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Subject: Re: BS 2830 Problem #5 --> More yammering about it: Indeed

Author: Knight Hawk

Date: 18:44:17 03/17/04

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On March 17, 2004 at 19:29:45, Dann Corbit wrote:

>On March 17, 2004 at 19:28:50, Knight Hawk wrote:
>
>>On March 17, 2004 at 19:08:19, Dann Corbit wrote:
>>
>>>These are the analysis ideas from the chess programs for the Rxe6 trace:
>>>2r1r3/p3bk1p/1pnqpppB/3n4/3P2Q1/PB3N2/1P3PPP/3RR1K1 w - - pv Rxe6 Qxe6 Re1 Qf5
>>>Qxf5 gxf5 Bxd5+ Kg6 Bd2 Kg7 Bb4 b5 Rc1 Nb8 Rxc8 Rxc8 Nh4;
>>>2r1r3/p3bk1p/1pnqpppB/3n4/3P2Q1/PB3N2/1P3PPP/3RR1K1 w - - pv Rxe6 Qxe6 Re1 Qf5
>>>Qxf5 gxf5 Bxd5+ Kg6 Bf4 Kg7 Kf1 h5 Be6 Rcd8 d5 Ne5 Nxe5 fxe5 Bxe5+ Bf6 Bc7 Ra8
>>>b3 Bc3 Rd1;
>>>2r1r3/p3bk1p/1pnqpppB/3n4/3P2Q1/PB3N2/1P3PPP/3RR1K1 w - - pv Rxe6 Qxe6 Re1 f5
>>>Qg3 Qxe1+ Nxe1 Red8 Qd3 Bf6 Qa6 Ne7 Qxa7 g5 h4 gxh4 Nf3 Kg6 Bd2 Rc7 Qa6;
>>>
>>>And this is the output for Qh3:
>>>2r1r3/p3bk1p/1pnqpppB/3n4/3P2Q1/PB3N2/1P3PPP/3RR1K1 w - - pv Qh3 Rh8 Re2 Nd8 Nd2
>>>Re8 Ne4 Qd7 Nc3 Nxc3 bxc3 b5 d5 Bxa3 dxe6+ Kg8 exd7+ Kh8;
>>>2r1r3/p3bk1p/1pnqpppB/3n4/3P2Q1/PB3N2/1P3PPP/3RR1K1 w - - pv Qh3 Rh8 Bc4 Na5 Ba6
>>>Rc6 Rc1 Rxc1 Bxc1 Qd7 Bd3 Bd6 Be4 Bf8 b4 Nb3 Bb2;
>>>2r1r3/p3bk1p/1pnqpppB/3n4/3P2Q1/PB3N2/1P3PPP/3RR1K1 w - - pv Qh3 Rh8 Bc4 Qd7 Rc1
>>>Rhd8 Bb5 a5 Bg5 h5 Bd2 Rc7 Re4;
>>>
>>>By analyzing at the first point of disagreement, more information may be
>>>obtained.  I am going to analyze after:
>>>2r1r3/p3bk1p/1pnqpppB/3n4/3P2Q1/PB3N2/1P3PPP/3RR1K1 w - - pv Rxe6 Qxe6 Re1 Qf5
>>>Qxf5 gxf5 Bxd5+ Kg6;
>>>has been completed
>>>[D]2r1r3/p3b2p/1pn2pkB/3B1p2/3P4/P4N2/1P3PPP/4R1K1 w - -
>>>
>>>and also this:
>>>2r1r3/p3bk1p/1pnqpppB/3n4/3P2Q1/PB3N2/1P3PPP/3RR1K1 w - - pv Rxe6 Qxe6 Re1 f5;
>>>[D]2r1r3/p3bk1p/1pn1q1pB/3n1p2/3P2Q1/PB3N2/1P3PPP/4R1K1 w - -
>>>
>>>as well as after:
>>>2r1r3/p3bk1p/1pnqpppB/3n4/3P2Q1/PB3N2/1P3PPP/3RR1K1 w - - pv Qh3 Rh8 Bc4;
>>>[D]2r4r/p3bk1p/1pnqpppB/3n4/2BP4/P4N1Q/1P3PPP/3RR1K1 b - -
>>>and after:
>>>2r1r3/p3bk1p/1pnqpppB/3n4/3P2Q1/PB3N2/1P3PPP/3RR1K1 w - - pv Qh3 Rh8 Re2;
>>>which should give greater depth.
>>>[D]2r4r/p3bk1p/1pnqpppB/3n4/3P4/PB3N1Q/1P2RPPP/3R2K1 b - -
>>
>>Call Kasparov, and save yourself a lot of work;-)
>
>I doubt very much if he is willing to do free analysis at my beck and call.

:) Maybe he'll include it in his second book....nah...

IMO Rxe6 is sound, and wins. Qh3 is a good move but won't take you to a directly
won endgame.

Apparently computers find this position difficult to evaluate.

It appears Qh3 could also be considered as an alternate solution.



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