Author: Howard Exner
Date: 16:11:21 11/03/99
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On November 03, 1999 at 16:35:22, Dann Corbit wrote: >On November 03, 1999 at 15:53:29, Howard Exner wrote: > >>On November 03, 1999 at 13:07:48, Dann Corbit wrote: >> >>>Here is analysis at fairly long time control. I think most of the suggested >>>moves are actually bugs in the epd test suite. >> >>Just one of them is wrong. That's the one that suggests Rxh2. The rest are fine, >>just difficult for computers. Cross reference your analysis with the one I >>posted or just enter in the moves from my post and then see if your program >>agrees or not. Maybe you'll find something that was missed by the ECM98 project. >Is this the correct projection from your analysis?: > >r4k1r/pp2pp2/3p1b2/q2PnQpp/3N4/1BP3P1/PP3PP1/3RR1K1 w - - bm Rxe5; id >"ECM.1291"; c0 "Unknown -- possibly suspect"; 1. Rxe5 dxe5 2. d6 Qd8 3. dxe7+ Qxe7 4. Nf3 This one I'm not as sure as the others. Maybe there is some better defense for black? >2b1rr1k/1p5p/1Ppp2q1/p3bN2/2P1n3/5R2/PBQ3BP/3R2K1 w - - bm Nxd6;id "ECM.1061"; >pv Nxd6 Rxf3 Nxe8 Bxb2 Qxb2+ Kg8 Rd8 Rf8 Rxc8 Rxe8 Rxe8+ Qxe8 Qe2 Qd8 Bxe4; >r4rk1/ppp3b1/3p1qp1/3Pp3/2P1Bn2/4BP2/PP1Q4/2K3RR w - - bm Rxg6; id "ECM.1149"; >pv Rxg6 Nxg6 Bg5 Qf7 Qh2 Rfe8 Qh7+ Kf8 Bxg6 Qg8 Qh3 Re7 Bxe7+ Kxe7 Qh4+; >rq3r1k/p2n1p2/1pbb1np1/2p2BB1/8/2N2N2/PP3QPP/3R1RK1 w - - bm Rxd6; id >"ECM.1169"; pv Rxd6 Qxd6 Rd1 Qb8 Bxd7 Nxd7 Qh4+ Kg8 Rxd7 Bxf3 Nd5 Qe5 Nf6+; >1r3rk1/6p1/p1pb1qPp/3p4/4nPR1/2N4Q/PPP4P/2K1BR2 b - - bm Rxb2; id "ECM.1229"; pv >Rxb2 Kxb2 Ba3+ Kxa3 Rb8; >rnb2rk1/pp2bppp/2p5/q7/4NN2/4B1QP/PPP3P1/2KR3R w - - bm Rd5; id "ECM.1259"; pv >Rd5 cxd5 Nh5 Bg4 Qxg4 g6 Nhf6+ Bxf6 Nxf6+ Kh8 Qh4; >r1b5/p2k1r1p/3P2pP/1ppR4/2P2p2/2P5/P1B4P/4R1K1 w - - bm Bxg6; id "ECM.1545"; pv >Bxg6 hxg6 Re7+ Rxe7 dxe7+ Kxe7 Rd8; >r4rk1/ppq3pp/2p1Pn2/4p1Q1/8/2N5/PP4PP/2KR1R2 w - - bm Rxf6; id "ECM.1574"; pv >Rxf6 Rxf6 Rd7 Rg6 Qe7 Qc8 Qf7+ Kh8 e7 Qg8 Qxg8+ Rxg8 Ne4; >r2q3r/2pkb1p1/p2p1n2/4p1p1/Pp2P1P1/1QP5/1P1P2PP/RNB2RK1 b - - bm Rxh2; id >"ECM.1621"; The book line showed some faulty lines here for white. I recall that Amir Ban showed that Rxh2 leads nowhere and the participants of the ECM98 project concurred. There is lengthy analysis of these and many other positions in past CCC posts( mostly titled ECM98 Errata). >2rq1rk1/pp1bnpbp/4p1p1/3pP1N1/3P2Q1/2PB4/P4PPP/R1B1R1K1 w - - bm Nxh7; id >"ECM.1622"; pv Nxh7 Kxh7 Qh4+ Kg8 Bg5 Re8 Re3 Rxc3 Rh3 Kf8 Qh7; The above positions looks accurate.
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