Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Kasparov missed win ..25. F4! Yes!

Author: Dann Corbit

Date: 17:13:43 01/28/03

Go up one level in this thread


On January 28, 2003 at 19:39:54, stuart taylor wrote:

>On January 28, 2003 at 19:20:29, Eduard Nemeth wrote:
>
>>On January 28, 2003 at 18:54:30, Ronnie Cole wrote:
>>
>>>:(
>>
>>Yes! See my Comment live game (PGN) in another Thread.
>>
>>Eduard
>
>Would 25.f4 have necesarily been a win?
>If so, what then was DJ's mistake?  KP:N?   or  Ra3? Or what?
>S.Taylor

f4 seems to lead to a 1 pawn advantage, according to Ruffian:

E:\programme\winboard\ruffian>ruffian -h 300M -T djgk.epd -t 999 -p 99
Hash size 314572800
Ruffian 1.0.1
feature done=0
Loading configuration: ruffian.cfg
Warning: EGTB_HASH_SIZE changed, default=1048576, newvalue=8388608
Logfile: Tue Jan 28 16:44:51 2003
Total hash size 300M
Initializing tablebases: /programme/winboard/nalimov
Testing djgk.epd, 999 seconds, extra ply 99
Testing: test 1   Solution: f4
  2b2rk1/Rp5p/3p1qpQ/2nP1p2/2P1p3/8/P1RN1PPP/6K1 b - -
  Depth   Time  Score    Best line
   9/23   1.43  -1.86    ... Qa1+ Nf1 Qd4 Ra3 Nd3 Ra8 Qg7 Qxg7+ Kxg7 Ra7 Kf7
                         Ne3
   9-->   1.97  -1.86    ... Qa1+ Nf1 Qd4 Ra3 Nd3 Ra8 Qg7 Qxg7+ Kxg7 Ra7 Kf7
                         Ne3
  10/23   3.31  -1.90    ... Qa1+ Nf1 Qd4 Qe3 Qxe3 Nxe3 f4 Nd1 f3 g3 Nd3 Nc3
  10/23   4.70   x.xx    ... Qd4
  10/23   8.46  -1.75    ... Qd4 Qf4 Nd3 Qe3 Qxe3 fxe3 Rf7 Rc3 b6 Rca3 Bd7
  10/23  11.01   x.xx    ... f4
  10/23  13.02     ++    ... f4
  10/23  22.35  -0.40    ... f4 Ra8 e3 Nf1 exf2+ Rxf2 Nd3 Rxc8 Rxc8 Qh3 Qf5
                         Qxf5 gxf5
  10-->  22.52  -0.40    ... f4 Ra8 e3 Nf1 exf2+ Rxf2 Nd3 Rxc8 Rxc8 Qh3 Qf5
                         Qxf5 gxf5
  11/27  30.78     ++    ... f4
  11/29  36.73   0.00    ... f4 Ra8 e3 Nf1 Qf5 Rb2 Nd3 Rc2 Nc5
  11-->  37.31   0.00    ... f4 Ra8 e3 Nf1 Qf5 Rb2 Nd3 Rc2 Nc5
  12/30  53.89   0.19    ... f4 Ra8 e3 Nf1 Qf5 Rb2 Nd3 Rc2 exf2+ Kh1 f3 g3
                         Qh3 Qxh3 Bxh3
  12-->  55.21   0.19    ... f4 Ra8 e3 Nf1 Qf5 Rb2 Nd3 Rc2 exf2+ Kh1 f3 g3
                         Qh3 Qxh3 Bxh3
  13/30   1:36   0.34    ... f4 Ra8 e3 Nf1 Qf5 Rxc8 Rxc8 Rb2 Qe5 Re2 exf2+
                         Rxf2 Nd3 Qh3 Nxf2 Qxc8+
  13-->   1:42   0.34    ... f4 Ra8 e3 Nf1 Qf5 Rxc8 Rxc8 Rb2 Qe5 Re2 exf2+
                         Rxf2 Nd3 Qh3 Nxf2 Qxc8+
  14/35   2:39     ++    ... f4
  14/35   3:40   0.76    ... f4 Nf1 e3 Nxe3 Bf5 Rc1 Qb2 Rf1 fxe3 fxe3 Qb6
                         Ra3 Qb4 Ra7 Qxc4
  14-->   3:47   0.76    ... f4 Nf1 e3 Nxe3 Bf5 Rc1 Qb2 Rf1 fxe3 fxe3 Qb6
                         Ra3 Qb4 Ra7 Qxc4
  15/38   6:13   0.83    ... f4 Nf1 e3 Ra8 Qf5 Rxc8 Rxc8 Qh3 Qxh3 gxh3 exf2+
                         Rxf2 Rf8 Rf3 Ne4 h4 Kg7 Kg2
  15-->   6:48   0.83    ... f4 Nf1 e3 Ra8 Qf5 Rxc8 Rxc8 Qh3 Qxh3 gxh3 exf2+
                         Rxf2 Rf8 Rf3 Ne4 h4 Kg7 Kg2
  16/39  11:50   0.95    ... f4 Nf1 e3 Ra8 Qf5 Rxc8 Rxc8 Qh3 Qxh3 gxh3 exf2+
                         Rxf2 Rf8 Rf3 Nd7 Rb3 b6 Rf3 Ne5
  16-->  13:16   0.95    ... f4 Nf1 e3 Ra8 Qf5 Rxc8 Rxc8 Qh3 Qxh3 gxh3 exf2+
                         Rxf2 Rf8 Rf3 Nd7 Rb3 b6 Rf3 Ne5
  17...  13:16   1/31    f4

Time: 16:39, cpu 88.86%, nodes 512952550, nps 513440
Hash: 128M, used 99%, hits 27%
EGTB: probs 0, hits 0

Best move: f4 (0.95)  Solved (1/1)

Summery: 1/1



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.