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Subject: Re: Resources about rotated bitboards

Author: Robert Hyatt

Date: 08:04:23 01/15/04

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On January 15, 2004 at 05:29:01, Gerd Isenberg wrote:

>On January 14, 2004 at 23:20:24, Robert Hyatt wrote:
>
>>On January 14, 2004 at 21:38:08, Federico Corigliano wrote:
>>
>>>Hi to all
>>>
>>>In my engine I use some bitboards, but nothing about rotated bitboards for
>>>bishop, rooks and queen moves.
>>>
>>>What chess sources or web pages can you recommend me?
>>>
>>>One answer can be Crafty. Seems to be a little difficult to understand but I
>>>don't tried yet :-)
>>>
>>>Greetings,
>>>Federico
>>
>>
>>go to
>>
>>www.cis.uab.edu/info/faculty/hyatt/hyatt.html
>>
>>go down about 2/3 and look for "online reports".  Click that, then click
>>the link for rotated bitmaps and read away.  :)
>
>Thanks Bob,
>
>for sharing your papers.
>Quite interesting for me, specially the DTS-paper.
>
>Cheers,
>Gerd

The DTS paper seems to be correct now.  The translator I used converted the
tables to .gif files for god only knows what reason.  I then translated the
.gif files to text, and when I inserted the text back into the paper before
converting it to html format, I simply typed the wrong filename and got
table 2 twice.  I fixed it earlier this morning.  I will try to eyeball all
the tables completely.  I did look at the speedup data and compared it to my
hand-written notes from when I wrote the paper, and they looked correct.  I
also "glanced" at the whopper tables on the end to make sure nothing was
duplicated, but I should check all the numbers later today to make sure that
an errant "r" in vi didn't zap something. :)




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