Author: Leen Ammeraal
Date: 22:26:10 01/14/01
Go up one level in this thread
On January 13, 2001 at 17:38:30, Pete Galati wrote:
>On January 13, 2001 at 14:52:08, Leen Ammeraal wrote:
>
>>On January 13, 2001 at 14:35:49, Pete Galati wrote:
>>
>>>On January 13, 2001 at 13:46:15, Leen Ammeraal wrote:
>>>
>>>>I just uploaded a (rather restricted) WinBoard version,
>>>>wbqueen, of my chess program queen. Any reactions
>>>>are welcome. Being unfamiliar with ELO rating I would
>>>>appreciate any opinions (or better) about the rating
>>>>of this program, as well as suggestions how to improve it.
>>>>I programmed it in VC++6.0 and I used
>>>>
>>>>- rotated bitboards
>>>>- PVS/Negascout
>>>>- hashing
>>>>- nullmove pruning
>>>>- openings from the PGN files of about 350 FIDE games
>>>>
>>>>Leen Ammeraal
>>>>http://home.wxs.nl/~ammeraal/
>>>
>>>It always surprizes me when someone builds the opening book inot their exe. It
>>>seems to be working just fine, I didn't take the time to add it to the WBini
>>>file yet, but it's working without any problems so far.
>>>
>>>When you say "rather restricted", do you mean it doesn't use many Winboard
>>>commands and options yet?
>>>
>>>Pete
>>
>>Yes, that is what I mean. As for the opening book, it may interest
>>you to see a code fragment related to it:
>>
>>char *pOpenings[] =
>>{"e4 e5 Nf3 Nc6 Bc4 Bc5 c3 Nf6 d3 a6 Nbd2 O-O Bb3 d6 h3 Be6 Nf1 h6 g4 Nh7 Rg1 d5
>>Qe2 Be7 ",
>>"d4 Nf6 Nf3 g6 c4 Bg7 g3 d6 Bg2 O-O O-O Nc6 Nc3 a6 d5 Na5 Nd2 c5 Rb1 Rb8 b3 b5
>>Bb2 Bf5 ",
>>"Nf3 Nf6 d4 e6 c3 c5 Bg5 cxd4 cxd4 Qb6 Qc2 Nc6 Bxf6 gxf6 e3 d5 Nc3 Bd7 Be2 Rc8
>>O-O f5 Rfc1 Nb8 ",
>>"g3 d5 Bg2 g6 c4 c6 cxd5 cxd5 Qb3 Nf6 Nc3 e6 Nf3 Nc6 d4 Bg7 O-O O-O Bf4 Nh5 Rfd1
>>Nxf4 gxf4 b6 ",
>>
>>These are the first four of the 350 games I used. I downloaded
>>some file with these games from the Internet, and made them
>>somewhat shorter by deleting the move numbers and tags (using a simple
>>conversion program, which generated the above code). All positions
>>that occur with these moves, along with the next move, are stored
>>in my hashtable, using a modular counter that start at a random
>>position in this array pOpenings (to avoid getting the same
>>game each time), and that is the opening book! If you think
>>there is a better set of games for this purpose, please let me know.
>>
>>Leen
>
>I like the way you did that. It appears to use a relatively small amount of
>code that way. It looks like a tedious, repititious editing job though to put
>in the games. I need to take some time and play some games against WBQueen.
>
>Pete
Thank you for your reaction.
No this was not a tedious editing job at all. As I wrote earlier,
I used a self-made program to generate this code (consisting of move
sequences) on the basis of pgn files.
Leen
This page took 0 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.