http://bugs.winehq.org/show_bug.cgi?id=33852
--- Comment #13 from William Roberts wlroberts@tru.ca 2013-06-23 10:45:49 CDT --- IMO, you're right. It does seem to be a complex interaction between Wine, Tarrasch, and Houdini, as the Tarrasch-Houdini combination works in Windows, and Houdini works with other chess GUIs (such as Arena) in Wine. I'm surprised, as I thought that all UCI engines adhered to a common set of rules for exchanging data with a chess GUI -- but obviously that's not the case.
The simplest solution is to use Rbyka with Houdini; and I will. Thanks again for your help. I appreciate your patience and your promptness.