Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: 18. Kb1!?

Author: Uri Blass

Date: 02:23:11 01/29/03

Go up one level in this thread


On January 29, 2003 at 04:50:56, Jouni Uski wrote:

>On January 29, 2003 at 04:34:52, Uri Blass wrote:
>
>>On January 29, 2003 at 00:15:44, Amir Ban wrote:
>><snipped>
>>>17. Qc3 Rae8
>>>
>>>{Despite its appearance this is not a desperation move. It already appeared in
>>>PV's two moves earlier. Rather than lose e5, Deep Junior is quite happy to give
>>>the exchange in return for temporary initiative. Kasparov's plan of K to a1 and
>>>opening the c file is totally counter-intuitive to Junior }
>>
>>What about 17...Rab8?
>>
>>I am interested to know if more time could help Junior to find that move that
>>seems to give the best practical chances for black.
>>
>>It may be interesting to see Junior's scores for the game and after 17...Rab8.
>>
>>Uri
>
>I did yesterday analysis with quite slow PC and surprisingly more than one
>engine
>plays 18. Kb1 and white has edge. For human move is quite unnatural looking!
>
>Jouni

Thanks, you seem to be right.

Yace had the line Kb1 Nxe5 so I thought that Nxe5 is the right move and analyzed
only few moves after Nxe5.


I now tried Fritz8 after Kb1 and it seems that this move may be a good move.

Kasparov,G - Deep Junior 8
1r3rk1/pb1n1ppp/2qN4/4p1Pn/2p1P3/2Q1BN2/PP3P1P/1K1R3R b - - 0 1

Analysis by Fritz 8:

18...f6 19.Rhg1 g6 20.Kc1 Rbd8 21.Nxb7 Qxb7 22.Qxc4+
  ²  (0.62)   Depth: 5/28   00:00:00  187kN
18...f5!
  ²  (0.59)   Depth: 5/28   00:00:00  197kN
18...f5!
  ²  (0.44)   Depth: 5/28   00:00:00  204kN
18...Nf4!
  ²  (0.41)   Depth: 5/28   00:00:00  227kN
18...Nf4 19.Bxf4 exf4 20.Rhe1 Qc5 21.Nxc4
  ²  (0.28)   Depth: 5/28   00:00:00  237kN
18...Nf4--
  ²  (0.56)   Depth: 6/26   00:00:00  307kN
18...Nf4 19.Bxf4 exf4
  ²  (0.56)   Depth: 6/26   00:00:00  310kN
18...Rfd8!
  ²  (0.53)   Depth: 6/28   00:00:01  491kN
18...Rfd8 19.Rhe1 Qc7 20.Ka1 Bc6 21.Nxe5 Nxe5 22.Qxe5
  ²  (0.56)   Depth: 7/27   00:00:01  773kN
18...Rfd8 19.Rhe1 Qc7 20.Ka1 Ba6 21.Rd2 Bb7 22.Nxe5 Nxe5
  ±  (0.78)   Depth: 8/27   00:00:04  1403kN
18...Nf4!
  ±  (0.75)   Depth: 8/27   00:00:04  1546kN
18...Nf4 19.Nxe5 Nxe5 20.Bxf4 Ng6 21.Bg3 Rfd8 22.e5
  ±  (0.72)   Depth: 8/27   00:00:04  1636kN
18...f6!
  ²  (0.69)   Depth: 8/29   00:00:06  2528kN
18...f6 19.Rhg1 Qc7 20.Ka1 Ba6 21.g6
  ²  (0.66)   Depth: 8/29   00:00:07  3053kN
18...Qa4!
  ²  (0.62)   Depth: 8/29   00:00:08  3342kN
18...Qa4 19.Rc1 Nf4 20.Bxf4 exf4 21.Qxc4 Qa5 22.Rhd1 Ba6 23.Qc3 Rb4
  ±  (0.87)   Depth: 9/28   00:00:12  4936kN
18...f6!
  ±  (0.84)   Depth: 9/30   00:00:14  5508kN
18...Nf4!
  ±  (0.81)   Depth: 9/30   00:00:20  8158kN
18...Nf4 19.Nxe5 Nxe5 20.Bxf4 Ng6 21.Bg3 Rfd8 22.e5 Ba8
  ±  (0.72)   Depth: 9/30   00:00:20  8418kN
18...Nf4--
  ±  (1.00)   Depth: 10/28   00:00:27  10977kN
18...Nf4 19.Nxe5 Nxe5
  ±  (1.00)   Depth: 10/37   00:00:32  13388kN
18...Rfd8!
  ±  (0.97)   Depth: 10/37   00:00:34  13932kN
18...Rfd8!
  ±  (0.81)   Depth: 10/37   00:00:34  14186kN
18...Rfd8 19.Ka1 Qc7 20.Rhg1 Nf8 21.Qxc4 Qe7 22.Bxa7 Ra8 23.Bc5 Ng6 24.a3
  ±  (0.78)   Depth: 10/37   00:00:40  16615kN
18...Rfd8 19.Ka1 Qc7 20.Rhg1 Nf8 21.Qxc4 Qe7 22.Nf5 Qe8 23.Rxd8 Rxd8 24.Qc7 Bxe4
  ±  (0.97)   Depth: 11/31   00:01:10  29268kN
18...f6!
  ±  (0.94)   Depth: 11/31   00:01:15  31604kN
18...f6 19.Ka1 Qc7 20.Rd2 Nb6 21.Bxb6 axb6 22.gxf6 Nxf6 23.Re1 Rbd8 24.Qxe5 b5
25.Kb1
  ±  (0.87)   Depth: 11/35   00:01:34  39530kN
18...Ba6!
  ±  (0.84)   Depth: 11/35   00:01:51  46366kN
18...Qc7!
  ±  (0.81)   Depth: 11/35   00:02:12  54932kN
18...Qc7 19.Ka1 f6 20.Rd2 Nb6 21.Bxb6 axb6 22.gxf6 Nxf6 23.Re1 Rbd8 24.Qxe5 Rxd6
25.Qxd6
  ±  (0.94)   Depth: 12/34   00:02:59  74800kN
18...Ba6!
  ±  (0.91)   Depth: 12/34   00:03:04  76706kN
18...Rfe8!
  ±  (0.87)   Depth: 12/35   00:05:26  137733kN
18...Rfe8 19.Nxe8 Qxe4+ 20.Ka1 Qxf3 21.Rhe1 Rxe8 22.Rxd7 Qc6 23.Red1
  ±  (0.84)   Depth: 12/35   00:05:45  145979kN
18...Rfe8 19.Nxe8 Qxe4+ 20.Ka1 Qxf3 21.Rhe1 Rxe8 22.Rxd7 Bc6 23.Rd6 Bb5 24.Bxa7
  ±  (1.06)   Depth: 13/37   00:06:59  178218kN
18...Ba6!
  ±  (1.03)   Depth: 13/37   00:07:07  181884kN
18...Qc7!
  ±  (1.00)   Depth: 13/37   00:09:14  237290kN

(Blass, Tel-Aviv 29.01.2003)

Uri



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.