Author: Miguel A. Ballicora
Date: 11:46:40 02/04/06
Go up one level in this thread
On February 04, 2006 at 08:53:37, Michael Neish wrote: > >[D]r3rqk1/3n1pbp/b2p2p1/p1pP4/1p2PP1N/6nP/PPQB3N/R3RBK1 w - - 0 1 > >My (weak) program, Toga II 1.1 and Gambit Fruit 4bx all give Bxa6 right away, >followed by some fairly normal looking moves, and stick to it up until I stop >the search a couple of minutes later, with a minus score. > >It hardly seems like a "winning Chess combination", so I'm wondering if there's >a real sparkler of a move in the position that none of the above engines is >seeing, or if indeed this is the solution (and if so what's the point?). A >quick look at the position sort of suggests to me that there might be a trapped >Queen motif in there with the White Knight(s). > >Failing that, is the FEN wrong? > >Also, wouldn't someone mind letting me know where I could find a list of >solutions to all 1,001 positions? > >Thanks. > >Regards, > >Mike. Do not bother too much with this set. They are not very good for testing. After working for a while, I concluded that only 30 were good enough. I spent quite a bit of time debugging this. Moves here were clearly the best with a clear win. Some are easy and some are a bit challenging, but should not be a problem for current top engines with good hardware. Miguel r1q3rk/1ppbb1pp/4Np2/p4P2/P3P3/2N2R2/1PP1Q1PP/3R2K1 w - - bm Rh3; id "WCSAC.0224"; b4rk1/2Rn1pp1/p3qb1p/1p1ppN1N/6P1/PP2B2P/1P1Q4/6K1 w - - bm Rxd7; id "WCSAC.0518"; b2qr1k1/5ppp/pn6/1p1n1N2/3PR3/P2B4/1B3PPP/2Q3K1 w - - bm Qg5; id "WCSAC.0733"; r4rk1/5p2/4p1p1/1pqpP1NP/1pn2P2/7Q/PPP4P/1K1RR3 b - - bm Rxa2; id "WCSAC.0844"; r1b1r1k1/1p1n1p1p/2ppnqp1/8/p1P1P3/5P2/PbNQNBPP/1R2RBK1 w - - bm Rxb2; id "WCSAC.0850"; 3rr1k1/pp3ppp/6q1/2b2b2/5P2/3P1Q1P/PPPB2P1/R2K2NR b - - bm Bxd3; id "WCSAC.0903"; 2r2r2/3qbpkp/p3n1p1/2ppP3/6Q1/1P1B3R/PBP3PP/5R1K w - - bm Rxh7+; id "WCSAC.0914"; 1n1r1rn1/1p1qb1kp/p2p1pp1/2pPp1P1/4P2N/2P3P1/PPB2PK1/R1BQ3R w - - bm Nf5+; id "WCSAC.0933"; 1q2kb1r/1r1n1ppp/2Qpp3/8/N7/8/1PP2PPP/R1BR2K1 w - - bm Nc5; id "WCSAC.0055"; rrq1k3/2p2p2/3pb1p1/3N2Pp/p1PpPR2/P2P3P/1P6/K2Q1R2 w q - bm Rxf7; id "WCSAC.0145"; r1q2rk1/pbpnbppp/1p6/4p3/2P5/1PQ2NP1/PB2PPBP/R2R2K1 w - - bm Rxd7; id "WCSAC.0325"; 2qrr1n1/3b1kp1/2pBpn1p/1p2PP2/p2P4/1BP5/P3Q1PP/4RRK1 w - - bm Qh5+; id "WCSAC.0398"; 4r2k/p2qr1pp/1pp2p2/2p1nP1N/4R3/1P1P2RP/1PP2QP1/7K w - - bm Rxg7; id "WCSAC.0442"; r1b1r1k1/pp3p1p/1q2p1pQ/2b1P1B1/8/P2B3P/1P3PP1/2R1R1K1 w - - bm Rxc5; id "WCSAC.0506"; r4rk1/ppp3p1/2bpq3/5pPR/3Qn3/5N2/PPP2PP1/2K4R w - - bm Ne5; id "WCSAC.0568"; 4rrk1/ppp2p1p/3q1B2/2bpp3/R7/1PPb1Q2/1P1N1PPP/4R1K1 w - - bm Ne4; id "WCSAC.0589"; r1b2r2/3pNpkp/3pn1p1/2pN3P/2PnP3/q3QP2/4BKP1/1R5R w - - bm Qh6+; id "WCSAC.0738"; 5rk1/pb3pp1/5n1p/1p2n3/1P1qp3/2N5/P2PQPPP/R1B2RK1 b - - bm Nf3+; id "WCSAC.0818"; 2r1n1k1/2q1prbp/p2p2p1/1p1P2Q1/3B2P1/3B1P2/PPP5/2KR3R w - - bm Rxh7; id "WCSAC.0942"; r4rk1/pbq1bp2/1p2p1p1/6Np/2P3n1/2B4Q/PPB2PPP/3R1RK1 w - - bm Rd7; id "WCSAC.0967"; 6k1/2p3bp/p1p3p1/3pnr2/7r/B4PqP/PP1NQRP1/3R2K1 b - - bm Rxh3; id "WCSAC.0982"; r1b1qrk1/pp1p1ppp/8/n3p1BQ/2B1P3/8/P1P2PPP/3R1RK1 w - - bm Bf6; id "WCSAC.0936"; r4rk1/ppqbppb1/2np2p1/2p5/2PP3N/2PQB1P1/P3P1BP/R4RK1 w - - bm Nxg6; id "WCSAC.0945"; rq4k1/pp1nrppp/4bn2/6R1/3QP3/P4PN1/4B1PP/2B2RK1 w - - bm Rxg7+; id "WCSAC.0972"; 1k1r2r1/p1p3q1/2p2p2/3pn3/1P1b2bB/1QN5/P4PPP/1R2RBK1 b - - bm Nf3+; id "WCSAC.0996"; r2q1rk1/ppp2ppp/3b2n1/1N1P4/2BBP3/P4pP1/1PQ2PbP/R3R1K1 b - - bm Nf4; id "WCSAC.1000"; r2r2k1/1b2bp1p/p4npQ/1p1Pp1N1/Pnq1P3/R5N1/5PPP/1BBR2K1 w - - bm Nh5; id "WCSAC.0450"; k1q1bbrr/1p3pp1/p7/5n1n/PP2N2p/1NP5/1BB1Q1PP/2R2R1K b - - bm Bb5; id "WCSAC.0582"; 2r3k1/pr2qp1p/n3p1p1/B1n1N3/5P2/P3P3/4Q1PP/2RR2K1 w - - bm Qxa6; id "WCSAC.0728"; rn1qr1k1/pbp2pb1/1p4p1/3p4/3P4/2NBPN2/PPQ2PP1/R3K2R w KQ - bm Bxg6; id "WCSAC.0965";
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