Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Too hard for my engine, how about yours?

Author: Richard Pijl

Date: 07:31:36 11/04/02

Go up one level in this thread


On November 04, 2002 at 07:34:29, Sune Fischer wrote:

>Going through the november issue of "Skakbladet", the chess magasin here in
>Denmark, I found a few positions with some very deep moves, much too deep for
>frenzee.
>
>Granted some of the positions are won even with the second best move, but for
>the sake of beauty find the best move! :)
>
[D]r1r3k1/1pq1bppp/3pbn2/p3p3/P3P1PP/nNN2P2/KPP2Q2/2BR1B1R b - - 0 1 bm b5;
>Motylev-Gelfand, Russia-World 2002

Baron 0.36 (don't have a newer version available here) first selects it after 4
seconds, rejects it for Na4 after 14 seconds and finds it again in 49 seconds on
a Mobile Pentium II 500.

PV at depth 9 (after 49 seconds):
1..b5 2.g5 Nd7 3.Bb5 Nxb5 4.Nxb5 Qc2 (score +0.51)

[D]3r4/ppp4p/1bp1k3/4pp2/8/BPP5/P2NKprP/R4R2 b - - 0 1 bm Rxd2; Gufeld-Kavalek,
OL 1962 (Kavalek's best game ever)

Not found within 5 minutes on the same hardware as above. Baron likes 1..e4 very
much though, assigning a 2.84 score to it on 12 ply deep.

[D]2bq3k/2p4p/p1np4/7P/2BPPQp1/2p2P2/r7/2KR2R1 b - - 0 1 bm Ra3; Bagirov-Gufeld
>1973, (Gufeld: maybe my best move ever)

Found in a second with a massive fail-high on depth 6 ply.

[D]2bq3k/2p4p/p2p4/7P/1nBPPQP1/r1p5/8/1K1R2R1 b - - 0 1 bm Be6, am c2;
>Bagirov-Gufeld 1973

Baron likes c2 very much in the beginning, but gets fail lows about every ply
from the 9th ply onwards. Finally Be6 is selected after 25 minutes:

1..Be6 2.Qc1 c2 3.Kb2 cxd1=Q 4.Qxd1 (score +1.68)

Richard.



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.