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Up Topic The Rybka Lounge / Computer Chess / egtb bug
- - By Wayne Lowrance (***) Date 2010-02-26 20:24
Hello all. after re-install of Windows Vista My work around for the egtb bug has not worked.
I have started from scratch.
Removed all gui update files, deleted rybka3, re-installed rybka3, re-installed gui update. Nothing
but nothing has helped.
The only thing I have noted is that the updated file does not contain gui11.iup. When I updated the
the previous update away back when I got a file named gui8.iup.
I wonder if this has anything to do with it. I believe this to be the problem.
Parent - - By Charles (**) Date 2010-02-27 04:14 Edited 2010-02-27 04:30
You do not manually update Fritz 10 and 11 (don't know about 12) the way you did earlier versions. Forget the old way. Chessbase went to something different for updating these versions.

Go to the below linked to page and scroll down to where it reads

If the update does not work as described above, you can do it manually

and find the instructions in the list for manually updating Fritz 11.

You can put the downloaded gui11.msi file on your desktop for instance, before double-clicking it.

You may also want to read this forum thread for any tips that might be in it.

Edited Spellling - Keyboard Keys Stick :)
Parent - - By Wayne Lowrance (***) Date 2010-02-27 04:54
Thank you, but alas it still does not work. I deleted all exiting upgrades, and
followed the instructions as you directed. This become quite challenging.
I hope some suggestion will help. It has frustrated me to no end Charles.
Thank you so very much for your input. Any other things I can try before I
take an ax to this octa comp.
Parent - - By Charles (**) Date 2010-02-27 05:21
Sorry, I do not understand exactly what you are saying. Are you saying it did not update Fritz 11 or are you saying Fritz 11 was updated but the egtb problem you wrote about is still there. The updating process is pretty straightforward I think, unless it is a Windows Vista issue and as to the egtb problem that is out of my sphere of knowledge.

Wish you success though
Parent - - By Wayne Lowrance (***) Date 2010-02-27 18:06
Thank you Charles. Did it up date Fritz11 ?, I guess so Charles, it appeared to have. BUT, the
problem still exists. I dont think it is a windows vista problem as It worked before the crash.
Thank you my friend
Parent - By Charles (**) Date 2010-02-27 21:24
In the first post in this thread Kullberg wrote:

In Fritz GUI:
Start Rybka by clicking "Change main engine". Click Engine parameters. Set MaxCPUs to 3 cores for a quad or 7 cores for an 8 cores comp. Load engine that way. Again click "Change main engine". Click Engine parameters. Set MaxCPUs to the number of cores you've got or any higher number. The bug is gone and all cores work

In this thread you wrote:

I then change cpu's to 1 and got the correct move. changed cpu to 8 and problem still there.

Does following Kullberg's directions to a "T", in making sure you choose seven (7) cores the first time (not a lesser number), and the second time you click "Change main engine" choosing eight (8) cores make a difference.

That's all I got.

As to whether or not the Fritz update was applied or not, I think going to Help > About in the menu, or something like that, you should see a date. The date is supposed to signify the date of the update. For example: if Chessbase packaged the update on January 12, 2009. Then the date you see would be January 12, 2009.

Plus, someone already told you in the other thread that the Fritz 11 update does not correct the Rybka endgame tablebase bug. So the Fritz 11 update and the tablebase bug are two separate things here.
Parent - - By Charles (**) Date 2010-02-27 22:29
One more thing. The above post by me on setting seven cores first may be a useless suggestion but I thought I'd throw it out there.

The reason for this post specifically is to suggest looking around and doing some reading on battery backups for your computer. I am assuming you did not have one since you wrote that you had a power failure that affected your computer. The good backups come with software so that if there is a power failure the battery backup software gently closes the computer down, or is supposed to anyway. I have a battery backup that I used for the last seven years and it protected the computer from abrupt power failures and spikes and drops in the electrical line. I think it extended the computers life. I haven't priced them lately but I think mine was less than five hundred when I got it. If you decide to look into it try to go for quality.

I'll also mention that though the battery backup is a sort of surge protector in itself, as a safeguard I do have the battery backup plugged into a qualty surge protector also.

Good Luck Man
Parent - By Wayne Lowrance (***) Date 2010-02-28 01:27
Thank you so much Charles, I really, really appreciate your complete help. Yes, I understood the cpu
change suggestion, also the hash suggestion. I have purchased a nice battery backup for my comp
and it has surge protection. I am running the backup through my MacPro and can see with a click
of mouse all of the backup status value. really nice.
I guess I give up my friend on this problem and wait for Vas and his R4 :)

A side observation. I think this egtb problem is a Rybka engine problem. In this vain I ran the test position
thru all of my popular engines, including clones. Surprise all commercial programs that I have work
fine with the position (none are as strong as R3 of course).
Here is the interesting part, All of these new freebies that I have tried are infected with this same egtb
problem. Interesting. I wonder what the good Dr. Hyatt would say about this fact, given he is so
willing to attack Vas.
Okey dokie Charles and every one else. thanks much
Up Topic The Rybka Lounge / Computer Chess / egtb bug

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