Author: Mogens Larsen
Date: 14:44:27 09/22/01
Go up one level in this thread
On September 22, 2001 at 08:31:14, Michel Langeveld wrote: >On September 22, 2001 at 08:21:28, Michel Langeveld wrote: > >After I reread some posts I see that ECM.1259 is good answered by Crafty. So >this Crafty move is ok. Then Crafty can't find the following 6 positions: > >1) r1bq1rk1/pp2bp1p/2p2np1/3p2B1/3P4/2NQ2N1/PPP2PPP/4RRK1 w - - >2) 2r1r1k1/pp1nbpp1/4pn1p/q3NN1P/P1pP1B2/2P5/1PQ2PP1/R3R1K1 w - - >3) 2r2rk1/p3p1bp/3qP1p1/1Q1p4/P4P2/3R4/1P4PP/2B2RK1 b - - >4) r1b2r1k/ppppq1pp/2n1n3/6N1/2B2P2/4B3/PPP3PP/R2Q1RK1 w - - >5) r2q3r/2pkb1p1/p2p1n2/4p1p1/Pp2P1P1/1QP5/1P1P2PP/RNB2RK1 b - - >6) 2rq1rk1/pp1bnpbp/4p1p1/3pP1N1/3P2Q1/2PB4/P4PPP/R1B1R1K1 w - - > >It's maybe a good idea to analyze these positions with a few people for a long >time. I tried with Gandalf on modest hardware (P3-866MHz) for 15 minutes per position. The result was: r1bq1rk1/pp2bp1p/2p2np1/3p2B1/3P4/2NQ2N1/PPP2PPP/4RRK1 w - - ce 57;pv f4 Bd6 f5 Bd7 Nce2 Bb4 c3 Bd6 a3 Kh8 Bxf6+ Qxf6 fxg6 Qxg6 ; 2r1r1k1/pp1nbpp1/4pn1p/q3NN1P/P1pP1B2/2P5/1PQ2PP1/R3R1K1 w - - ce 76;pv Nxh6+ gxh6 Nxf7 Qxh5 Nxh6+ Kg7 Re3 Rh8 Rxe6 Bd8 Re3 Rxh6 Rh3 Qxh3 gxh3 Rxh3 Qf5 ; 2r2rk1/p3p1bp/3qP1p1/1Q1p4/P4P2/3R4/1P4PP/2B2RK1 b - - ce 0;pv Rxc1 Rxc1 Qxf4 Qc5 Bd4+ Qxd4 Qxc1+ Rd1 Qc2 Rd2 Qc1+ Rd1 ; r1b2r1k/ppppq1pp/2n1n3/6N1/2B2P2/4B3/PPP3PP/R2Q1RK1 w - - ce 108;pv Nxh7 ; r2q3r/2pkb1p1/p2p1n2/4p1p1/Pp2P1P1/1QP5/1P1P2PP/RNB2RK1 b - - ce 27;pv Nxg4 h3 Nf6 d4 exd4 cxd4 Qg8 Qxg8 Raxg8 Nd2 c5 e5 dxe5 dxe5 ; 2rq1rk1/pp1bnpbp/4p1p1/3pP1N1/3P2Q1/2PB4/P4PPP/R1B1R1K1 w - - ce 64;pv Bd2 h6 Nf3 Nf5 Qh3 b5 g4 Ne7 Bxh6 Rxc3 Bxg7 Kxg7 Ng5 Rh8 ; I haven't tried to find the position IDs to see what the supposed solutions were. Regards, Mogens
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