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Subject: Re: Revised ECM Test Suite (update)

Author: Vincent Lejeune

Date: 01:19:14 07/21/04

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On July 20, 2004 at 15:24:34, Vincent Lejeune wrote:

>On July 20, 2004 at 15:17:43, Vincent Lejeune wrote:
>
>>I can run shredder 8 on one or more position for the next 5 days on a centrino
>>1.7, please, let me know the more interresting/schemer positions !
>>
>>
>>On July 20, 2004 at 11:36:05, Omid David Tabibi wrote:
>>
>>>http://www.cs.biu.ac.il/~davoudo/pubs/ecmx.epd
>>>
>>>Remaining positions that are still unclear (the winning line is not clear):
>>>
>>>r3r1k1/pp3ppp/1qp5/2bbNQ2/5B2/2P5/PP3PPP/3RR1K1 w - - bm Rxd5; id "ECM.349";
>>>r3k1r1/pb1qpp1p/1pnp1n1B/2p2R2/3PP3/2P3PN/P1P3BP/R2Q3K b q - bm Nxe4; id
>>>"ECM.561";
>>>8/p5k1/2p2p2/4p1p1/1p2P3/1P4PP/1PP5/5K2 b - - bm g4; id "ECM.601";
>>>4r2k/3n1Qpp/1pRP1p2/p4P2/1p1P2P1/6rP/P3q1B1/6RK w - - bm Qe6; id "ECM.624";
>>>Isn't 1.Rc2 at least as good as Qe6?
>>>r1b2rk1/1pq2ppp/p1p1p3/2n1P3/2N2P2/3B4/PPP3PP/R2Q1RK1 w - - bm Bxh7+; id
>>>"ECM.677";
>>>2k3r1/ppq2p1p/n1Pb1p2/8/6r1/4BN1b/PPQ2PPP/R3RBK1 b - - bm Bxh2+; id "ECM.698";
>>>5rk1/5rp1/p2qb3/R2Np2Q/3bP2B/7P/P5PK/1R6 b - - bm Rf1; id "ECM.856";
>>>3r1rk1/p3q1pp/2Rb4/3P4/8/1P2Qp2/PB3PPP/3R2K1 b - - bm Bxh2+; id "ECM.858";
>>>8/2q1np1k/6p1/1PPn3p/8/P2Q3P/6P1/2R4K b - - bm Nf5; id "ECM.864";
>>>7R/1p1r4/2b2p2/2Pp1qk1/3P1bp1/3N4/2Q2PB1/6K1 w - - bm Rg8+; id "ECM.866";
>>>r6r/1pn1b1k1/2p1pq2/2Pp3p/p2P1Pp1/P2BP1P1/1P2QB2/3R2KR w - - bm Rxh5; id
>>>"ECM.867";
>
>
>I'm planning 12h on this position with the 2 best moves
>
>[d]4r2k/3n1Qpp/1pRP1p2/p4P2/1p1P2P1/6rP/P3q1B1/6RK w - -
>bm Qe6; id "ECM.624"; Isn't 1.Rc2 at least as good as Qe6?


Rc2 is quickly ahead by 2 pawns and nothing changes after 13h (484Kn/s)

Analysis by Shredder 8:

1. +- (4.79): 1.Rc2 Qe3 2.Kh2 Nb8 3.Rf1 Rxg2+ 4.Kxg2 Qe4+ 5.Kg3 Rg8 6.Rff2 Qe3+
7.Kg2 Qe4+ 8.Kg1 Qd3 9.Qe6 Nd7 10.Kh2 Nf8 11.Qe7 Qxd4 12.Rfd2 Qf4+
2. +- (2.37): 1.Qe6 Qe3 2.Qxe3 Rgxe3 3.Rgc1 h5 4.Rc7 Rd8 5.gxh5 b5 6.Kg1 Kh7
7.Bc6 Nb6 8.d7 b3



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