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

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Mac Deep Junior Yokohama UCI chess engine

The World Computer Chess Champion chess engine for Mac OS X
Suitable for all players including the World Chess Champion
Platform: Any Apple Macintosh™ computer (2007 or later) running Mac™ OS X 10.7 (Lion), 10.8 (Mountain Lion), 10.9 (Mavericks), 10.10 (Yosemite) or 10.11 (El Capitan), 10.12 (Sierra), 10.13 (High Sierra), 10.14 (Mojave), 10.15 (Catalina), 11 (Big Sur) and 12 (Monterey)
Playing ability: World Chess Championship strength (3200+ Elo)†  
Engine authors: Amir Ban and Shay Bushinsky, Opening book author: GM Alon Greenfeld

Deep Junior Yokohama UCI is a chess engine (no GUI) for Mac OS X and is a software download product only. It requires a UCI compatible Mac chess GUI such as HIARCS Chess Explorer.

Buy Deep Junior Yokohama UCI for Apple Mac (Full multi core/processor version)
The ultimate Deep Junior UCI chess engine which can run on single, dual and quad core/processor machines and beyond - now capable of supporting up to 40 cores!
Licensed by personal license name and code emailed to you shortly after purchase

Click here to order Deep Junior Yokohama UCI for Apple Mac OS X
Price*: £37.50 / 44.95 / $49.95

Deep Junior Yokohama is the World Computer Chess Champion and 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 series are the strongest ever and capable of supporting up to 40 cores simultaneously for the ultimate performance.

Key features:

bulletDeep Junior Yokohama multi-processor UCI chess engine (64 bit)
bulletOlder Deep Junior 13 & 13.3 engine included
bulletLatest and strongest ever Deep Junior chess engines with most entertaining playing style
bulletSupports up to 40 cores with an improved multiprocessing algorithm
bulletStrength Limitation feature adjusts playing strength to suit players from casual amateur to Grandmasters
bulletMany time World Computer Chess Champion evolution of the program that drew match with Kasparov in 2003
bulletIntegrated engine book and Junior CTG opening book by GM Alon Greenfeld
bulletEmail delivery, discounted renewals

The following payment options are available: Credit Card, Solo/Switch/Maestro, Bank/Wire Transfer, Paypal, Check/Cheque and Cash. SSL (Secure Sockets Layer) encryption technology is used to transfer your data securely. The encryption is certified by VeriSign. As soon as payment is received you will immediately be sent an email with your personalised license name and code with download links for your purchased Mac Deep Junior 13 chess engine package.


Thank you to GM Alon Greenfeld for his contribution of the excellent Deep Junior Opening Book.

Thanks also to a number of other supporters who prefer to remain incognito.

Photograph of Kasparov and Deep Junior by John Henderson, thank you.

We 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 the Deep Junior chess engine.



† Highest performance reached depends on hardware/device used.
*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.

Copyright © 1991-2012 Applied Computer Concepts Ltd. All rights reserved. Last modified: Monday November 08, 2021.