HIARCS Chess Software for PC Windows, Apple Mac and iPhone/iPad PC Chess Explorer
World Championship winning computer chess software program & downloads for chess database, analysis & play on PC, Mac and iPhone

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PC Chess Software

HIARCS Chess Explorer logoWorld class chess database, analysis and game playing program
The World Computer Chess Software Champion
Suitable for all players from beginners to the World Chess Champion with human-like play realism
Platform: PC MS Windows™ 7, 8 & 10 (all editions)
Playing ability: Beginner (750 Elo) up to World Chess Championship strength (3200+ Elo)†

Languages: English, French, German, Italian, Polish, Portuguese, Russian and Spanish
Detailed user manual and help videos in English
25th May 2021 edition now available

Immediate fulfilment of all product purchases by email


HIARCS Chess Explorer for PC

"I prefer using HIARCS Chess Explorer to Chessbase" - John Saunders, Chess Editor of Chess magazine for many years.

HIARCS PC Chess Explorer is a revolutionary chess database, analysis and playing program for PC Windows computers. It offers an innovative and intuitive new graphical user interface with powerful features together with the World Chess Software Champion HIARCS 14 chess engine. This unique combination is refreshingly easy to use and includes many new features for chess preparation, analysis and training for players of all abilities from beginner to Grandmaster. It has specialised features to help weaker chess players improve their chess including special realistic weakened opponents, a chess coach which can demonstrate mistakes, show improvements and help you improve your chess.

Key features include:

bulletWorld class chess user interface with advanced database, analysis and game playing features. Supports UCI chess engines
bulletWorld Chess Software Champion HIARCS engine, the highest rated single processor chess program on the official SSDF rating list
bulletWide range of realistic handicap levels for players of all strengths with coach advice, opening training and rates your play in Elo
bulletGame analysis, learn openings, prepare for opponents with near instant trees & searching, live game support and engine matches
bulletPackaged PGN databases (250,000+ games, ~1000 with annotations from IMs & GMs) and opening books with detailed statistics
bulletOnline access to up to 1,000Gb of chess endgame tablebases and GM opening books

Chess players will find HIARCS Chess Explorer for Apple Mac computers has many advanced features not seen in other chess software. You can analyse your chess games, improve your openings and prepare for your opponents. Choose set Elo strength opponents to play against. Now with engine v engine matches and live game presentation as used at the London Chess Classic tournament featuring the World's Elite players. With any PGN games database you have access to an instant tree of moves and statistics; and can get opening and performance reports on databases, chess players and openings. With game databases you can prepare for players and see their opening repertoire. A database of your games can be presented as a tree of your opening play.  HIARCS Chess Explorer unique features to report on popular openings are not available in other software, that is why Chess Magazine have used HIARCS Chess Explorer to produce the monthly Trends in Chess Openings for the last seven years!

The product is available in two versions:

    Deep HIARCS Chess Explorer
     HIARCS Chess Explorer Graphical User Interface (GUI)  May 2021 edition
        World Chess Software Champion Deep HIARCS 14 chess engine
        Multi-core/multi-processor version of Deep HIARCS 14 for maximum performance
        GUI access to online content of 1,000 Gb of chess endgame tablebases
        Online GM+ opening book includes theory from top class correspondence chess
        Packaged games databases with game annotations from chess masters
        Includes an exclusive game annotation from ex World Chess Champion Vishy Anand
        Immediate fulfilment by email any time of day or night
        Email delivery, free updates in the 1.series and discounted upgrades

Click to order Deep HIARCS Chess Explorer for PC Windows
    Price*: £79.95 / 89.95 / $99.95     SAVE 20% Today  £63.96 / €71.96 / $79.96

HIARCS Chess Explorer

        HIARCS Chess Explorer Graphical User Interface (GUI)  May 2021 edition
        Single core version of HIARCS 14
        Packaged games databases with game annotations from chess masters
        GUI access to standard online content
        Immediate fulfilment by email any time of day or night
        Email delivery, free updates in the 1.series and discounted upgrades

Click to order HIARCS Chess Explorer for PC Windows
    Price*: £44.95 / 49.95 / $59.95     SAVE 20% Today  £35.96 / €39.96 / $47.96

You can read the latest online manual for HIARCS Chess Explorer here. HIARCS Chess Explorer has integrated, searchable and context sensitive help, a detailed 105 page user manual and 24 videos explaining how to use the software.

A list of updates and features since version 1.0 can be read here

"In summary, this is an excellent chess system that is suitable for players of all strengths. It has a lot of features, comes with a super-strong engine, and it is very easy to use. Highly recommended" - Joe Petrolito, Independent review, Australasian Chess.

The independent SSDF rating group report Deep HIARCS 14 defeated Deep Fritz 13 at tournament time controls by 28-12 (70% +149 Elo perf). Download games.


HIARCS Chess Explorer has integrated, searchable and context sensitive help, a detailed user manual and 24 videos explaining how to use the software.
A list of updates and features since version 1.0 can be read here.

Main features:

bulletAdvanced Chess Graphical User Interface
bulletEasy packaged installation with auto install of chess engines
bulletHIARCS Chess Explorer GUI can use any UCI compatible PC chess engine
bulletHigh quality piece set graphics, board textures, artist designed icons
bullet Integrated features allow easy navigation of databases, games and players
bullet Comprehensive 108 page manual and context sensitive help is included
bullet Available for PC Windows or Apple Macintosh with native look and feel
bullet Multi-lingual support for English, French, German, Italian, Polish, Portuguese, Russian and Spanish
bulletHIARCS 14 World Chess Software Champion
bulletHIARCS 14 chess engine closely integrated with Chess Explorer GUI, engine can also be used any UCI compatible PC chess GUI
bullet Provides incredibly strong analysis, advice and play - single or multiprocessor version available
bulletFamous for its human-like and entertaining attacking playing style
bulletNew human play realism on weaker levels
bulletWorld's strongest commercial tournament openings book accessible directly by the engine
bulletBook and position learning are built-in helping HIARCS improve as it plays or analyses
bulletFull set of configurable HIARCS UCI engine parameters
bulletThe chess engine generally used by World Chess Champion Vishy Anand
bullet32 bit engine compatible with all Windows versions 32 and 64 bit with free updates in the HIARCS 14 series
bulletGame Explorer
bullet Comprehensive PGN database support including simultaneous handling of multiple databases, searching, filtering and sorting by game header, openings and positions, ECO opening name classification, game lists and much more.
Max single PGN database size limit is 1.75 million games. Multiple databases can be loaded.
bullet Extensive game notation support with variations, embedded text comments, annotations, diagrams, chess symbols and chess opening naming – all of which can be viewed, added and edited. Intuitive game entry with automatic suggestions based on move quality. Game print facilities with diagrams.
bulletDownload remote PGN databases and watch live games as they happen - Update live games with your analysis and have the main game continuation merged as the game progresses. As used at the London Chess Classic by the World's strongest chess players.
bulletPlayer Explorer
bulletView players, their performances and favourite openings
bullet Navigate to games and openings of players directly from the player dossier
bullet Integrated and automated repertoire summaries for databases and players
bulletOpenings Explorer
bulletWorld’s first multi-source real-time chess tree with live updates and filtering
bullet Create an opening book tree of the moves of your games automatically
bulletGives new insight into chess openings from different perspectives
bulletIntegrated access to a regularly updated online chess opening books
bulletHIARCS Book subscribers get integrated access to additional online content
bulletAll books and databases provide detailed opening statistics
bulletAnalysis Explorer
bulletAnalyse positions and games with multiple engines
bullet Multiple lines of analysis with history/statistics/preview boards, add analysis to game notation
bulletPost game analysis with any chess engine provides variation commentary
bulletCheck your own games for blunders and improvements
bulletLock engine analysis to a position while you navigate and modify the game
bulletIntegrated online access to massive Terabyte endgame databases to give precise answers about endgame outcomes (about 250 DVDs worth of data!).
bulletCustom Game Play mode
bulletFor playing games against the computer using any UCI engine available
bullet Integrated HIARCS chess engine has realistic human-like handicap levels with set Elo strength settings suitable for players from beginner to Grandmaster.
bulletChoose rated or unrated games with time controls or casual play
bulletChoose start positions and even opening selection for opening practice
bulletThe game play mode has an integrated coach to point out mistakes, distinguish move quality, point out good puzzle moves and give hints.
bulletAssess your chess ability and maintain a chess rating for you and your family
bullet Adaptive level matches opponents to your ability as you progress
bulletEngine matches - set up matches and watch chess programs play each other
bulletPackaged Databases
bulletLatest top quality books containing statistics from GM games
bulletTop quality GM database of games with consistent official Fide player names.
bulletAnnotated database of games including commentary from IM & GMs, even an exclusive annotated game by the World Chess Champion Vishy Anand.

HIARCS PC Chess Explorer is a software download product. It is a complete chess application with Graphical User Interface, chess engines and chess games databases. The ultimate chess software for PC Windows. °Windows XP supported by HIARCS Chess Explorer v1.9.1


HIARCS Chess Explorer is designed and developed by Michal Rudolf and Mark Uniacke.

HIARCS chess engines are designed and developed by Mark Uniacke.

Chess piece set images by Eric de Mund and Bruno Rizzuti based on fonts by Eric Bentzen and Armando Marroquin.

User Manual written by Mark Uniacke.

Language translations: English by Mark Uniacke, French by Alain Zanchetta, German by Christian Goralski, Italian by Bruno Rizzuti, Polish by Michal Rudolf, Portuguese by Claudio Zamana, Russian by Beglar Jobava and Spanish by Amador Cuesta.

Many games and annotations provided by www.chess.co.uk.

Beta testing and feedback by Ole Christensen, Chris Cook, Richard Fowell, Eric Hallsworth, Jonathan Naud, Matt Read, Bruno Rizzuti and Harvey Williamson and a number of other testers who prefer to remain private.

Move sounds by Ole Christensen.

Thank you to all those people (including those who prefer to remain private) who helped make HIARCS Chess Explorer a better product.

We also thank Eugene Nalimov and Andrew Kadatch for their kind permission to use their access code (copyright (c) Eugene Nalimov) and decompression code (copyright (c) Andrew Kadatch) for Nalimov tablebases in HIARCS chess engines.


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"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. Computer Chess Software with world class chess engine playing strength.
HIARCS is designed and developed by Mark Uniacke in England.

*VAT and local sales tax may be applicable. Prices given in GBP, USD and EUR are subject to change without notice.
Other currencies are subject to conversion rates from GBP.

HIARCS is a trademark of Applied Computer Concepts Ltd. All other product trademarks acknowledged.
Copyright © 1991-2021 Applied Computer Concepts Ltd. All rights reserved.
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