Naum is a computer chess

Computer chess

Computer chess is computer architecture encompassing hardware and software capable of playing chess autonomously without human guidance. Computer chess acts as solo entertainment , as aids to chess analysis, for computer chess competitions, and as research to provide insights into human...

 engine by Aleksandar Naumov (Canada). The current version 4.2 was released in March 2010. The commercial distribution is "engine only" on the website of the programmer. The program supports both UCI

Universal Chess Interface

The Universal Chess Interface is an open communication protocol that enables a chess program's engine to communicate with its user interface....

 and Winboard and can therefore be operated under different graphical interfaces. There are versions for single-and multiple-processor systems running Microsoft Windows

Microsoft Windows

Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal...

, Linux

Linux

Linux is a Unix-like computer operating system assembled under the model of free and open source software development and distribution. The defining component of any Linux system is the Linux kernel, an operating system kernel first released October 5, 1991 by Linus Torvalds...

, or Pocket PC

Pocket PC

A Pocket PC is also known by Microsoft as a 'Windows Mobile Classic device'. It is a hardware specification for a handheld-sized computer, personal digital assistant , that runs the Microsoft 'Windows Mobile Classic' operating system...

. Endgame databases are supported with up to five pieces.

At the beginning of 2009, Naum attained second place behind Rybka

Rybka

Rybka is a computer chess engine designed by International Master Vasik Rajlich. , Rybka is one of the top-rated engines on chess engine rating lists and has won many computer chess tournaments...

 on chess engine rating lists, such as the CCRL. Naum tied for first with Rybka in the 2008 Internet Computer Chess Tournament

Internet Computer Chess Tournament

The Internet Computer Chess Tournament has been held annually since 2000 on the Internet Chess Club. Unlike other computer chess competitions, there are no travel requirements so there is usually broad participation...

 , but has not yet competed in other public tournaments.

There is a freeware version 2.0 of September 2006 with, however, only single-processor or single core support, as well as a version 1.8 for Palm OS

Palm OS

Palm OS is a mobile operating system initially developed by Palm, Inc., for personal digital assistants in 1996. Palm OS is designed for ease of use with a touchscreen-based graphical user interface. It is provided with a suite of basic applications for personal information management...

from June 2006.