Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: What approach do you use to handle castling/en passant for repetition?

Author: Tom Kerrigan

Date: 08:34:53 02/29/00

Go up one level in this thread


On February 28, 2000 at 16:53:45, Robert Hyatt wrote:

>How about if I tell you that if you compute x=a/b where b=0 you are going
>to have problems?  Do you need confirmation of the problem?  Or if you are

No.

I would appreciate it if you didn't trivialize the issue.

I asked you to back up your argument and you gave me some random numbers. Now
you are asking me if I need confirmation that divide-by-zero is bad. It's no
secret that you are being extremely insulting to me.

I don't understand why you would be so aggressive/insulting/defensive (?) unless
you can't back up your point. Here is a direct quote from you:

>All you have to do is run with and without EP hashed into your signature to
>see the problem.  I lost a game early in the crafty development due to this.

If it's so easy to prove your point ("All you have to do...") then why don't you
just comment out a few lines of code, run a little test, and post the results?

I suspect the reason you are being insulting is because it's extremely difficult
to prove your point with actual data. So Crafty lost 1 game in n thousand due to
this "bug." That doesn't tell me that it's the severe problem that you imply.

The reason I want actual data is because my own program does not hash EP
squares. So far, I have not seen one single program that can be attributed to
this. I would honestly like to know if I should change my program or if it's a
waste of my time.

But if you want to tell me that "lightning is bad for computers" or something
else that's frikking inane, you're welcome to do so.

-Tom



This page took 0.01 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.