tablebases.
License
These tablebases are mathematical data (exhaustive solutions to chess endgames) and are not subject to copyright. Released under CC0 1.0.
Author
Tablebases computed by Eugene Nalimov. Dataset uploaded by jromanghf.
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