World Championship winning computer chess software program & downloads for chess database, analysis and play on PC, Mac and iPhone

Macintosh Sigma Chess HIARCS Downloads

Sigma Chess HIARCS 12 for Apple Macintosh computers is available now. Please see our Mac HIARCS chess pages to see the key features of our Mac product offerings. 

The ReadMe.txt in each download contains details of each update and other useful information.

Click on the appropriate Download link to begin downloading. All file sizes are approximate.

Contents

Sigma Chess 6.1.6 HIARCS 12.1 for Macintosh OS X

Contains the Sigma Chess 6.1.6 GUI and HIARCS 12 single and multiprocessor UCI chess engines for Apple Macintosh computers. Also included is a full tournament openings book and various Sigma chess libraries and databases. Until purchase and activation Sigma Chess HIARCS will operate in as a Lite product with restricted features and strength.

Download Sigma Chess 6.1.6 HIARCS 12.dmg  (10 Mb)

IMPORTANT: Do NOT run the software directly from the Sigma 6.1.6 HIARCS 12 Installer volume. Instead copy the enclosed Sigma 6.1.6 HIARCS 12 folder from the volume to a suitable location on your hard drive (e.g. the Applications folder). Then eject the volume. Please see the Macintosh chess FAQ for answers to most common questions about installation, activation and use of the product.

Please read the How to Install document inside the image volume as it contains important information about installation and how to use your older HIARCS chess engines from v9.6-v11 with Sigma Chess 6.1.6.

Requires Apple Macintosh computer running Mac OS X 10.3 or later. Not compatible with Mac OS 9 or earlier; or MS Windows.
Please read and agree to the HIARCS License.txt license agreement before using the software.
Last updated: 15th June 2008. 

"generally I use HIARCS." - Five time World Chess Champion Vishy Anand, in a recent interview when asked what chess program he uses to analyse with
 
"HIARCS is much better positionally than Deep Blue." - Garry Kasparov 1997 (after game 5 of the rematch)

World Chess Champion, Vishy Anand, used "Powerful" HIARCS machine in preparations for his 2010 & 2012 world title matches

"This level of service is one other big reason to buy HIARCS." - John Jackson

† Highest performance reached depends on computer used.   *VAT may be applicable for customers resident in the European Union.
Prices are given in Pounds Sterling, US dollars and Euros. Prices are subject to change without notice.
Purchases in other currencies will be subject to conversion rates from Pounds Sterling (GBP).

World class Palm, PC Chess, Mac Chess, Pocket PC and iPad, iPhone Computer Chess Software with innovative features and chess playing strength
HIARCS Computer Chess Engines are designed and developed by Mark Uniacke in England.
HIARCS is a trademark of Applied Computer Concepts Ltd. All other product trademarks acknowledged.
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