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Subject: Problems with BitBoards?

Author: KarinsDad

Date: 21:11:02 01/11/99

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On January 11, 1999 at 23:01:45, Robert Hyatt wrote:

>On January 11, 1999 at 17:44:02, Bruce Moreland wrote:


>>If I were writing a program today I think I would try this first.

Now you guys tell me. After I started using BitBoards for both my evaluator and
for my legal move generator.

>I would agree.  We used it way back when because of the very issues this
>addresses.  Machines weren't fast, and it made a lot of sense.  I used this
>after I saw it in the Coko source in fact...  but somewhere around 1983-84
>we canned this when Harry dreamed up a vectorized attack detector that didn't
>work well with the board being this big.
>>You can write the whole thing in a few hours and have it go fast, without giving
>>yourself a stroke.
>>What Vincent says is open to debate.
>The main point here is 0x88, bitboards, or whatever, you *must* make a
>commitment to doing the best you can do, for a period of time sufficient to
>make sure you extract all there is to extract from the approach.  Too many
>try bitboards and give up after they find some difficulties they can't over-

What difficulties can be experienced with BitBoards? So far, they seem to work
great (or at least accurately, I haven't yet cleaned them up for performance).
Okay, you can drop the other shoe now.


  Others try 0x88 and give up without ever realizing all the places it
>is useful...
>classic mistake to try and give up too soon...

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