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Subject: Re: anti-computer position / mate in 10

Author: Terry Presgrove

Date: 07:49:13 05/30/99

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On May 29, 1999 at 23:58:47, Mark Young wrote:

>On May 29, 1999 at 23:34:58, Terry Presgrove wrote:
>
>>>>>>>>Recently I was playing Rebel10c a 30 0 game that went as follows.
>>>>>>>>
>>>>>>>>[Event "?"]
>>>>>>>>[Site "?"]
>>>>>>>>[Date "?"]
>>>>>>>>[Round "-"]
>>>>>>>>[White "?"]
>>>>>>>>[Black "?"]
>>>>>>>>[Result "*"]
>>>>>>>>
>>>>>>>>1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nf3 Be7
>>      8.Be3 O-O 9. Qd2 Ng4 10. Bg5 Bxg5 11. Nxg5 h6 12. h4 hxg5 13. hxg5 Qb6 14.
>>>>>>>>O-O-O Nxf2 15. Nd5 Qd8 16. Qe3 Nxh1 17. Rxh1 Nc6 18. Qg3 Nd4 19. Qh4 Nxe2+
>>>>>>>>20. Kb1 f5 21. Qh8+ Kf7 22. g6+ Ke6 23. Qxg7 fxe4
>>>>>>>>*
>>snip...
>> Regardless of what it is, black is hopelessly lost after the move
>>>>>>>18. Qg3.
>>>>>>> My analysis seems to indicate blacks last chance to save the game
>>      is on move 15.... Qb6-d8?? rather Qd4!! if I recall correctly after
>>      leaving Rebel10b on over night the analysis was slight advantage for
>>      black after 15.... Qd4.I tried to duplicate tournament play by
>>      giving Rebel10b 5 minutes per move from 12. on and Rebel made same moves
>>      until 17. when the Nc6 score showed (-) at just over 4 minutes
>>      and found the mate in 10 at 6:19. White has many winning lines when
>>      black fails to swap the Queens.
>
>
>When did rebel come out of book, Hiarcs7 did not like the line played at all. It
>does not like the move 7 .. Be7(book??). Hiarcs7 book had 7. .. h6. After the
>move Be7 Hiarcs7 felt it was behind by almost a pawn.
>
>Hiarcs7 refuse to allow the moves leading to 11. Nxg5, but after forcing this
>line it did take the Knight after 12. h4. I am not sure taking the Knight in
>itself is losing, but its not easy to find the correct defense. I have a feeling
>only that black is better, but I only found losing or unclear lines for black in
>the time I took looking at the position.

 Rebel came out of book at move 8 showing slight advandage for white .17 I
believe. While it is true that black can survive with equality(after 12. hxg5)
almost all lines(I examined) give white the advantage except 15.......Qd4 giving
black slight advantage.

>
>> snip....
>>>>this is classic anti-computer tactics after 12. ....hxg5 the opening of the KR
>>>>file for the trojan knight. I should have been more clear in the distinction
>>>>between the anti-computer part of the game and the mate in 10 :-)
>>>
>>>Yes this I agree with it can be a problem for compters, this is the position
>>>that should be of interest. I will have to look at this position and the moves
>>>before and just after.
>>>



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