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Subject: Re: Can your program find the correct move for black ? ( Good move by Ed

Author: Terry Ripple

Date: 03:54:19 04/20/02

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On April 20, 2002 at 03:54:46, Ed Schröder wrote:

>On April 19, 2002 at 17:57:46, Terry Ripple wrote:
>
>>This position is taken from an actual game: "Tseshkovsky vs Prokopchuk" (1995)
>>
>>[D]rn1qkb1r/ppp1pppp/8/3n4/2B3b1/2P2N2/PP1P1PPP/RNBQK2R b KQkq - 0 1
>>
>>1)e4 d5 2)exd5 Nf6 3)Bb5+ Bd7 4)Bc4 Bg4 5)Nf3 Nxd5 6)c3!? >Black has to be -
>>extremely careful with his next move! 6)...c6 Black's best! Other moves fall
>>foul to White's cunning 6)c3:
>>
>>a)6)...Nb6? and 6...Nf6? both run into 7.Bxf7+ Kxf7 8.Ne5+.
>>
>>b)6)...e6? 7.Qa4+ Qd7 [or 7...c6? 8.Bxd5 and 9.Qxg4] 8.Bb5 c6 9.Bxc6 Nxc6 -
>>  10.Qxg4 and White has an extra pawn. (Note: Rebel Tiger 14 chooses e6?)
>>
>>( Does Tiger believe that it has enough compensation for the pawn?)
>
>
>>c)...Nxc6?! 7.Qb3 Bxf3 [7...Na5 8.Qa4+ c6 9.Bxd5 wins!] 8.Qxb7! Nb6 [8...Na5?-
>>  9.Bb5+ c6 10.Bxc6+ Nxc6 11.Qxc6+ Qd7 12.Qxa8+] 9.gxf3 Ne5 10.Bb5+ Ned7 11.d4,
>>    again with a healthy pawn advantage.
>
>What about 6..Nc6 7.Qb3 Bxf3 8.Qxb7 Ndb4!
>
>Is 8.Qxb7 really that good?

Hello Ed,
    It looks like 8.Qxb7 is refuted by 8...Ndb4! "Grandmaster John Emms"
--apparently missed this interesting move! I can't find anything wrong with it,
and in fact the black pieces are now looking better!

Thanks for your input!
Best Regards,
           Terry
>
>00:00:05.1	1,61	11	2139251	Ndb4 cxb4 Rb8 Qa6 Bxg2 Rg1 Nxb4 Bb5+
>00:00:08.6	1,76	12	4495124	Ndb4 cxb4 Rb8 Qa6 Bxg2 Rg1 Nxb4 Qa4+
>00:00:15.7	1,67	13	9604503	Ndb4 cxb4 Rb8 Qa6 Bxg2 Rg1 Nxb4 Qa4+
>00:00:32.1	1,74	14	21309858	Ndb4 cxb4 Rb8 Qa6 Bxg2 Rg1 Nxb4 Qa4+
>00:01:08.6	1,85	15	47353173	Ndb4 cxb4 Rb8 Qa6 Bxg2 Rg1 Nxb4 Qxa7
>00:02:47.0	1,84	16	121282451	Ndb4 cxb4 Rb8 Qa6 Bxg2
>
>As in the game Rebel will play 6..c6 (after 7 minutes), before that it had
>6..Nc6 all the time.
>
>Ed
>
>
>
>
>>d)6)...g6?! 7.Qb3 Bxf3 8.gxf3 and the b-pawn drops!
>>
>>From the actual game after White's move 6)c3 follows 6...c6 7.d4 e6 8.Nbd2 Nd7
>>  9.h3 Bf5 10.0-0 Be7 11.Re1 0-0 12.Ne4 Qc7 13.Bd3 b5 14.Bd2 Bg6 15.Qb1 Rab8
>> 16.Neg5 Bxd3 17.Qxd3 Bxg5 18.Nxg5 N7f6 19.a4 a6 [Not 19...bxa4?! 20.c4 Ne7 -
>> 21.Bc3, when the a4-pawn would soon drop!] 20.Ne4 Nxe4 21.Rxe4 Rbd8 -
>> 22.Bg5 Rd7 23.axb5 axb5 24.Qf3 Ne7 25.Bf4 Qb7 26.h4! Rd5 27.h5 Rf5 28.Qg4 g6
>> 29.hxg6 hxg6 30.Be5?( best Bd6!)30...Rh5! 31.Qf3? (31.Bf6,playing on the weak-
>>   dark squares, would have been more effective!) 31...f5! 32.Ree1 Nd5 --
>> 33.Bd6 Re8 34.Qg3 Qh7 35.f3 g5 36.Be5 f4 37.Bxf4 Nxf4 38.Re5 Rh1+ 39.Kf2 Qc2+
>>   and Black wins!
>>
>>
>> Best regards,
>> Terry



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