The Tarrasch Chess GUI


The main Triplehappy downloads are;

MillionBase 2.5 comprises 2.5 million games, from ancient to modern (up to Oct 2015). Is provided for use with Tarrasch courtesy of legendary chess programmer Ed Schroder. Many thanks to Ed.

TarraschBase is a 1.2M game database that is bundled with the main Tarrasch package. It comprises games since 1995 by 2200 or higher rated players. It is provided for use with Tarrasch courtesy of Mark Crowther founder of TWIC The Week in Chess. The current version is updated through TWIC 1367. Many thanks to Mark for permission to use his database within Tarrasch. Currently TarraschBase is all games from TWIC since 1995, where both players are Elo 2200 or higher, excluding some Blitz (and Bullet) events. You can buy the complete TWIC database directly from Mark, I encourage you to do so, it is excellent value. To protect Mark's commercial interests, you cannot export more than 10000 games at a time from TarraschBase to PGN format within Tarrasch. This restriction does not impose any limitations on database features within Tarrasch itself.

TarraschBase replaces the earlier Kingbase Lite in Tarrasch, since version Tarrasch V3.13a dated November 16th 2020. Thanks to Pierre Havard for permission to use Kingbase Lite. The Kingbase project is no longer actively maintained.

Other downloads;

The no install versions are offered for expert users who prefer to go without the convenience of a setup program. It includes the same Tarrasch executable, book and engines as the install version, just unzip anywhere and run.

An older version of the Tarrasch Toy engine is included with the standard Tarrasch packages. The newer version is slightly stronger, but since it uses time better it is less fun to play. Reptor is an older Triple Happy chess program. Reptor is a repertoire memorization training tool. Reptor is no longer under development, but may some keen users still find it useful.

Note that Web Browsers are increasingly paranoid about security and can be reluctant to let you download and run a program like Tarrasch.exe which is not developed by a big corporation. I am sorry, there's nothing I can do about this except reassure you that Tarrasch is a trustworthy program. (Update, November 2016: Actually I have come to realise there is one thing I could do which is to get the Tarrasch distribution properly signed. I will endeavour to find out what is required to do this soon).

Bill Forster
Triple Happy Ltd.