Author: Dann Corbit
Date: 09:51:37 02/11/02
Go up one level in this thread
On February 09, 2002 at 19:06:18, Ed Schröder wrote: >I have a list left of 5 difficult postions for Rebel, of which I think these >should be solved much faster. > >[d]k2N2K1/8/8/8/5R2/3n4/3p4/8 w - - bm Rf7 (Troitzky); > >RC4: not found after 5:00 (zugzwang?) Maybe King safety. > >[d]2n5/8/Pp5n/5N2/8/5k2/3P4/7K w - - bm d4 (Troitzky); > >RC4: not found after 5:00 (zugzwang?) Overworked piece (the knight can only block one pawn at a time) > >[d]1k4r1/3r1p1q/1p2pQpP/pPp1P1B1/P1Pp2P1/3P1R2/2n1KR2/8 w - - bm Qxf7; > >RC4: not found after 5:00 This one seems obvious. Not sure why programs have a problem with it. > >[d]8/7p/p2p4/P7/1p2k1P1/1P2p2r/2P1R1KP/8 b - - bm Rxh2+; > >RC4: not found after 5:00 Rf3 has a winning eval for chess tiger. Probably that's why alternatives don't get investigated. This one looks obvious to a human > >[d]2rr2k1/1pqbbppp/p3p3/4p3/2P5/2N1P1P1/PP2QPBP/2RR2K1 w - - bm c5; id Anand; > >RC4: 02:17 This one looks like a tough problem. I don't get it, but maybe one of the chess whiz guys around here know why it's best. >Version: Rebel Century 4 (WB), Athlon 1400, 60 Mb hash. > >I am looking forward to the analysis of other engines. While I know you (obviously) have a copy of this engine, I ran them under Chess Tiger: k2N2K1/8/8/8/5R2/3n4/3p4/8 w - - ce -548; acd 17; acs 600; pv Rf1 Ne1 Rf6 d1Q Kg7 Nd3 Rd6 Qf3 Nc6 Nc5 Ne7 Kb7 Rf6 Qh5 Rf5 Qd1 Kf6;|Rf4f1 2n5/8/Pp5n/5N2/8/5k2/3P4/7K w - - ce 0; acd 19; acs 600; pv Nxh6 b5 Nf5 Na7 Kg1 Ke4 Nd6+ Kd4 Nxb5+ Nxb5 a7 Nxa7 Kf2 Nc6 Ke2 Kc4 d3+ Kb3 Ke3;|Nf5h6 1k4r1/3r1p1q/1p2pQpP/pPp1P1B1/P1Pp2P1/3P1R2/2n1KR2/8 w - - ce 332; acd 17; acs 210; pv Qxf7 Rxf7 Rxf7 Qh8 h7 Qxe5+ Kf1 Qe1+ Kg2 Re8 Rf8 Ne3+ Bxe3 Qxf2+ Bxf2 Rxf8 Bg3+;|!210 8/7p/p2p4/P7/1p2k1P1/1P2p2r/2P1R1KP/8 b - - ce 472; acd 17; acs 600; pv Rf3 h4 d5 h5 Rf4 Kg3 d4 g5 Rf5;|Rh3f3 2rr2k1/1pqbbppp/p3p3/4p3/2P5/2N1P1P1/PP2QPBP/2RR2K1 w - - ce -52; acd 15; acs 600; pv b3 Bb4 Qb2 Bc6 a3 Bxg2 Kxg2 Qc6+ f3 Bc5 e4 b5 Rxd8+ Rxd8 cxb5 axb5 Ne2 f6 Nc3;|b3
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.