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Welcome to HIARCS, a World Championship winning chess software engine available for Pocket PC, Palm, Apple iPhone & iPod Touch, PDAs, PC and Macintosh computers. HIARCS provides the strongest chess software on many platforms and is available direct from the developer and is renowned for its high quality, world class chess strength, handicap levels and features. Unprecedented performance from handheld devices to multi-core/processor desktops.
Congratulations to human World Chess Champion Vishy Anand on successfully defending his title.
HIARCS iPhone Chess for the iPhone and iPod Touch now available on the Apple App Store. HIARCS
on Pocket PC wins 2009
Mescosur Cup
in Buenos Aires, Argentina, August 2009. Other recent tournament successes:
*Nalimov Endgame Tablebases required. Sigma Chess HIARCS is a software download product Prices from*: £24.95 / €29.95 / $39.95 *VAT may be applicable for European Union residents. LEARN MORE DOWNLOAD HOW TO BUY
April 2010
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| The premier HIARCS 13.1 single or multiprocessor chess engine in UCI form for use in all good chess GUIs | |
| FREE updates of the HIARCS 13 engine series as available and special upgrade pricing to an eventual HIARCS 14 UCI when purchased on www.hiarcs.com. | |
| Latest super strong HIARCS tournament opening book accessible directly through the engine | |
| Engine book and position learning are built in helping HIARCS improve as it plays or analyses | |
| Full set of configurable HIARCS UCI engine parameters | |
| Flexible user-friendly license | |
| UCI compatibility including FRC/Chess960 allowing integration into any GUI supporting UCI | |
| User defined playing strength from 750 Elo based on your chosen Elo with realistic human like play make HIARCS suitable for all players from beginner to World Champion. | |
| Includes discount coupon of 20% off future purchases on www.hiarcs.com (valid until 31st August 2010) |
PC Chess HIARCS 13 UCI is a software download product only. It requires a GUI supporting UCI engines such as Fritz, Chessbase, Arena, Chess Assistant, Shredder, Chess Partner etc.
Prices from*: £24.95 / €29.95 / $39.95 *VAT may be applicable for European Union residents.
May 2010
new HIARCS
13 now available
June 2009
HIARCS wins the 9th International CSVN Tournament in
Leiden, The Netherlands.
November 2008
HIARCS is top single-computer in Dutch Open
Computer Chess Championship in Leiden, The Netherlands
October 2008
HIARCS is top single-computer in World
Computer Chess Championship in Beijing, China
December 2007
HIARCS wins 17th International Paderborn
Computer Chess Championship in Paderborn,
Germany
Deep
Junior 11 UCI chess
engineDeep Junior by Amir Ban & Shay Bushinsky has long been established as one of the world's premier chess playing engines and has won many World Computer Chess titles. Deep Junior 11 is as aggressive and attacking as ever with a wonderful sense for king attacks and dynamic play - an essential partner for any attack minded chess player. The Deep Junior chess program is unique in its understanding of compensation and therefore chess players of all standards can use Junior to gain a deep insight into their games and prepare new exciting lines involving sacrifices with confidence. The chess knowledge has naturally also been improved so the Deep Junior 11 series is the strongest ever Junior and capable of supporting up to 24 cores simultaneously for the ultimate performance. Read more about Deep Junior for PC...
Key features:
| The latest premier Deep Junior 11 series multi-processor chess engines (32 & 64 bit) in UCI form for use in all good chess GUIs | |
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| New and strongest ever Deep Junior chess engine, probably more than 100 Elo stronger than Deep Junior 10.1 | |
| Early tests indicate it is clearly stronger than any previous Deep Junior including Deep Junior 2010. | |
| Many time World Computer Chess Champion and the program that drew match with Kasparov | |
| Original Deep Junior 11 series is essential for real chess players | |
| New Junior 11 chess openings book by GM Alon Greenfeld in Chessbase ctg format (511Mb) with latest cutting edge theory | |
| Integrated engine book for use where ctg cannot be used | |
| Full set of configurable Deep Junior UCI engine parameters | |
| Includes discount coupon of 20% off future purchases on www.hiarcs.com (valid until 31st August 2010) |
Deep Junior 11 UCI is a PC Windows software download product only. It requires a GUI such as Fritz, Chessbase, Arena, Chess Assistant, Shredder, Chess Partner etc, that support UCI engines. The new Junior 11 ctg chess openings book by GM Alon Greenfeld is exclusive to purchasers of Deep Junior 11 from www.hiarcs.com
Prices from*: £49.95 / €59.95 / $79.95 *VAT may be applicable for European Union residents.
LEARN MORE DOWNLOAD HOW TO BUY
17th May 2010
14th March 2010
Deep Junior 11.1a UCI released
10th March 2010
Deep Junior 11.1 UCI released

Low resolution view, High resolution screen shots available
on the product and
manual pages.
The new Hiarcs Palm Chess Pro 12.1 really is the ultimate Palm chess program. HIARCS for Palm has proven to be significantly stronger than all other Palm and Pocket PC chess software since 2004 and now it's much stronger than ever before! It has a full range of realistic weaker opponents catering for all players from absolute beginners to professional Grandmasters. HIARCS Palm Chess Pro now has superb energy saving handicap levels massively extending battery life both in play and analysis. The human-like playing style and settable Elo opponents give you the range of opponents and practice you need to really improve your chess. Now with database support and game variation/branches it is an excellent analysis tool for every chess player. Packed with many more features than any other Palm chess program, HIARCS Palm Chess Pro is really beyond comparison. Key features:
| World's strongest PDA chess program, true super GM strength in the Palm of your hand! | |
| Unlimited beginner, intermediate and advanced levels challenging all players. | |
| Special Energy Saver Handicap levels reduce battery use and can be set to your strength. | |
| Coach to teach moves, watch your games, point out mistakes and give hints. | |
| Built in Elo rating monitor rates your play and measures your progress. | |
| Multiple database support, includes 4 game databases of the great champions. | |
| Game variations through multiple linked game branches. | |
| Interfaces with desktop software using PGN format import and export. | |
| Unlimited levels and time controls: Casual, Blitz, Active, Fischer and Tournament. | |
| Many opening books available with latest theory for study and preparation. | |
| Openings named with Encyclopedia of Chess Openings (ECO) reference | |
| High res, colour graphics, multiple boards sizes, piece sets and VCR controls. |
Why not learn, play or analyse chess while you travel? HIARCS Palm Chess Pro makes a perfect companion on a journey. Free palm chess game demo software, opening books and updates available in the download area.
"It is the best Palm program (I have them all) and the strongest"
- Henri Arsenault
"A truly world-class achievement in
chess software development" - Bob Newell
"Now I add to your virtues extraordinary customer support!"
- James Breeden
HIARCS Palm Chess Pro is a software download product
Price*: £24.95 / €29.95 / $39.95 *VAT may be applicable for European Union residents.
LEARN MORE DOWNLOAD HOW TO BUY
"I must say that this just confirms my experience to date - HIARCS for Palm is an outstanding piece of software which I don't hesitate to recommend. It's nice to know that the developer behind it is so responsive and helpful as well!" - Adam Oellermann (author of "Blikskottel")

November 2009
HIARCS Palm Chess Pro 12.1u released stronger than
ever!
Sepetmber 2009
HIARCS 12.1 engine for PDAs achieves highest ever
official chess rating for a PDA of 2749 Elo on SSDF rating list
March 2009
HIARCS Palm Chess Pro v12.1 with +100 Elo strength and many great new features.
November 2008
Palm Chess HIARCS 9.7 on Zire 31 defeats GM Dusan
Popovic 3½-½ in match! (more soon).
November 2007
HIARCS for Palm version 9.7 released.
April 2006
HIARCS for Palm tops the Congress Pichay
Invitational ahead of 2 GMs, 8 IMs, 5 FMs and 18 NMs!
January 2006
HIARCS for Palm is clear top rated PDA
chess program on the SSDF rating list.
September 2005
HIARCS
on Palm PDA defeats Polish GM Piotr Bobras 3-1 in match!
June 2005
HIARCS
on Palm PDA defeats top
Russian Super-GM Sergey Volkov 3-1 in match!
May 2005
HIARCS on Palm PDA wins tournament with
Palm and dedicated chess computers.
January 2005
HIARCS on Palm PDA defeats top GM 3-1 in 4 Game Internet Match for a 2809 Elo performance
rating!
December 2004
Rated top Palm chess program for
strength and features by the world's best computer chess
magazine: Selective
Search
Our latest chess product offering the world's strongest chess engine on Pocket PC devices. We have partnered with the excellent CEBoard Pocket PC Chess GUI to provide the great combination of the strongest chess engine together with superb user friendly features for chess players of all strengths. A particular highlight of the new product is the enormous range of special energy saving levels and move advise / highlighting which give players of all strengths the opponents and help they need. CEBoard HIARCS now includes the new premier HIARCS 13.1 chess engine running natively on ARM based Pocket PC devices.
HIARCS is the first chess engine in history to score an undefeated super Grandmaster performance on Pocket PC devices in a Grandmaster tournament, winning the 2008 and 2009 Mescosur Cup in Buenos Aires, Argentina with super GM performances. In addition it offers these great features:
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World's strongest Pocket PC chess program, true super GM strength in your hand! | |
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Suitable for all players from beginner to super Grandmaster (700 Elo - 2800 Elo!)†. | |
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Special Energy Saver Set Elo levels reduce battery use and can be set to your strength. | |
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Coach to highlight square safety, move quality and highlight mistakes | |
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Fully configurable chess engine including time controls, playing style and search. | |
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Top quality 2.4 million position opening book with latest theory for study and preparation. | |
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Named chess openings and Encyclopedia of Chess Opening (ECO) codes. | |
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Unique graphical advise capability to demonstrate and highlight move options & quality. | |
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Multiple lines of analysis and graphical & algebraic book presentation | |
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CEBoard GUI supports PGN databases including variations and comments | |
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CEBoard support high resolution, colour graphics with multiple boards and piece styles. |
To find out more about this new Pocket PC chess product visit our Pocket Chess HIARCS page.
Prices*: £24.95 / €29.95 / $39.95 *VAT may be applicable for European Union residents.
September 2009
HIARCS 12.1 for PocketPC achieves highest
ever official chess rating for a PDA of 2749 Elo on SSDF rating list
August 2009
HIARCS wins 2009 Mercosur Cup in Buenos
Aires, Argentina ahead of grandmasters
December 2008
Pocket Chess HIARCS for CEBoard on Pocket
PC launched
August 2008
HIARCS wins 2008 Mercosur Cup in Buenos
Aires, Argentina ahead of grandmasters

HIARCS is a World Championship winning chess program that has proven to be the strongest chess program on Palm and Pocket PC devices and is now available for the iPhone and iPod Touch.
This power enables your iPhone to play chess like a super Grandmaster, analyse games and chess problems with you, while offering numerous features to help you learn and improve as you play with HIARCS.
HIARCS Chess has a full range of realistic weaker opponents and playing styles catering for all players from absolute beginners to professional Grandmasters. On the weaker playing levels HIARCS will make human-like mistakes appropriate to the level of play and this together with the in-built coach watching allows you to learn and improve quickly. HIARCS can even adjust its playing strength as you improve and learn more. In addition it offers these great features:
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Strongest chess program on iPhone and iPod Touch - genuine strong GM level | |
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Suitable for all players with low energy settable Elo levels and opponents | |
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Play white or black, analyse or watch game with settable chess clock for timed play | |
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Rates your play in Elo, a coach warns about mistakes with hint moves and takebacks | |
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Friendly user interface with 5 piece sets, colour schemes and figurine notation | |
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Over 1 million move opening book with move choices and opening names displayed | |
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Save/Load/Email game, set up positions, navigate through game |
To find out more about this new Apple iPhone chess product visit our HIARCS iPhone Chess product page.
"The playing program is good. It is
good enough to beat 99.9% of chess players on this planet....It gives an
excellent entertainment and educational value...On
the scale of 1 to 10, I give it a 9.5. Well done!
HIARCS iPhone Chess is vailable only on the Apple iTunes App Store.
August 2009
HIARCS iPhone Chess for iPhone and iPod Touch launched
| HIARCS version | Device | Played against/in | Result | Performance rating |
| Palm Chess HIARCS 9.5a | Zire 72 (ARM/312Mhz) | GM Jan Gustafsson (2616 Elo) | HIARCS won 3-1 | 2809 Elo |
| Palm Chess HIARCS 9.5a | Zire 72 (ARM/312Mhz) | GM Sergey Volkov (2682 Elo) | HIARCS won 3-1 | 2875 Elo |
| Palm Chess HIARCS 9.5a | Zire 72 (ARM/312Mhz) | GM Piotr Bobras (2655 Elo) | HIARCS won 3-1 | 2848 Elo |
| Palm Chess HIARCS 9.6 | Lifedrive (ARM/400Mhz) | 2nd Congressman Pichay Invitational, Philippines | HIARCS won tournament 6/7 points | 2748 Elo |
| Palm Chess HIARCS 9.7 | Zire 31 (ARM/200Mhz) | GM Dusan Popovic (2555 Elo) | HIARCS won 3½-½ | 2884 Elo |
| Pocket HIARCS 12.1 in PF3 | Pocket PC (ARM/624Mhz) | 2008 Mescosur Cup in Buenos Aires, Argentina | HIARCS won tournament 8/10 points | 2691 Elo |
| Pocket HIARCS 13 in PF4 | Pocket PC (ARM/528Mhz) | 2009 Mescosur Cup in Buenos Aires, Argentina | HIARCS won tournament 9½/10 points | 2938 Elo |
For over 10 years some of the best chess players in the world have been using HIARCS to prepare, analyse and play against. HIARCS is the result of 20 years active development by author Mark Uniacke and was the first PC chess program in history to win a match with an International Master (1996) and in 2003 it became the first chess program on a single processor to draw a match against a Super GM. In 2005 HIARCS on a Palm PDA became the first and only handheld chess program in history to defeat a GM in a match and in 2006 it was again the first and only handheld chess program to win a GM/IM tournament! In 2008 our Pocket PC chess engine won the 2008 Mescusor Cup in Buenos Aires, Argentina ahead of Grandmasters scoring 8/10 in the process. This is a performance of 2691 Elo which is the best ever chess performance rating of a chess program on PDA in a Grandmaster tournament in history. Meanwhile its big brother HIARCS on PC and Mac was producing brilliant attacking chess to win a number of international computer chess tournaments and was top single computer in the World Computer Chess Championship in Beijing, China, Oct 2008. In August 2009, our Pocket PC chess engine went more than one step better by scoring an unprecedented and undefeated 9½/10 points (3 points clear of second placed Grandmaster) and 2938 Elo performance rating! The greatest performance by any handheld chess computer in history.
"For me the Hiarcs brand is to PC chess what Mephisto was to dedicated - classy and a brand I trust." - Howard Deere
Recently a couple of customers posted these assessments of the HIARCS series of chess programs on a public forum, we think they nicely sum up what HIARCS is all about:
"...there is something that has been his [Hiarcs] monopoly, ever: style... The essence of Hiarcs style, if we still will use the word, is kind of an unrelenting, sharp, murderous, pitiless ability and hunger for blood... Hiarcs kills you as a guy jumping on you with a sword would do. No matter how good your position seems to be, how solid and ultra defensive, Hiarcs suddenly will find a corner to kick and put all your building in ruins. It is exhilarating to play it, more, lot more than with any other strong program. It is a real pleasure to be defeated that way. Fast, lightning, unexpected death." - Fernando
"Hiarcs by Mark Uniacke comes in so many formats there is virtually no place you can't play a game against it. HIARCS is actually an acronym that stands for "Higher Intelligence Auto Response Chess System", and it truly lives up the name. In 1997, during his rematch with Deep Blue, Gary Kasparov had this to say about HIARCS: "HIARCS is much better positionally than Deep Blue." HIARCS also holds the longest standing reign for maintaining a top 5 rating in the World. It has the distinction of improving the most per version over the course of it's history as well. Oh.. by the way.. it's a World Champion as well." - Peter Skinner
"If Hiarcs 11 is like a samurai that cut your head with a sharp blade in an instant, Hiarcs 12 is like a surgeon that extracts your brain from move 10. You simply do not see you are already dead... HIARCS 12 is even more dangerous, more vicious, more unstoppable. I am good enough not to fall in tactical mistakes, but Hiarcs does not need that to crush the opposition. Just a microscopic, a marginal imprecision, a matter of almost nothing and your fate is already written in the wall." - Fernando
Even the world's greatest ever player, Garry Kasparov, used HIARCS to prepare for IBM's Deep Blue 2!
Unsure if you need a professional chess program like HIARCS? - read our "Why Choose HIARCS?" page.
Historical old HIARCS version now being made available on our
free chess software page.
Follow computer chess by subscribing to Selective Search
- the longest running computer chess magazine.
"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!
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