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Subject: Re: Anti-GM - Is the Original Rebel Example Sound?

Author: Howard Exner

Date: 11:02:14 07/17/98

Go up one level in this thread


On July 17, 1998 at 05:52:03, blass uri wrote:

>
>On July 16, 1998 at 18:59:31, Howard Exner wrote:
>
>>On July 16, 1998 at 15:12:57, blass uri wrote:
>>
>>>
>>>On July 16, 1998 at 07:01:07, Howard Exner wrote:
>>>
>>>>On July 16, 1998 at 01:42:30, blass uri wrote:
>>>>
>>>>>

>>Is white still ok with 1. Rxe6 fxe6 2. Bh6 a6 3. Bxa6 Qc7 4. Nxe6 Qc6 5. Bxb7
>>Qxb7 6. Re1 ...
>after 6.Re1 Qc6 black has the advantage according to my programs.
>I think the line1. Rxe6 fxe6 2. Bh6 a6 3. Bxa6 Qc7 4. Nxe6 Qc6 5. Bxb7
>Qxb7 is good for black.

Yes this line is good for black. Is Qf3 a better move than 7.Rxe6 ?

Here's what I'm getting in this position:
1. Rxe6 fxe6 2. Bh6 a6 3. Bxa6 Qc7 4. Nxe6 Qc6 5. Bxb7 Qxb7 6. Re1 Qc6
7. Qf3 Ne5 8. Ng7+ Kd8 9. Qe4 Bf6 10. Nc5

>
>I believe Rxe6 is good for computers against humans(even against anand in 15
>minutes per game) if they play after fxe6 Bh6 because after Bh6 there is no
>simple forced line humans can calculate like after Nxe6.

Yes, Bh6 would have to be played next in this Rxe6 line. Computers will
sometimes play the "right" move for the wrong reasons. This looks line
one of those times. Not that Rxe6
is the absolute right move but probably no worse than other choices like
Qd3 or Bh6. My enjoyment of the game is that there is not always a best move to
make. "Best move" depends on who one is playing and on ones playing style.
I recall one of the classic Kasparov-Karpov games where Kasparov said
that "he knew Karpov would not play Nxb5 because it is just not his style".
Karpov too was often quoted by various chess authors, when he said something
like - why choose the complicated road to victory when a longer strategical path
will win (that's not the quote but the meaning is contained in it).Karpov
also writes often, "there are many roads leading to Rome".(you can tell I'm
a fan of Karpov). Computers on the other hand seem bound by ordering best moves
based on a fraction of a score (but I believe Bob Hyatt is implementing some
code that will play different moves against weaker opponents in order to avoid
unnecessary draws).

What is the name of your chess program? Have you worked on it a long time?
>
>Uri
>>
>>I'm still not ready to dismiss Rxe6 as unsound. Bob or fca, what are you
>>finding here? Uri, your analysis here is helping to sort this complicated
>>position out. My intuitive quess was that Rxe6 is a good move for computers
>>to make against humans in the absence of a much stronger move
>>as it compliments their strength - open, tactical positions.
>>
>>
>>>I did not decide if to play Qc7 or to play Bxa6 and sacrifise my queen



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