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Zobrist alternative?
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Vincent Diepeveen



Joined: 09 Mar 2006
Posts: 1738
Location: The Netherlands
PostPost subject: Re: Zobrist alternative?    Posted: Sat Jun 16, 2012 10:05 am Reply to topic Reply with quote
wgarvin wrote:
hgm wrote:
I have bad experience with shifting keys by only 1 bit. I tried it in a simulator, and it drove up the number of key collisions enormously. When rotating keys by [????] bits I could not detect any difference in collision statistics with truly random keys.

I have no explanation for this; it was just an observation.


Hi hgm,

Your post says "rotating by 1 bit is bad, but rotating by N bits is good" but the number N is missing.

Could you please reply with the missing number, to sate my curiosity?

Thanks in advance! Laughing


ranrot is doing a few rotations number of bits rotated is small prime numbers of course. As then you can prove of course how long it'll take to get back to what you started with.
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Subject Author Date/Time
Zobrist alternative? H.G.Muller Tue Jun 12, 2012 7:35 pm
      Re: Zobrist alternative? Kevin Hearn Tue Jun 12, 2012 7:44 pm
      Re: Zobrist alternative? Daniel Shawul Tue Jun 12, 2012 8:19 pm
            Re: Zobrist alternative? H.G.Muller Tue Jun 12, 2012 8:54 pm
                  Re: Zobrist alternative? Daniel Shawul Tue Jun 12, 2012 9:46 pm
                        Re: Zobrist alternative? Daniel Shawul Wed Jun 13, 2012 3:24 am
                        Re: Zobrist alternative? Daniel Shawul Wed Jun 13, 2012 4:14 am
                              ignored idea here Daniel Shawul Wed Jun 13, 2012 4:00 pm
                                    Re: ignored idea here Daniel Shawul Thu Jun 14, 2012 1:30 am
                                          Re: ignored idea here H.G.Muller Thu Jun 14, 2012 5:50 am
                                                Re: ignored idea here Daniel Shawul Thu Jun 14, 2012 12:52 pm
                                          Re: ignored idea here Edmund Moshammer Thu Jun 14, 2012 8:21 am
                                                Re: ignored idea here Edmund Moshammer Thu Jun 14, 2012 9:27 am
      Re: Zobrist alternative? Wylie Garvin Tue Jun 12, 2012 8:27 pm
            Re: Zobrist alternative? H.G.Muller Tue Jun 12, 2012 8:36 pm
                  Re: Zobrist alternative? Vincent Diepeveen Wed Jun 13, 2012 1:01 pm
                  Re: Zobrist alternative? Wylie Garvin Wed Jun 13, 2012 10:57 pm
                        Re: Zobrist alternative? H.G.Muller Thu Jun 14, 2012 5:42 am
                              Re: Zobrist alternative? Robert Hyatt Thu Jun 14, 2012 1:17 pm
                                    Re: Zobrist alternative? H.G.Muller Thu Jun 14, 2012 2:17 pm
                                          Re: Zobrist alternative? Wylie Garvin Thu Jun 14, 2012 6:11 pm
                        Re: Zobrist alternative? Vincent Diepeveen Sat Jun 16, 2012 10:05 am
      Re: Zobrist alternative? Reinhard Scharnagl Wed Jun 13, 2012 9:52 am
            Re: Zobrist alternative? Edmund Moshammer Wed Jun 13, 2012 9:58 am
                  Re: Zobrist alternative? Reinhard Scharnagl Wed Jun 13, 2012 12:49 pm
                        Re: Zobrist alternative? Edmund Moshammer Wed Jun 13, 2012 1:15 pm
                              Re: Zobrist alternative? Reinhard Scharnagl Wed Jun 13, 2012 1:41 pm
                                    Re: Zobrist alternative? Edmund Moshammer Wed Jun 13, 2012 3:55 pm
                                          Re: Zobrist alternative? Reinhard Scharnagl Wed Jun 13, 2012 4:03 pm
      Re: Zobrist alternative? H.G.Muller Wed Jun 13, 2012 2:19 pm
            Re: Zobrist alternative? Vincent Diepeveen Wed Jun 13, 2012 2:44 pm
            Re: Zobrist alternative? Vincent Diepeveen Wed Jun 13, 2012 2:48 pm
                  Re: Zobrist alternative? Vincent Diepeveen Wed Jun 13, 2012 3:28 pm
                  Re: Zobrist alternative? H.G.Muller Wed Jun 13, 2012 4:01 pm
                        Re: Zobrist alternative? Vincent Diepeveen Wed Jun 13, 2012 5:42 pm
                              Re: Zobrist alternative? H.G.Muller Wed Jun 13, 2012 5:51 pm
                        Re: Zobrist alternative? Vincent Diepeveen Wed Jun 13, 2012 6:27 pm
            Re: Zobrist alternative? Daniel Shawul Wed Jun 13, 2012 5:29 pm
            Re: Zobrist alternative? Karlo Bala Jr. Thu Jun 14, 2012 9:50 am
      Re: Zobrist alternative? Reinhard Scharnagl Thu Jun 14, 2012 8:49 am
            Re: Zobrist alternative? H.G.Muller Thu Jun 14, 2012 9:09 am
            Re: Zobrist alternative? Daniel Shawul Thu Jun 14, 2012 1:11 pm
                  Re: Zobrist alternative? Vincent Diepeveen Sat Jun 16, 2012 10:12 am
      Re: Zobrist alternative? Don Dailey Thu Jun 14, 2012 4:46 pm
            Re: Zobrist alternative? Don Dailey Thu Jun 14, 2012 6:38 pm
                  Re: Zobrist alternative? Daniel Shawul Thu Jun 14, 2012 6:57 pm
                        Re: Zobrist alternative? Don Dailey Fri Jun 15, 2012 2:39 pm
                              Re: Zobrist alternative? H.G.Muller Fri Jun 15, 2012 3:46 pm
                                    Re: Zobrist alternative? Daniel Shawul Fri Jun 15, 2012 5:22 pm
                                          Re: Zobrist alternative? H.G.Muller Fri Jun 15, 2012 5:38 pm
                                                Re: Zobrist alternative? Vincent Diepeveen Sat Jun 16, 2012 10:17 am
                              Re: Zobrist alternative? Daniel Shawul Fri Jun 15, 2012 5:04 pm
                                    Re: Zobrist alternative? Don Dailey Fri Jun 15, 2012 6:00 pm
                                          Re: Zobrist alternative? Daniel Shawul Fri Jun 15, 2012 7:27 pm
                                                Re: Zobrist alternative? Don Dailey Fri Jun 15, 2012 8:16 pm
                                                      Re: Zobrist alternative? Daniel Shawul Fri Jun 15, 2012 8:42 pm
                                                      Re: Zobrist alternative? Daniel Shawul Fri Jun 15, 2012 9:14 pm
                                                            Re: Zobrist alternative? Don Dailey Fri Jun 15, 2012 10:59 pm
                                                                  Re: Zobrist alternative? Daniel Shawul Sat Jun 16, 2012 12:17 am
                                                                        Re: Zobrist alternative? Don Dailey Sat Jun 16, 2012 4:28 am
                                                                              Re: Zobrist alternative? Daniel Shawul Sat Jun 16, 2012 6:30 am
                                                                                    Re: Zobrist alternative? Daniel Shawul Sat Jun 16, 2012 10:09 am
                                                                                          Re: Zobrist alternative? Vincent Diepeveen Sat Jun 16, 2012 10:22 am
                                                                                          Re: Zobrist alternative? Vincent Diepeveen Sat Jun 16, 2012 10:42 am
                                                                                          Re: Zobrist alternative? Vincent Diepeveen Sat Jun 16, 2012 10:54 am
                                                                                          Re: Zobrist alternative? Daniel Shawul Sat Jun 16, 2012 11:03 am
                                                                                          Re: Zobrist alternative? Vincent Diepeveen Sat Jun 16, 2012 11:08 am
                                                                                          Re: Zobrist alternative? Don Dailey Sat Jun 16, 2012 12:03 pm
                                                                                          Re: Zobrist alternative? Vincent Diepeveen Sat Jun 16, 2012 12:55 pm
                                                                                          Re: Zobrist alternative? Vincent Diepeveen Sat Jun 16, 2012 2:21 pm
                                                                                          Re: Zobrist alternative? Daniel Shawul Sat Jun 16, 2012 2:25 pm
                                                                                          Re: Zobrist alternative? Vincent Diepeveen Sat Jun 16, 2012 2:44 pm
                                                                                          Re: Zobrist alternative? Daniel Shawul Sat Jun 16, 2012 12:35 pm
                                                                                          Re: Zobrist alternative? Vincent Diepeveen Sat Jun 16, 2012 1:11 pm
                                                                                          Re: Zobrist alternative? Vincent Diepeveen Sat Jun 16, 2012 1:15 pm
                                                                                          Re: Zobrist alternative? Vincent Diepeveen Sat Jun 16, 2012 1:56 pm
                                                                                          Re: Zobrist alternative? Daniel Shawul Sat Jun 16, 2012 2:05 pm
                                                                                          Re: Zobrist alternative? Vincent Diepeveen Sat Jun 16, 2012 2:10 pm
                                                                                          Re: Zobrist alternative? Daniel Shawul Sat Jun 16, 2012 2:22 pm
                                                                                          Re: Zobrist alternative? Vincent Diepeveen Sat Jun 16, 2012 2:29 pm
                                                                                          Re: Zobrist alternative? Daniel Shawul Sat Jun 16, 2012 2:35 pm
                                                                                          Re: Zobrist alternative? Vincent Diepeveen Sat Jun 16, 2012 2:39 pm
                                                                                          Re: Zobrist alternative? Don Dailey Sat Jun 16, 2012 3:49 pm
                                                                                          Re: Zobrist alternative? Daniel Shawul Sat Jun 16, 2012 4:35 pm
                                                                                          Re: Zobrist alternative? Daniel Shawul Sat Jun 16, 2012 2:11 pm
                                                                                          Re: Zobrist alternative? Vincent Diepeveen Sat Jun 16, 2012 2:13 pm
                                                                                          Re: Zobrist alternative? Vincent Diepeveen Sat Jun 16, 2012 2:19 pm
                                                                                          Re: Zobrist alternative? Daniel Shawul Sat Jun 16, 2012 2:29 pm
                                                                                          Re: Zobrist alternative? Vincent Diepeveen Sat Jun 16, 2012 2:32 pm
                                                                                          Re: Zobrist alternative? Daniel Shawul Sat Jun 16, 2012 4:19 pm
                                                                                          Re: Zobrist alternative? Don Dailey Sat Jun 16, 2012 4:50 pm
                                                                                          Re: Zobrist alternative? Daniel Shawul Sat Jun 16, 2012 4:25 pm
                                                Re: Zobrist alternative? Don Dailey Fri Jun 15, 2012 8:21 pm
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