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Strelka 5.5 vs Houdini & Critter
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Dr.Wael Deeb



Joined: 08 Mar 2006
Posts: 8613
Location: Amman,Jordan
PostPost subject: Re: Strelka 5.5 vs Houdini & Critter    Posted: Wed Apr 25, 2012 5:40 pm Reply to topic Reply with quote
lkaufman wrote:
Houdini wrote:
lkaufman wrote:
The time limit you cite is far too fast to justify any conclusion about which is the strongest 1 cpu unit in the world. Also, at the time limit you are using, you need to run Houdini 2.0 rather than 1.5, because it is well established that Houdini 2.0 is much stronger than 1.5 at bullet chess, just not at normal chess. If Strelka 5.5 can convincingly defeat Houdini 2.0 at any time limit, it will at least demonstrate that it is not basically just a Houdini clone. Also, you don't mention this, but presumably these are all just 32 bit versions, so until Strelka 64 bit is released your conclusion is wrong for yet another reason.

Larry, below some facts to enlighten your confusion:

1) At ultra-fast TC the difference in strength between Houdini 2 and Houdini 1.5 is exactly 24 Elo +/- 2 Elo.

2) Strelka 5.5 does not "convincingly defeat Houdini 2.0", in fact it is 10 to 20 Elo weaker than Houdini 1.5a. See the other thread about Strelka 5.5 in the "General Topics" Section.

3) Strelka 5 eval and search are 99% identical to Houdini 1.5a, but all the surrounding code (Time Management, UCI input/output handling etc) appears to be Ivanhoe-inspired or original.

4) The whole Strelka 5.5 business, with a cheat table containing 30,000 test positions, appears to be a late April Fools joke.

Robert


I wasn't confused, in fact for once I was on your side. My point was that Houdini 2 is stronger than 1.5 at game in a minute or faster, just as you say, so his test was invalid for determining the strongest 32 bit single core engine even at bullet chess. I don't doubt your statement that Strelka eval and search are 99% Houdini, but why in your opinion is Strelka 5.1 apparently a bit weaker than Houdini 1.5, just time-control issues?
The existence of free near-clones of top programs hurts both of us, so we have a common interest here. I imagine that Strelka's author felt justified by the fact that you did the same to Ippolit originally, but two wrongs don't make a right.


I just happen to love computer chess Laughing

Wink
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Display posts from previous:   
Subject Author Date/Time
Strelka 5.5 vs Houdini & Critter Alex Newman Tue Apr 24, 2012 1:41 pm
      Re: Strelka 5.5 vs Houdini & Critter Jouni Uski Tue Apr 24, 2012 1:55 pm
            Re: Strelka 5.5 vs Houdini & Critter Alex Newman Tue Apr 24, 2012 3:45 pm
      Re: Strelka 5.5 vs Houdini & Critter Larry Kaufman Tue Apr 24, 2012 11:32 pm
            Re: Strelka 5.5 vs Houdini & Critter Robert Houdart Wed Apr 25, 2012 12:00 am
                  Re: Strelka 5.5 vs Houdini & Critter Larry Kaufman Wed Apr 25, 2012 12:16 am
                        Re: Strelka 5.5 vs Houdini & Critter Alex Newman Wed Apr 25, 2012 5:30 pm
                              Re: Strelka 5.5 vs Houdini & Critter Larry Kaufman Wed Apr 25, 2012 6:03 pm
                                    Re: Strelka 5.5 vs Houdini & Critter Dr.Wael Deeb Wed Apr 25, 2012 6:33 pm
                                    Re: Strelka 5.5 vs Houdini & Critter Robert Houdart Wed Apr 25, 2012 10:41 pm
                        Re: Strelka 5.5 vs Houdini & Critter Dr.Wael Deeb Wed Apr 25, 2012 5:40 pm
                              Re: Strelka 5.5 vs Houdini & Critter Alex Newman Wed Apr 25, 2012 5:56 pm
                                    Re: Strelka 5.5 vs Houdini & Critter Dr.Wael Deeb Wed Apr 25, 2012 6:29 pm
      Patched Strelka 5.5 vs Houdini Alex Newman Thu Apr 26, 2012 1:30 pm
            Re: Patched Strelka 5.5 vs Houdini Ernest Bonnem Thu Apr 26, 2012 4:10 pm
                  Re: Patched Strelka 5.5 vs Houdini Alex Newman Thu Apr 26, 2012 5:06 pm
            Re: Patched Strelka 5.5 vs Houdini Ingo Bauer Fri Apr 27, 2012 2:09 am
                  Re: Patched Strelka 5.5 vs Houdini Alex Newman Fri Apr 27, 2012 2:40 am
                        Re: Patched Strelka 5.5 vs Houdini Ingo Bauer Fri Apr 27, 2012 11:49 am
                              Re: Patched Strelka 5.5 vs Houdini Julien MARCEL Fri Apr 27, 2012 3:45 pm
      Re: Strelka 5.5 vs Houdini & Critter Mike Scheidl Fri Apr 27, 2012 2:52 am
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