Author: stuart taylor
Date: 16:49:08 07/06/02
Go up one level in this thread
On July 06, 2002 at 16:39:22, George Sobala wrote: >On July 06, 2002 at 15:22:41, John Merlino wrote: > >>On July 06, 2002 at 14:48:52, George Sobala wrote: >> >>>Topalov v Lutz >>> >>>How long does it take for your engine to find Nxf6? >>> >>>Live on the ICC, I happened to have Gambit Tiger analyzing on aggressive mode on >>>a humble K6-2 450Mhz and it found the winning line *immediately*, whereas other >>>engines I tried subsequently such as Fritz7 and Hiarcs8 were struggling even >>>after several minutes on a Duron 800Mhz. >>> >>>[D]1r4k1/1q3pp1/r3b2p/p2N4/3R4/QP3P2/2P3PP/1K1R4 w - - >> >>I assume you mean Nf6+ rather than Nxf6? If so, then Chessmaster 9000 sees it in >>1:37 on a (relatively slow) PIII-600: >> >>Time Depth Score Positions Moves >>0:00 1/3 1.58 1515 1.Qc5 Bxd5 2.Rxd5 Re8 >>0:00 1/4 1.81 6765 1.Qc5 Qb5 2.Rc4 Qxc5 3.Rxc5 Bxd5 >> 4.Rdxd5 >>0:00 1/5 1.67 33581 1.Qc5 Kh8 2.Nc7 Rc6 3.Rd8+ Rxd8 >> 4.Rxd8+ Kh7 >>0:01 1/6 1.53 92375 1.Qc5 Kh8 2.Qc3 Rc8 3.Rc4 Rac6 >> 4.Rxc6 Qxc6 5.Qxc6 Rxc6 >>0:03 1/7 1.50 222972 1.Qc5 Kh8 2.Qc3 Bf5 3.Kb2 Re8 4.Re1 >>0:09 1/8 1.42 694778 1.Qc5 Kh8 2.Qc3 Rc6 3.Qd3 Rbc8 >> 4.Nf4 Qb8 5.c4 >>0:37 1/9 1.49 2926516 1.Qc5 Kh7 2.Qc3 Rc6 3.Qd3+ g6 4.g4 >> Rbc8 5.Rd2 Bxd5 6.Rxd5 >>1:19 2/10 1.39 6403907 1.Qc5 Kh7 2.Qc3 Rc6 3.Qd3+ g6 4.g4 >> Rbc8 5.Rd2 f5 6.Re2 Bxd5 7.Rxd5 >>1:37 2/10 3.06 8039436 1.Nf6+ gxf6 2.Rd8+ Rxd8 3.Rxd8+ >> Kh7 4.Qf8 Kg6 5.Qg8+ Kh5 6.Qg7 >> f5 7.Rd4 Bc8 8.g3 Qe7 9.Rh4+ Qxh4 >> 10.Qxf7+ Rg6 11.gxh4 >>2:28 3/11 3.12 13185138 1.Nf6+ gxf6 2.Rd8+ Rxd8 3.Rxd8+ >> Kh7 4.Qf8 Kg6 5.Qg8+ Kh5 6.Qg7 >> f5 7.Rd4 Bc8 8.g3 Qe7 9.Rh4+ Qxh4 >> 10.Qxf7+ Rg6 11.gxh4 Be6 12.Qc7 >> >>jm > > >Yes - Nf6+ (sorry, misprint - over-enthusiasm triumphed over typing) But Nf6 was written, which looks ok to me. No? (Not no+) S.Taylor > >For the record, Gambit Tiger (aggressive) got it in 0.4 secs on a Duron 800! It >was fun watching it live at the ICC: for many, it was not an easy line to >visualise even with computer prompting. I was puzzled that (on a slow processor) >I seemed to be the first to point it out, but obviously Gambit/aggressive spots >this particular sac much sooner than other engines.
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.