Hello MrSpock4,
I currently use the Deep Fritz 12 GUI and I also use two main UCI chess engines: Rybka 4 and Houdini 1.5. I have been using this GUI only recently so I am new to it too.
I assume that your "deep R4 with chessbase" also uses this same Fritz 12 GUI. If it would use the Aquarium GUI, what I will explain applies only for a user who uses the Fritz 12 GUI.
To install the UCI chess engine Houdini 1.5 in the Fritz 12 GUI:
1) Download the Houdini 1.5 exe file from the Houdini web site at
http://www.cruxis.com/chess/houdini.htm
2) Back to the Fritz 12 GUI to add this Houdini 1.5 UCI chess engine to this Fritz 12 GUI.
Go to the Engine tab, press the "Create UCI Engine" button. In Engine, press the dots to select the folder where you have downloaded the Houdini 1.5 exe file. It should now show you the Author as Robert Houdart and the Name as Houdini 1.5 x64. Press the OK button and OK to any possible other window and this step should install Houdini as a UCI chess engine into your Fritz 12 GUI that your Rybka 4 program I assume uses.
Now, when you are back to the Home tab and you want to test a position with Houdini 1.5. Make sure that you see Houdini 1.5 x64 clearly stated on the notation area for the chess engine notation area. If you see another chess engine, just click the title where it says Engine: (other chess engine here stated) and It will open a window where you can easily select Houdini 1.5 instead.
3) If you want support for tablebases with Houdini 1.5, you will have to download the Gaviota tablebases files, as Houdini 1.5 does not support the Nalimov tablebases (as far as I know).
---On the Houdini web page at
http://www.cruxis.com/chess/houdini.htm , it indicates that you have to download the Gaviota tablebases at
http://www.olympuschess.com/egtb/gaviota/ (the best way is to download at this link so that you can get the files fully compressed without having to do it yourself). Download all these 145 files in one folder from this web address (around 6 GB in size for all the files). 146 files in fact, 145 files plus one index file.
---Locate the uci file for Houdini 1.5 in C:\Users\User\AppData\Roaming\ChessBase\Engines.UCI . Do a search in Windows 7 if you prefer.
—The uci file for Houdini 1.5 is called “Houdini 1.5 x64.uci”.
—The full content of the “Houdini 1.5 x64.uci” file at C:\Users\User\AppData\Roaming\ChessBase\Engines.UCI was:
-------------
[ENGINE]
Name=Houdini 1.5 x64
Author=Robert Houdart
Filename=C:\Users\User\AppData\Local\ChessBase\Engines\Houdini_15_x64.exe
-------------
---Add 2 new lines in this file "Houdini 1.5 x64.uci". Now, the NEW full content of the “Houdini 1.5 x64.uci” file at C:\Users\User\AppData\Roaming\ChessBase\Engines.UCI should be:
-------------
[ENGINE]
Name=Houdini 1.5 x64
Author=Robert Houdart
Filename=C:\Users\User\AppData\Local\ChessBase\Engines\Houdini_15_x64.exe
[OPTIONS]
GaviotaTbPath=D:\MY DOWNLOADS\Games - Chess\Gaviota 3-4-5 EGTB files (Compressed)
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Remark: the folder where I downloaded these Gaviota tablebases, I called it: Gaviota 3-4-5 EGTB files (Compressed). Your folder name might probably be named differently than mine but your path name GaviotaTbPath should probably be different than mine.
There are 145 files for these Gaviota tablebases to download. Use the free program called "Free Download Manager" (do a Google search) to download all these files for you automatically into one folder using the tab Site Explorer and inserting the web address given above that is
http://www.olympuschess.com/egtb/gaviota/ .
With these steps, you should be able to use the UCI chess engine Houdini 1.5 with your Deep Rybka 4 program, providing that you have the Fritz 12 GUI as I think you have with this Deep Rybka 4 program.
Enjoy this amazingly strong chess engine Houdini 1.5 that is free too! At least more than 50 ELO better than the current Rybka 4.
Regards
MichaelIsGreat