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

HIARCS Home Online Book Access Book Download Sub Free Opening Books

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Free HIARCS Opening Book Downloads

This page hosts the download links for the free HIARCS Chess Opening Books. This page will be updated periodically as new books are released. To access the latest and strongest HIARCS Chess Opening Books please subscribe to our book update subscription.

HIARCS professional books in the book subscription are many times larger with the latest human, correspondence and computer games. They are the strongest available opening books and are at least 100 Elo stronger than the free chess opening books hosted here.

Please note these books are free for you to download and use for your personal use only. Under no circumstances are the books to be hosted on another website without the prior express written permission of Applied Computer Concepts Ltd.

iPhone/iPad HIARCS Chess

iPhone, iPod Touch or iPad customers can now download custom books from this page for their device. Book subscribers should refer to the subscribers download page for our full tournament book in HBG format.

To update the opening book on your device please follow these steps:

  1. From your desktop computer which runs iTunes download the HBG format opening book below or from our subscriber pages
  2. Unzip the downloaded book onto your desktop making a note of its location
  3. Connect your device to your computer with iTunes running.
  4. Click on your device under DEVICES and click the Apps tab. Scroll down to File Sharing and you will see HIARCS Chess listed under Apps, click on the HIARCS icon/name and you will see the Chess Documents HIARCS currently has access to
  5. you can now drag and drop the HBG format book you have downloaded into HIARCS' documents and it will be transferred to your device with a sync.
  6. Now in HIARCS Chess choose Hiarcs->Info & Updates menu item and tap Book update and HIARCS will read in the latest book.

You can see the book version number in the HIARCS: Info & Updates screen. HIARCS Chess will always use the latest book available in its Documents folder.

bulletHIARCS 13.064 Book in HBG format (13.4Mb) - for use in HIARCS Chess on the iPhone or iPad
HIARCS iPhone/iPad custom tournament book (medium edition) includes statistics from top quality games up to June 2011.
Click here to download the HIARCS 13.064 HBG book

PC Windows

Customers who wish to use the CTG format book will need a GUI capable of reading this format, ie. Chessbase GUIs. Please save the book in your book folder. We strongly recommend that you "Optimize" the book in the Book options dialog so the tournament moves are chosen. The book is very wide even in tournament mode unlike most other books.

Please note for top performance in play you should allow HIARCS to use its own engine book which is included in the HIARCS installation and updated via the book subscription. To ensure HIARCS is using its own engine book, you should turn off or unload any GUI books being used by the chess GUI you are using.

bulletHIARCS 12 Book in CTG format (24Mb) - for use under PC Windows Chessbase GUIs
HIARCS Opening book from 2008. Includes statistics from top quality games up to 2008.
Click here to download the HIARCS 12 CTG book

 
bullet HIARCS Reference Book Lite CTG format (59Mb) - for use under PC Windows Chessbase GUIs
An opening book reference including statistics from 62,664 top quality human games up to 2009.
Includes human games >= 2550 Elo up to 2009. It excludes correspondence and computer games.
Not tuned or intended for computer play - please use HIARCS own engine book for that.
Click here to download the HIARCS Reference Book Lite

 
bullet HIARCS Reference Book Lite ABK format (12Mb) - for use under PC Windows Arena GUIs
An opening book reference including statistics from 62,664 top quality human games up to 2009.
Includes human games >= 2550 Elo up to 2009. It excludes correspondence and computer games.
Not tuned or intended for computer play - please use HIARCS own engine book for that.
Click here to download the HIARCS Reference Book Lite

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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.   *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.
Copyright 1991-2014 Applied Computer Concepts Ltd. All rights reserved. Last modified: Tuesday March 18, 2014.
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