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Subject: Re: Why did Karpov resigned in this position?

Author: chandler yergin

Date: 09:17:56 04/23/05

Go up one level in this thread


On April 22, 2005 at 09:29:13, Andrey Popov wrote:

>This is the last position of the last game of Kasparov-Karpov match.
>If Karpov (Black) reaches a draw, he wins the match.
>Of course, White has a huge advantage.
>However, I do not see any way to win.


Neither does Shredder..

New game,
[D]5n1k/5Q2/4p1p1/2q1P2p/7P/6P1/5PK1/3B4 b - - 0 1

Analysis by Shredder 8:

1...Qxe5 2.Qxf8+ Kh7
  +-  (3.44)   Depth: 1/3   00:00:06
1...Qd5+ 2.f3 Qxe5 3.Qxf8+ Kh7
  +-  (1.56)   Depth: 1/5   00:00:06
1...Qd5+ 2.f3 Qxe5 3.Qxf8+ Kh7
  +-  (1.56)   Depth: 1/5   00:00:06
1...Qd5+ 2.f3 Qxe5 3.Qxf8+ Kh7
  +-  (1.56)   Depth: 1/5   00:00:06
1...Qd5+ 2.f3 Qxe5 3.Qxf8+ Kh7
  +-  (1.56)   Depth: 1/5   00:00:06
1...Qd5+ 2.f3 Qxe5 3.Qxf8+ Kh7
  +-  (1.56)   Depth: 1/5   00:00:06
1...Qd5+ 2.f3 Qxe5 3.Qxf8+ Kh7
  +-  (1.56)   Depth: 1/5   00:00:06
1...Qd5+ 2.Bf3 Qc5
  +-  (1.72)   Depth: 2/5   00:00:06
1...Qd5+ 2.Bf3 Qc5 3.Bb7
  +-  (2.00)   Depth: 3/7   00:00:07
1...Qd5+ 2.f3 Qxd1 3.Qh7+ Nxh7
  +-  (2.00)   Depth: 3/7   00:00:07
1...Qd5+ 2.Bf3 Qd8 3.Be4 Qb8
  +-  (2.28)   Depth: 4/11   00:00:08
1...Qd5+ 2.Kh3 Qxd1 3.Qh7+ Nxh7
  +-  (2.28)   Depth: 4/11   00:00:09
1...Qa3 2.f3 Qa2+ 3.Kh1 Qa7 4.Qxa7
  +-  (2.27)   Depth: 4/11   00:00:10
1...Qa3 2.Bf3 Qb4 3.Bc6
  +-  (2.26)   Depth: 4/11   00:00:10
1...Qa3 2.f4 Qc5 3.Qf6+ Kg8 4.Be2
  +-  (2.22)   Depth: 5/10   00:00:12
1...Qa3 2.Bf3 Qb4 3.Bc6 Qa3 4.f3
  +-  (2.35)   Depth: 6/12   00:00:17
1...Qa3 2.Bf3 Qb4 3.Bc6 Qa3 4.Qf6+ Kg8 5.f4
  +-  (2.25)   Depth: 7/19   00:00:25  21kN
1...Qa3 2.Bf3 Qb4 3.Kh3 Qg4+ 4.Bxg4 Nd7 5.Qxd7
  +-  (2.50)   Depth: 8/13   00:00:29  29kN
1...Qa3 2.Bf3 Qb4 3.Kh3 Qa3 4.Be4 Qc5 5.Qg7+ Kxg7
  +-  (2.50)   Depth: 8/14   00:00:32  35kN
1...Qa3 2.Bf3 Qb4 3.Bc6 Qc5 4.Be4 Qd5 5.Bxd5 exd5
  +-  (2.50)   Depth: 9/16   00:00:48  69kN
1...Qa3 2.Bc2 Qb4 3.Bxg6 Nxg6 4.Qxg6 Qb7+ 5.f3 Qb2+ 6.Kh3 Qxe5 7.Qf6+ Qxf6
  +-  (2.51)   Depth: 10/23   00:01:07  123kN
1...Qa3 2.Bf3 Qc5 3.Bxh5 gxh5 4.Qxh5+ Kg8 5.Qg4+ Kh7 6.Qe4+ Kh6 7.Qh7+ Kxh7
  +-  (2.53)   Depth: 11/21   00:01:18  241kN
1...Qa3 2.Bf3 Qb4 3.Bc6 Qb8 4.Kh3 Qb4 5.f4 Qc5 6.Be4 Qc8 7.Bxg6 Nxg6 8.Qxg6
  +-  (2.76)   Depth: 12/23   00:01:20  402kN, tb=1
1...Qa3 2.Bf3 Qb4 3.Bb7 Nh7 4.f4 Qa3 5.Be4 Nf8 6.Bxg6 Qa8+ 7.Kh2 Qa3
  +-  (2.80)   Depth: 13/30   00:01:22  762kN, tb=2
1...Qa3 2.Bf3 Qb4 3.Kh3 Qb8 4.Bb7 Nh7 5.Be4 Nf8 6.f3 Qa8 7.Bxa8 Nh7
  +-  (2.81)   Depth: 14/30   00:01:23  1256kN, tb=5
1...Qa3 2.Bf3 Qb4 3.Bb7 Nh7 4.Qxe6 Qxb7+ 5.Qc6 Qxc6+ 6.Kh2 Kg8 7.f3
  +-  (2.82)   Depth: 15/37   00:01:27  2648kN, tb=32
1...Qa3 2.Be2 Qa8+ 3.Bf3 Qb8 4.Kh3 Qb4 5.Bd1 Qa3
  +-  (2.84)   Depth: 16/38   00:01:33  4942kN, tb=108
1...Qa3 2.Kh3 Qa8 3.Bf3 Qa3 4.Bxh5 gxh5 5.Qxh5+ Kg8 6.Qg4+ Kh7 7.Qg6+ Nxg6 8.f3
Qxf3
  +-  (2.85)   Depth: 17/37   00:01:43  8666kN, tb=329
1...Qa3 2.Be2 Qa8+ 3.f3 Qa3 4.Kh3 Nd7 5.Qxd7 Qa8
  +-  (3.10)   Depth: 18/43   00:02:08  16758kN, tb=1239
1...Qa3 2.Be2 Qa8+ 3.f3 Qa3 4.Kh3 Qa8 5.Bf1 Nh7 6.Bd3 Nf8 7.Be4 Qc8 8.Bxg6 Qa8
9.Bb1 Qc8 10.Be4 Qb8
  +-  (3.10)   Depth: 18/43   00:02:13  18835kN, tb=1262
1...Qa3 2.Kh3 Qc5 3.Bf3 Qb4 4.Qf6+ Kh7 5.Qxg6+ Kxg6 6.Bxh5+ Kxh5 7.f4 Qxf4 8.Kg2
Qxe5 9.Kf2
  +-  (3.16)   Depth: 19/46   00:03:07  38416kN, tb=3007
1...Qa3 2.Kh3 Qc5 3.Be2 Qc8 4.Bf1 Qd8 5.Bg2 Qb8 6.Qxe6 Nxe6 7.Bh1
  +-  (3.17)   Depth: 20/49   00:04:26  62242kN, tb=8376
1...Qb4 2.Kh3 Qb8 3.Bf3 Qb4 4.Bd1 Qb8 5.Bf3 Qb4 6.Bd1 Qb8
  +-  (3.16)   Depth: 20/49   00:06:15  88501kN, tb=16739
1...Qb4 2.Kh3 Qb8 3.Bf3 Qb4 4.Be2 Qc5
  +-  (3.16)   Depth: 20/49   00:06:22  90831kN, tb=17055
1...Qb4 2.Bf3 Qa3 3.Be4 Qb4 4.Bb7 Qc5 5.Kh3 Qb4 6.f4 Qc4 7.Qxf8+ Kh7
  +-  (3.21)   Depth: 21/51   00:08:37  133426kN, tb=25484
1...Qb4 2.Bf3 Qa3 3.Kh3 Qb4 4.Qxe6 Nxe6 5.Be4
  +-  (3.22)   Depth: 22/49   00:13:32  203256kN, tb=53497
1...Qb4 2.Kh3 Qc5 3.Be2 Qc8 4.Bd3 Qa8 5.Kh2 Qb8 6.Qxg6 Nxg6 7.Bxg6
  +-  (3.24)   Depth: 23/58   00:40:55  376262kN, tb=125572

(,  23.04.2005)

It sees it's winning, but if can't find the Mate by Depth of 58 Ply
in the most significant positions; with best play, I doubt if Kasparov can
either.

>5n1k/5Q2/4p1p1/2q1P2p/7P/6P1/5PK1/3B4 b - - 0 64
>[D]5n1k/5Q2/4p1p1/2q1P2p/7P/6P1/5PK1/3B4 b - - 0 64
>Why did Karpov resigned?
>Can anybody see a series of White's moves leading to win after Qc5-b4?
>Engines quickly go to score about +3.00 and stick on it forever.



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