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Subject: Re: Smirin vs. Shredder - a question

Author: Robert Hyatt

Date: 21:09:11 04/15/02

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On April 15, 2002 at 16:24:36, Mark Young wrote:

>On April 15, 2002 at 15:06:47, Robert Hyatt wrote:
>
>>On April 15, 2002 at 14:30:58, Mark Young wrote:
>>
>>>>
>>>>
>>>>Show me a computer that _really_ attacks.  I am not talking about just moving
>>>>pieces near the opponent's king, or sacrificing a piece for two pawns to get a
>>>>couple of open files.  I mean a program that really knows how to attack,
>>>>period.  With bishops on opposite corner from the king, clearing the diagonals,
>>>>etc.
>>>>
>>>>There just aren't any...
>>>
>>>Yes there is Bob....I don't know how you pull this stuff out of the air.
>>>
>>>Computers can and do attack, they use many "human" ideas in attacking.
>>
>>Computers basically attack by serendipity.  Plus some simple knowledge about
>>open and half-open files around the opponent's king.  But that is just a small
>>surface scratch in a large body of situations that are faced over the board.
>>
>>Just because a computer attacks in one game out of a hundred, does not mean
>>"that computer knows how to attack."  _every_ computer has looked brilliant
>>here and there againg GM-level players.  But those random samples are not
>>very common.
>
>Give it up Bob, First it's not any, now it is one in 100 games....Do I have to
>bore you by posting all the games.....to show just how dead wrong you are....You
>know I will do it, if that what you want. It's not "any", and its not "1 in
>100"....let get some common sense here Bob...Computers are not winning 2 to 1
>against GM players by serendipity alone.


Feel free to post several long games where the computer attacked a GM in a
real way.  The rebel game was one example.  I await others.

I've been watching these games for a long time, and _I_ haven't seen the
computers attacking the GMs...  So when that does happen occasionally, it
most likely _is_ serendipity.

A monkey will attack if given enough chances to move the pieces around...



>
>>
>>
>>
>>>
>>>Here is one recent example.
>>>
>>>Rebel Century 4.0 - GM Loek  van Wely
>>>
>>>
>>>1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 Be7 7. Bb5 Ncb8!
>>>
>>>Black can play a prophylactic move in a closed position.
>>>
>>>8. 0-0 b6 9. Qe2 a5 10. Be3 Ba6
>>>
>>>Janosevic - Suetin, Titovo 1966 and Nicevski - Sofrevski, Skopje 1967 continued
>>>with the immediate 10... 0-0.
>>>
>>>11. a4 c6 12. Bxa6 Nxa6 13. Rfc1
>>>
>>>
>>>
>>>White takes the initiative on the queenside.
>>>
>>>13...0-0 14. c4 dxc4 15. Rxc4 Ndb8 16. Nbd2 Nb4 17. Ne4 N8a6 18. Nfd2 Nc7 19.
>>>Qg4!
>>>
>>>The computer changes its strategy ! It plans an attack on the kingside.
>>>
>>>19...Kh8 20. Ra3 N4d5!
>>>
>>>The blockader in the centre assist in the defence of the kingside.
>>>
>>>21. Bg5 f6 22. exf6 gxf6 23. Rh3!
>>>
>>>
>>>
>>>23...Qe8
>>>
>>>Avoids 23...fxg5?? 24. Qh5.
>>>
>>>24. Qh4 Rf7 25. Bh6
>>>
>>>White has a slight advantage, but his bishop allows little progress. Black gets
>>>time for a counter-attack.
>>>
>>>25...b5 26. axb5 cxb5 27. Rc1 a4 28. Rg3!?
>>>
>>>Rebel keeps the pressure on the kingside. Better use of the mobility of white's
>>>pieces makes 28. Nc5!
>>>
>>>28...a3?!
>>>
>>>More solid is 28...Rc8 29. Nf3 Bf8.
>>>
>>>29. bxa3 Rxa3 30. Nf3!?
>>>
>>>The expected move is 30. Nb3, but Rebel further increases the pressure.
>>>
>>>30...b4?
>>>
>>>Correct is 30...Bf8! followed by exchange.
>>>
>>>31. Qh5!
>>>
>>>
>>>
>>>31...Rxf3!?
>>>
>>>Desperation. Black has lost a pawn after 31...Bf8 32. Ne5! Re7 33. Nxf6! Nxf6
>>>34. Qxe8 Ncxe8 (34...Rxe8 35. Nf7 mate) 35. Bxf8.
>>>
>>>A great variation is 31...Ra7 32. Ne5! fxe5 33. Ng5! Bxg5 34. Qxg5 (Threatens
>>>Bg7+) 34...Nb5. The opening of the c-file allows the combination 35. Qg8+!
>>>(Stronger than 35. Qxe5+ Rf6) 35...Qxg8 36. Rxg8+ Kxg8 37. Rc8+ Rf8 38. Rxf8
>>>mate !
>>>
>>>32. gxf3! Bf8 33. Kh1! Re7 34. Rcg1 1-0
>>>
>>>Rebel played incredibly strong.
>>
>>
>>yes it did...



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