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Up Topic Rybka Support & Discussion / Rybka Discussion / Shahar Tzafrir Rybka Warrior Forum 24 hours a move
- - By wajit (**) [us] Date 2015-04-08 04:04
I don't know if your still around on these forums Mr. Tzafrir.  But I have something to show you.  That I know you will recognize immediately. Enjoy :)
Parent - By turbojuice1122 (Gold) [us] Date 2015-04-08 12:10
I don't know if Shahar ("Highendman") is still around here, but I certainly recognize this, as having been part of the black side team in this game.  In fact, as soon as I saw your post, I figured that you were posting about this position. :lol:  Shahar showed some extensive analysis of this, and seems fairly convinced that white was already winning some moves earlier.  I remember at the time that I had been extremely critical of a rook move that we made (19...Rae8?), and Shahar seemed to agree--I think it is still a long while before computers will see that black is bad after this, and even good interactive analysis will have trouble for some time to come.
Parent - By wajit (**) [us] Date 2015-04-10 10:48
Funny you would know that I would post this before even looking at it. "scarry" :)  but not totally surprised.  But his analysis was not totally perfect! I found a way years ago to stop white from playing d5.  Instead of playing Be8 which looses.  black should play b5! and now d5 looses for white.  :)  so the line would like this.  26. ... b5!  27. cxb  Be8. 28. Bxg4.   White holds and edge still but im not so sure if white will win.   Enjoy :)
Parent - - By wajit (**) [us] Date 2015-04-10 11:06
Most version of stock cant find d5.  There was the 11/11/2013 version that did there was one other version of stockfish in early part of 2014 was also able to find d5 but took a lot longer I think it was 5 hours but cant remember.  Ive tested many versions most fail.  but your going to love this.  The latest version of stockfish with the setting of split depth 5 setting.  Amazing!!!  here is my screen shot! Enjoy!
Parent - - By wajit (**) [us] Date 2015-04-10 11:11
It actually only took 5min 30 sec not what is in the screen shot.  but what is amazing is how little time it took to find it.  This is the fastest time that i have ever seen ever!  This analysis comes from a 4930k clocked at 4.5ghz using 12 threads hyperthread enabled yes.  Enjoy:)
Parent - - By turbojuice1122 (Gold) [us] Date 2015-04-10 12:08
I guess this is another of those positions where the computer might find it, but it will take much longer to see that it is winning. :smile:
Parent - By wajit (**) [us] Date 2015-04-10 12:11
only took 10 min to get the score up to around +.8 for white.  that's pretty strong score.    right now im at 1hour and 18 min the score has bounce up and down from 1.08 and now down to .89  but it will climb back up.  stockfish is definitely seeing this as wining.
Parent - - By Chaotic Chess (****) Date 2015-04-10 12:28
Thank you for sharing this, yes amazing! :smile:
Parent - By wajit (**) [us] Date 2015-04-10 12:37
Glad you enjoyed it.  :)
Up Topic Rybka Support & Discussion / Rybka Discussion / Shahar Tzafrir Rybka Warrior Forum 24 hours a move

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