HIARCS Chess Opening Books

Each HIARCS chess product comes with its own digital chess opening book with the latest chess opening theory at the time of the release of the particular product. However, many chess players need to remain up to date with the latest chess opening theory throughout the year and online chess engine players like to have the latest and strongest chess opening books.

For many years HIARCS has had the strongest opening book available and it keeps getting stronger with every quarterly release. We even supplied the HIARCS tournament chess opening book to help 5 time World Chess Champion, Vishy Anand's team prepare for his World Championship match in which he was so successful.

We now find our book is sought after by many of world's strongest human players for both over the board and correspondence play - an essential resource for the serious chess player.

For customers of HIARCS Chess Explorer (Pro) we recommend the Online Access to HIARCS Chess Opening Books from HIARCS Chess Explorer (Pro)

For customers of Chessbase we recommend the HIARCS Tournament Chess Opening Book in CTG, HCS formats

The following table explains the different HIARCS opening books available and in what package they can be found.

Opening Book Based On Positions Accessed Using Available in product Location Format
Local Book Grandmaster over the board games 900,000 HIARCS Chess Explorer Pro (Mac & PC)
AND
HIARCS Chess Explorer (Mac & PC)
HIARCS Chess Explorer Pro (Mac & PC)
AND
HIARCS Chess Explorer (Mac & PC)
Local (included with Chess Explorer Pro) HBS
GM Grandmaster over the board games 2,121,620 HIARCS Chess Explorer Pro (Mac & PC)
AND
HIARCS Chess Explorer (Mac & PC)
HIARCS Chess Explorer Pro (Mac & PC)
AND
HIARCS Chess Explorer (Mac & PC)
Online FHBS
GM+ Grandmaster over the board and correspondence games 12,105,985 HIARCS Chess Explorer Pro (Mac & PC)
AND
HIARCS Chess Explorer (Mac & PC)
HIARCS Chess Explorer Pro (Mac & PC)
AND
HIARCS Chess Explorer (Mac & PC)
Online FHBS
HIARCS 15a (Engine) Strong human and computer games 13,629,350 (moves only, no statistics) HIARCS 15 and Deep HIARCS 15 chess engines HIARCS 15 engines
or
HIARCS Chess Explorer Pro (Mac & PC)
Local (included with Chess Explorer) HCS
H-Reference All known human master games 55,184,994 HIARCS Chess Explorer Pro (Mac & PC)
AND
HIARCS Chess Explorer (Mac & PC)
Online Tournament Book Access Subscription
AND
HIARCS Chess Opening Subscription
Online FHBS
GM++ Reference Grandmaster and Elite correspondence games 25,757,735 HIARCS Chess Explorer Pro (Mac & PC)
AND
HIARCS Chess Explorer (Mac & PC)
Online Tournament Book Access Subscription
AND
HIARCS Chess Opening Subscription
Online FHBS
Tournament Book Strong human and computer games 32,736,668 HIARCS Chess Explorer Pro (Mac & PC)
AND
HIARCS Chess Explorer (Mac & PC)
Online Tournament Book Access Subscription
AND
HIARCS Chess Opening Subscription
Online FHBS
HIARCS 15d (Chessbase CTG) Strong human and computer games 32,736,668 HIARCS Chess Explorer Pro (Mac & PC) and Chessbase compatible GUIs, e.g. Chessbase, Fritz or Aquarium HIARCS Chess Opening Subscription Local (download book) CTG
HIARCS 15d (13.507) (iPhone/iPad) Strong human and computer games 32,736,668 HIARCS Chess for iPhone or iPad HIARCS Chess Opening Subscription Local (download book) HBG
HIARCS 15b (Engine HCS) Strong human and computer games 32,736,668 (moves only, no statistics) HIARCS 15 and Deep HIARCS 15 chess engines HIARCS Chess Opening Subscription Local (download book) HCS

All books unless stated otherwise contain moves and detailed statistics including game results, Elo ratings, performances, year and play recommendations.

Purchase HIARCS Chess Explorer for a World class chess database, analysis and playing user interface, this includes the essential local and GM books (Deep HCE customers also get the GM+ book)

HIARCS Chess Explorer customers can subscribe to the Online Book Access Subscription a 1 year online access subscription to our Human Reference and Tournament books using HIARCS Chess Explorer.

Users of Chessbase software may be interested in our HIARCS Chess Opening Subscription a 1 year download subscription which includes the renowned HIARCS tournament book in multiple formats for use in Chessbase User Interfaces and allows online access to the Tournament and H-Reference book from HIARCS Chess Explorer.

Each book subscription includes quarterly updates to the books with the latest theory being played including new novelties. Improvements per year have averaged about 40 Elo points. Over the course of a year the opening book may contribute more to chess strength improvement than the increase in chess engine strength.


Please note the HIARCS opening books are for your personal use only. Under no circumstances are the books to used for commercial purposes, hosted on another website or used in official tournaments without the prior express written permission of Applied Computer Concepts Ltd. All HIARCS books are copyright © 1991-2022 Applied Computer Concepts Ltd. All rights reserved.