Recent News
Butterfly chess engine (20Apr2012)
Giuseppe Cannella offers a minimally altered version of the portable (no install) Tarrasch package to demonstrate his Butterfly open source engine. Thanks Giuseppe!
No install version (14Mar2012)
I've packaged the Tarrasch executable and support files into a no-install .zip file for users who prefer this option. Available on the download page.
Whoops (6Mar2012)
For a little less than 24 hours, on March 5th, I had mistakenly reverted my download links to V2.00a, i.e. the old version before the maintenance release. Sorry about that. If you downloaded on or around that date, check your Help -> About menu to make sure you are running V2.01.
Tarrasch V2.01a Maintenance Release (18Feb2012)
This is fully documented on my blog. The main bugs fixed allow Houdini to work more smoothly, ensure that the custom UCI parameter feature works as intended, and that the 4th line of Kibitz text works properly.
Tarrasch V2 open sourced (finally) (8Jan2012)
Go to this public repository. to download the source and start collaborating on the project.
Komodo edition released (1Nov2011)
A slightly modified version of Tarrasch that includes the Komodo engine is now hosted on Komodo's website. Komodo is the second major engine (after Rybka) that provides Tarrasch in this way as a particularly easy way to use the engine.
Tarrasch V2 released (13Sep2011)
Finally! Compared to the last beta, next and previous file game buttons have been added. Also a larger font option, and some small bug fixes and enhancements.
Updated Tarrasch V2 beta with new features (7Sep2011)
Tarrasch V2 beta has been re-released with some useful new features, including resizable move and kibitz windows, an optional smaller chess board, and custom UCI engine parameters.
Tarrasch V2 Beta version released (19Aug2011)
Tarrasch V2 is now feature complete, and much more stable than the previous alpha version. It's now available to the public to download and try. Please remember what 'beta' status means; The program is not yet fully tested. If you are willing to try the program, please let me know what you think of it. Obviously any problems or bugs found are of particular interest to me.
Tarrasch V2 Alpha version released (13Mar2011)
If you'd like to play with a nearly complete, but not fully tested version of Tarrasch V2, go over to the Tarrasch Chess GUI blog and ask for download instructions. The reason you have to ask for a copy is that I don't want uncontrolled access to a piece of software that hasn't yet been tested, polished and tuned. But I do want people who are interested in Tarrasch V2 (and have been patiently waiting a long time) to have a chance to see what it will offer.