HIARCS PC Mac & Palm Chess Software    How To Buy
World Class PC, Mac, Pocket PC, Palm, Mobile and iPhone Chess Software on your desktop and in the Palm of your hand!

HIARCS Home Download HIARCS How To Buy Mac Chess FAQ

horizontal rule


Sigma Chess HIARCS for Apple Macintosh

Sigma Chess HIARCS is a software download product only, it is compatible with any Apple Macintosh computer running Mac OS X 10.3 or later. It is NOT compatible with Microsoft Windows OS PCs or Mac OS 9 or earlier.

Two steps to enjoy the registered and activated capabilities of Sigma Chess HIARCS 11:

1) Download Sigma Chess HIARCS Lite and TRY IT for FREE. Sigma Chess HIARCS Lite will run for free in demo/unregistered mode (restricted features and strength) until you purchase and receive the license key to activate the software. In addition you will find free updates and opening books for registered owners on our download pages from time to time.

2) If you like it BUY IT by secure online payment choosing the SP or MP version you want. You can buy Sigma Chess HIARCS for Macintosh by a variety of secure online payment methods including credit and debit cards. You can even pay by cheque/check or wire transfer. Soon after payment is completed you will receive a personalised license key to enable the purchased product option and  get full free access to the full tournament opening books with super GM level play and analysis!  Now you have a Super GM on your Apple Macintosh!

The product options are:

  1. Sigma Chess HIARCS 11 SP for Apple Macintosh (Full single processor version)
    The HIARCS chess engine for single processor Intel and Power PC Apple Macintosh machines.
    This version will only use one processor core at a time. For maximum performance on Intel choose the MP version.
    Includes all free updates within the HIARCS 11 series when available.
    Now includes HIARCS 11.2 update.
    Licensed by personal Name and Key emailed to you shortly after purchase.

    Click here to order Sigma Chess HIARCS 11 SP (single processor edition) for Apple Macintosh
    Price*: 24.95 / 37.50 / $49.95
  2. Sigma Chess HIARCS 11 MP for Apple Macintosh (Full multiprocessor version)
    The ultimate HIARCS chess engine which can run on single, dual and quad core/processor Intel and PowerPC Apple Macintosh machines.
    The "Deep" HIARCS MP runs nearly twice as fast on Dual Core/Processor machines and over three times faster on Quad-core machines
    The Multiprocessor version is strongly recommended for Intel based Macs as they have multiple processor cores and the MP version can take full advantage of them.
    First to receive free updates within the HIARCS 11 series when available.
    Now includes HIARCS 11.2 update.
    Licensed by unique registration code and personal Name and Key emailed to you shortly after you register.
    All HIARCS 11 MP purchasers can also use the HIARCS 11 single processor version with the same license key.

    Click here to order Sigma Chess HIARCS 11 MP (multiprocessor edition) for Apple Macintosh
    Price*: 49.95 / 74.95 / $99.95


Benefits of purchasing:

Choice of HIARCS 11.2 Single or Multiprocessor engine versions


HIARCS is a Universal binary to maximise performance on both Intel and PowerPC (G3/G4/G5) based Macs


Chess strength up to 2900+ Elo depending on your hardware performance and version.


Full chess brain enabled and 10-40 times faster than Lite version


Maximum depth extended from 13 moves to 62 moves lookahead


Hiarcs 11.2 scores 98% v Hiarcs 11.2 Lite!


Unlimited levels and time controls: Casual, Blitz, Active, Fischer and Tournament.


Multiple playing styles, Solid, Normal and Aggressive; together with hypermodern play.


Configurable Smart Search, Selectivity, Threats and Combination settings.


Positional and book learning capabilities so Hiarcs improves as it plays.


Full Tournament book with the latest opening theory for study and preparation


Hash tables up to 64Mb. Larger hash tables up to 2Gb are available with the Sigma Chess Pro version.


Explore new Sigma Chess 6.1.5 GUI with new features like MultiPV

Buy now and you will be up and running with Sigma Chess HIARCS within a few hours even at the weekend. Our average response time is under 2 hours.

Once you have Sigma Chess HIARCS why not update the Sigma Chess GUI to Pro features enabling advanced features such as Nalimov Endgame Tablebases, Huge transposition tables and Set Elo opponents from 1250 Elo to 2900+ Elo!  You can update Sigma Chess here.


horizontal rule

"It is exhilarating to play [HIARCS], more, a lot more than with any other strong program. It is a real pleasure to be defeated that way. Fast, lightning, unexpected death." - Fernando Villegas, April 2007
"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 world title match with Super GM Veselin Topalov

"This level of service is one other big reason to buy HIARCS." - John Jackson, November 2009

For Palm, PC, Mac, Pocket PC and iPhone Chess Software with attitude, features and chess playing strength, you can't beat HIARCS!
Highest performance reached depends on hardware/device used.

HIARCS Chess Software is designed and developed by Mark Uniacke in England.
HIARCS is a trademark of Applied Computer Concepts Ltd. All other product trademarks acknowledged.
Copyright 1991-2010 Applied Computer Concepts Ltd. All rights reserved. Last modified: Thursday September 16, 2010.
the HIARCS Team here:  .  Read our Privacy Policy here