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Subject: Re: Rybka finds move Fischer played against Petrosian

Author: Terry McCracken

Date: 18:42:35 12/23/05

Go up one level in this thread


On December 23, 2005 at 05:41:45, Rolf Tueschen wrote:

>On December 23, 2005 at 02:54:51, Mike Byrne wrote:
>
>>history
>>
>>http://chessprogramming.org/cccsearch/ccc.php?art_id=30548
>>
>>FEN: [d]r1b1k2r/3qbppp/p4n2/3p4/Q7/2NB4/PP3PPP/R1B2RK1 w kq - 0 1
>>
>>
>>Rybka 1.01 Preview 2:
>>   3	00:00	       1.045	1.070.080	+0.80	1.Re1
>>   3	00:00	       1.149	1.176.576	+0.98	1.Bb5
>>   4	00:00	       1.312	1.343.488	+0.67	1.Bb5
>>   4	00:00	       3.806	243.584	+0.83	1.Re1
>>   5	00:00	       5.783	185.056	+0.96	1.Re1 d4
>>   6	00:00	      14.035	181.922	+0.88	1.Re1 Qxa4 2.Nxa4 Be6
>>   7	00:00	      23.875	173.390	+0.78	1.Re1 Qxa4 2.Nxa4 Be6 3.Nb6
>>   8	00:01	      57.427	187.876	+0.90	1.Re1 Qxa4 2.Nxa4 Be6 3.Bf4 Bb4
>>   9	00:01	     109.908	184.501	+0.86	1.Re1 Qxa4 2.Nxa4 Be6 3.Bf4 d4 4.Nb6
>>  10	00:02	     232.134	187.760	+0.85	1.Re1 Qxa4 2.Nxa4 Be6 3.Be3 d4 4.Bxd4 Rd8
>>5.Bxf6
>>  11	00:04	     633.424	190.380	+0.93	1.Re1 Qxa4 2.Nxa4 Be6 3.Be3 Rb8 4.Bxa6 0-0
>>5.Rac1
>>  12	00:09	   1.649.718	189.661	+0.78	1.Re1 d4 2.Bf4 Qxa4 3.Nxa4 Be6 4.Nb6 Ra7
>>5.Be5 0-0
>>  13	00:17	   3.141.957	190.828	+0.86	1.Re1 d4 2.Bf4 Qxa4 3.Nxa4 Be6 4.Nb6 Ra7
>>5.Rac1 0-0 6.a3
>>  14	00:30	   5.750.102	196.571	+0.80	1.Re1 d4 2.Bf4 Qxa4 3.Nxa4 Be6 4.Nb6 Ra7
>>5.Rac1 0-0 6.a3 g6
>>  15	01:32	  17.213.645	193.036	+0.89	1.Re1 Qxa4 2.Nxa4 Be6 3.Be3 0-0 4.Nc5 Nd7
>>5.Nxa6 Ne5 6.Bb5 Rfc8 7.Rac1
>>  16	02:24	  26.789.337	190.356	+0.83	1.Re1 Qxa4 2.Nxa4 Be6 3.Be3 0-0 4.Nc5 Nd7
>>5.Nxa6 Ne5 6.Bb5 Rfc8 7.Rac1 Rxc1
>>  17	04:35	  51.529.945	191.976	+0.88	1.Re1 Qxa4 2.Nxa4 Be6 3.Be3 0-0 4.Nc5 Nd7
>>5.Nxe6 fxe6 6.Rac1 Bb4 7.Red1 Ne5
>
>
>
>That is a typical example for the fallacy of the concept of "finding a move".
>Here we assume that 1. Re1 is a top move the engine should find but FRITZ for
>example doesnt find it, not because it's weaker than Rybka but because in the
>given line 3-00 is weak. 3...Nd7 and always the little threat Bb4 in mind gives
>Black some relief. As usual it makes not much sense to prove that some engine
>finds a single move in a position of choice. It's the whole game that should be
>compared. Since long we know that a single move dosnt prove either this nor
>that, it all depends... so to speak.


Are you a GM? No? Then maybe stop being so pompous and realize that this is
uncanny for an engine. No one is trying to "prove" the best move, although Re1!
is the best move in this case, I believe, and Bb5+?! is a mediocre move.

The point I'm making is you're missing the point.



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