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Your first chess program.
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Sam Hamilton



Joined: 23 Jun 2006
Posts: 1095
PostPost subject: Re: Your first chess program.    Posted: Fri Apr 20, 2012 2:15 pm Reply to topic Reply with quote
In 1988, my junior year of high school, I came up with a neat idea for a chess program (mini-max). I wrote down a simple eval function and used to play games simulating (aka trying to calculate in my head) the heuristic against whoever I could find (pretty bad games, since I was simulating a 3 ply search with no Q-search). I think I first learned other people did this stuff in 1989 when I found the book Computer Chess II at Powell's bookstore. At that time, I had written my own program which had an awful version of alpha-beta I had made up myself (I don't remember it exactly but I do remember it pruned much less than it should have) and tried to use capture extensions and such instead of a q-search. It did have a pretty decent eval function though, with pawn structure, outposts, trapped piece detection, mobility and such. Move generation was a whole bunch of if then's Smile.

-Sam
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Subject Author Date/Time
Your first chess program. Dan Honeycutt Fri Apr 20, 2012 1:07 pm
      Re: Your first chess program. Martin Sedlak Fri Apr 20, 2012 1:28 pm
            Re: Your first chess program. Sam Hamilton Fri Apr 20, 2012 2:15 pm
            Re: Your first chess program. Joshua Shriver Sun Apr 22, 2012 4:54 am
                  Re: Your first chess program. Ted Wong Sun Apr 22, 2012 6:28 am
      Re: Your first chess program. Thomas Petzke Fri Apr 20, 2012 2:02 pm
      Re: Your first chess program. Don Dailey Fri Apr 20, 2012 4:07 pm
      Re: Your first chess program. Gerd Isenberg Fri Apr 20, 2012 5:31 pm
      Re: Your first chess program. H.G.Muller Fri Apr 20, 2012 6:10 pm
      Re: Your first chess program. Jan Brouwer Fri Apr 20, 2012 7:05 pm
            Re: Your first chess program. Mark Lefler Sat Apr 21, 2012 11:59 pm
                  Re: Your first chess program. Don Dailey Sun Apr 22, 2012 12:11 am
                        Re: Your first chess program. Ed Schroder Sun Apr 22, 2012 8:28 am
                              Re: Your first chess program. Don Dailey Sun Apr 22, 2012 11:23 am
                              Re: Your first chess program. J. B. Buijs Sun Apr 22, 2012 2:03 pm
                                    Re: Your first chess program. Don Dailey Sun Apr 22, 2012 2:22 pm
                                          Re: Your first chess program. Dan Honeycutt Sun Apr 22, 2012 4:18 pm
                                                Re: Your first chess program. Don Dailey Sun Apr 22, 2012 4:23 pm
                                                      Re: Your first chess program. Dan Honeycutt Sun Apr 22, 2012 4:31 pm
                                                            Re: Your first chess program. Ed Schroder Sun Apr 22, 2012 5:11 pm
                                                                  Re: Your first chess program. Julien MARCEL Sun Apr 22, 2012 7:35 pm
      Re: Your first chess program. Robert Hyatt Fri Apr 20, 2012 7:34 pm
            Re: Your first chess program. Julien MARCEL Fri Apr 20, 2012 11:33 pm
      Re: Your first chess program. J. B. Buijs Sat Apr 21, 2012 6:27 am
      Re: Your first chess program. Evert Glebbeek Sat Apr 21, 2012 6:32 am
      Re: Your first chess program. Jon Dart Sat Apr 21, 2012 7:27 pm
            Re: Your first chess program. Martin Brown Mon Apr 23, 2012 10:19 am
                  Re: Your first chess program. Jon Dart Tue Apr 24, 2012 12:01 am
      Re: Your first chess program. Harald Lüßen Sat Apr 21, 2012 11:20 pm
            Re: Your first chess program. F. Bluemers Sat Apr 21, 2012 11:44 pm
                  Re: Your first chess program. Harald Lüßen Sun Apr 22, 2012 8:43 am
                        Re: Your first chess program. Matthias Hartwich Mon Apr 23, 2012 8:11 pm
                              Re: Your first chess program. Thorsten Czub Tue Apr 24, 2012 6:50 pm
      Re: Your first chess program. Joshua Shriver Sun Apr 22, 2012 4:43 am
      Re: Your first chess program. Ron Murawski Mon Apr 23, 2012 12:16 am
            Re: Your first chess program. Vincent Diepeveen Mon Apr 23, 2012 8:38 am
            Re: Your first chess program. Evert Glebbeek Mon Apr 23, 2012 8:45 am
                  Re: Your first chess program. Ron Murawski Wed Apr 25, 2012 4:45 am
      Re: Your first chess program. Martin Brown Mon Apr 23, 2012 9:36 am
      Re: Your first chess program. John Merlino Tue Apr 24, 2012 1:06 am
            Re: Your first chess program. Vincent Diepeveen Tue Apr 24, 2012 5:28 pm
                  Re: Your first chess program. John Merlino Tue Apr 24, 2012 6:41 pm
      Re: Your first chess program. Oscar Toledo G. Fri May 04, 2012 5:28 pm
      Re: Your first chess program. Giorgio Medeot Thu May 10, 2012 3:50 pm
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