Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: GM blunder at ICC

Author: Uri Blass

Date: 10:41:20 06/01/01

Go up one level in this thread


On June 01, 2001 at 09:32:18, Slater Wold wrote:

>This was my game against garompon.
>
>Yes, he had me beat, but had time trouble.
>
>D.S. went from -5.12 to -0.12 on that move.
>
>He had totally crushed me kingside.  After the game, he said that Deep Shredder
>was a fool.  That it made stupid mistakes - such as eating pawns while a 4 piece
>attack insues on it's king.
>
>I am sure we will play again soon.  I have a 30/10 game against Petrovich(GM) on
>ICC on Saturday morning @ 9am ICC server time.  He should be able to do what
>garompon did, only have more time to do it.
>
>And about Uri saying something about D.S. doing better because it would have
>more time too - I doubt it.  D.S. was confident in all it's moves, and just like
>it's loss to Klages, didn't realize it was losing, until it was FAR too late to
>do anything about it.  I mean from +0.50 to -2.12.
>
>It's all horizon.  And even 2000mhz doesn't make up for it.
>
>
>Slate

Here is some analysis of the position when deep Shredder blundered on P8000(64
mbytes hash for Deep Fritz and 48 mbytes for the tigers.

Deep Fritz needs almost an hour to see that Qxb3 is wrong

garompon - Project
[D]3r1brk/1p3p1p/pqnpp1p1/4n1Q1/P1P1PN2/1PN3R1/5PPP/B1R3K1 b - - 0 1

Analysis by Deep Fritz:

24...Qxf2+--
  +-  (6.00)   Depth: 1/3   00:00:00
24...Qxf2+-- 25.Kxf2
  +-  (8.47)   Depth: 1/3   00:00:00
24...Qxb3!
  +-  (2.69)   Depth: 1/4   00:00:00
24...Qxb3! 25.Rb1
  =  (0.00)   Depth: 1/5   00:00:00
24...Qxb3 25.Rb1 Qxc4
  =  (0.00)   Depth: 2/6   00:00:00
24...Qxb3 25.Rb1 Qxc4 26.Rxb7
  =  (0.06)   Depth: 3/12   00:00:00
24...h6!
  =  (-0.03)   Depth: 3/13   00:00:00  1kN
24...h6! 25.Rh3
  =  (-0.06)   Depth: 3/16   00:00:00  1kN
24...h6--
  =  (0.25)   Depth: 4/12   00:00:00  2kN
24...h6-- 25.Rh3 Kh7
  ²  (0.66)   Depth: 4/12   00:00:00  2kN
24...Qxb3!
  ²  (0.62)   Depth: 4/15   00:00:00  3kN
24...Qxb3! 25.Rb1 Qxc4 26.Rxb7 Bg7
  ³  (-0.31)   Depth: 4/15   00:00:00  4kN
24...Qxb3 25.Rb1 Qxc4 26.Rxb7 d5 27.exd5
  ³  (-0.41)   Depth: 5/21   00:00:00  21kN
24...Qxb3 25.Rb1 Qa3 26.Rh3 Bg7 27.Bb2
  ³  (-0.31)   Depth: 6/22   00:00:00  53kN
24...Bg7!
  ³  (-0.34)   Depth: 6/25   00:00:00  68kN
24...Bg7! 25.Nfe2 Qxb3 26.Rb1
  ³  (-0.47)   Depth: 6/25   00:00:00  90kN
24...Bg7 25.Qh4 Qxb3 26.Rh3 h6 27.Rb1 Qxc4 28.Rxb7
  ³  (-0.47)   Depth: 7/24   00:00:00  206kN
24...Bg7 25.Qh4 Qxb3 26.Rh3 h6 27.Qg5 Rgf8 28.Rb1
  ³  (-0.56)   Depth: 8/26   00:00:00  465kN
24...Bg7 25.Qh4 Qxb3 26.Ncd5 g5 27.Rxb3 gxh4 28.Rxb7 exd5
  ³  (-0.38)   Depth: 9/27   00:00:02  1206kN
24...Bg7 25.Qh4 Qxb3 26.Ncd5 g5 27.Rxb3 gxh4 28.Rxb7 exd5 29.cxd5
  ³  (-0.38)   Depth: 10/32   00:00:05  3658kN
24...Bg7 25.Qh4 Qxb3 26.Ncd5 Qxa4 27.Nf6 h6 28.Nxg8 Rxg8 29.Bxe5 Nxe5
  =  (-0.09)   Depth: 11/31   00:00:14  9242kN
24...Qxb3!
  =  (-0.13)   Depth: 11/34   00:00:26  17284kN
24...Qxb3! 25.Nb5 Qxa4 26.Ra3 axb5 27.Rxa4 bxa4 28.Rb1 Bg7
  =  (-0.22)   Depth: 11/36   00:00:34  22233kN
24...Qxb3 25.Nb5 Qxa4 26.Ra3 axb5 27.Rxa4 bxa4 28.Rb1 Bg7 29.Bxe5
  =  (-0.22)   Depth: 12/37   00:01:20  52992kN
24...Qxb3 25.Nb5 Qxa4 26.Ra3 axb5 27.Rxa4 bxa4 28.Rb1 Bg7 29.Rxb7
  ³  (-0.44)   Depth: 13/36   00:04:24  176716kN
24...Qxb3--
  =  (-0.13)   Depth: 14/43   00:13:06  535253kN
24...Qxb3--
  =  (-0.13)   Depth: 14/43   00:16:32  682193kN
24...Qxb3--
  =  (0.19)   Depth: 15/43   00:22:58  949616kN
24...Qxb3--
  =  (0.19)   Depth: 15/45   00:45:06  1843821kN
24...Bg7!
  =  (0.00)   Depth: 15/45   00:50:23  2049065kN

(Blass, Tel-Aviv 01.06.2001)

You can see that Deep fritz started to fail low at depth 14 and continued to
fail low at depth 15 and only at depth 15 changed it's mind.

Deep Fritz can find that Nd5  is very good after Qxb3

Here is the analysis of Deep Fritz

garompon - Project
[D]3r1brk/1p3p1p/p1npp1p1/4n1Q1/P1P1PN2/1qN3R1/5PPP/B1R3K1 w - - 0 1

Analysis by Deep Fritz:

25.Qxd8--
  -+  (-1.69)   Depth: 1/3   00:00:00
25.Qxd8-- Nxd8
  -+  (-4.41)   Depth: 1/3   00:00:00
25.Nxe6!
  -+  (-3.00)   Depth: 1/3   00:00:00
25.Nxe6! fxe6
  -+  (-2.25)   Depth: 1/3   00:00:00
25.Nfd5!
  -+  (-1.84)   Depth: 1/7   00:00:00
25.Nfd5! exd5
  -+  (-1.53)   Depth: 1/7   00:00:00
25.Ncd5!
  µ  (-1.34)   Depth: 1/7   00:00:00
25.Ncd5! Qxa4
  ³  (-0.44)   Depth: 1/7   00:00:00
25.Qf6+!
  ³  (-0.41)   Depth: 1/7   00:00:00
25.Qf6+! Bg7
  ³  (-0.34)   Depth: 1/7   00:00:00
25.Rb1!
  =  (0.00)   Depth: 1/7   00:00:00
25.Rb1 Qxc4 26.Rxb7
  =  (0.06)   Depth: 2/8   00:00:00
25.Rb1 Qc2 26.a5
  =  (0.00)   Depth: 3/13   00:00:00  1kN
25.Rb1 Qxc4 26.Rxb7 d5 27.exd5
  ³  (-0.41)   Depth: 4/20   00:00:00  4kN
25.Rb1 Qxc4 26.Rxb7 d5 27.exd5 exd5
  ³  (-0.41)   Depth: 5/18   00:00:00  24kN
25.Rb1 Qxc4 26.Rxb7 h6 27.Rh3 d5 28.exd5
  ³  (-0.44)   Depth: 6/19   00:00:00  60kN
25.Rb1 Qxc4 26.Rxb7 Bg7 27.Re3 Nd4 28.Bb2
  ³  (-0.56)   Depth: 7/23   00:00:00  230kN
25.Nb5!
  ³  (-0.53)   Depth: 7/27   00:00:00  447kN
25.Nb5! Qxa4 26.Ra3 Qb4 27.Nd3 f6 28.Qxf6+ Bg7
  ³  (-0.37)   Depth: 7/27   00:00:00  471kN
25.Nb5 Qxa4 26.Ra3 Be7 27.Qxe7 Nxe7 28.Rxa4 axb5 29.cxb5
  =  (-0.09)   Depth: 8/27   00:00:01  794kN
25.Nb5 Qxa4 26.Ra3 Be7 27.Qxe7 Nxe7 28.Rxa4 axb5 29.cxb5
  =  (-0.09)   Depth: 9/29   00:00:02  1649kN
25.Nb5 Qxa4 26.Ra3 axb5 27.Rxa4 bxa4 28.Rb1 Bg7 29.Rxb7 Nxc4
  =  (-0.22)   Depth: 10/30   00:00:06  3908kN
25.Nb5 Qxa4 26.Ra3 axb5 27.Rxa4 bxa4 28.Rb1 Bg7 29.Bxe5 dxe5 30.Ne2 h6
  =  (-0.22)   Depth: 11/31   00:00:19  12820kN
25.Nb5 Qxa4 26.Ra3 axb5 27.Rxa4 bxa4 28.Rb1 Bg7 29.Rxb7 Rb8 30.Rb5
  ³  (-0.44)   Depth: 12/34   00:00:57  37575kN
25.Nb5 Qxa4 26.Ra3 axb5 27.Rxa4 bxa4 28.Qg3 Bg7 29.Qa3 Bh6 30.Qg3
  ³  (-0.41)   Depth: 13/39   00:04:02  163976kN
25.Ncd5!
  ³  (-0.37)   Depth: 13/41   00:08:26  346036kN
25.Ncd5! Qxa4 26.Nf6 Be7 27.N4h5 Qb4 28.f4 Qd2 29.Rf1
  =  (-0.03)   Depth: 13/41   00:09:46  402165kN
25.Ncd5!
  ²  (0.28)   Depth: 14/43   00:12:50  523631kN
25.Ncd5! Qa2 26.Nf6 Rg7 27.N4h5 Be7 28.Nxg7 Kxg7 29.Nh5+ Kh8 30.Qf4
  ±  (0.88)   Depth: 14/43   00:19:14  775671kN
25.Ncd5!
  ±  (1.19)   Depth: 15/43   00:28:08  1132012kN

(Blass, Tel-Aviv 01.06.2001)

Here is some analysis of other programs
Gambittiger can avoid Qxb3 in 0 seconds when Tiger14 needs more time but still
can avoid it at tournament time control.

garompon - Project
3r1brk/1p3p1p/pqnpp1p1/4n1Q1/P1P1PN2/1PN3R1/5PPP/B1R3K1 b - - 0 1

Analysis by Gambit Tiger 2.0:

24...Be7 25.Qh6
  =  (0.17)   Depth: 9   00:00:00  85kN
24...Be7 25.Qh6
  =  (0.17)   Depth: 9   00:00:00  100kN
24...Be7 25.Qh6
  =  (0.17)   Depth: 10   00:00:01  220kN
24...Be7 25.Qh6
  =  (0.17)   Depth: 11   00:00:08  1694kN
24...Be7 25.Qh6
  =  (0.17)   Depth: 12   00:00:14  2840kN
24...Be7 25.Qh6
  =  (0.17)   Depth: 13   00:00:20  3932kN
24...Be7 25.Qh6
  =  (0.17)   Depth: 14   00:01:01  12406kN
24...Be7 25.Qh6
  =  (0.17)   Depth: 15   00:02:03  24784kN

(Blass, Tel-Aviv 01.06.2001)
Gambittiger can find Nd5 in 14 seconds

garompon - Project
3r1brk/1p3p1p/p1npp1p1/4n1Q1/P1P1PN2/1qN3R1/5PPP/B1R3K1 w - - 0 1

Analysis by Gambit Tiger 2.0:

25.Rb1 Qxc4 26.Rxb7 Rd7 27.Rxd7 Nxd7 28.Bb2 Bg7
  =  (0.00)   Depth: 7   00:00:00  84kN
25.Rb1 Qxc4 26.Rh3 Rd7 27.Qh4 Rg7 28.Qg3 g5
  =  (0.16)   Depth: 8   00:00:00  157kN
25.Rb1 Qxc4 26.Rh3 Rb8 27.Qh4 Rg7 28.Qh6 Be7 29.Rg3
  =  (-0.02)   Depth: 9   00:00:01  331kN
25.Rb1 Qxc4 26.Rh3 Rb8 27.Rd1 Rd8 28.Qh4 Rg7 29.Rg3 Rg8
  =  (-0.15)   Depth: 10   00:00:05  944kN
25.Nb5 Qxa4 26.Ra3 Be7 27.Qxe7 Nxe7 28.Rxa4 axb5 29.cxb5 Ra8 30.Rxa8 Rxa8 31.Bb2
  =  (0.14)   Depth: 10   00:00:07  1399kN
25.Nb5 Qxa4 26.Ra3 Be7 27.Qxe7 Nxe7 28.Rxa4 axb5 29.cxb5 Rc8 30.Rac4 Rxc4
31.Rxc4
  =  (0.04)   Depth: 11   00:00:11  2135kN
25.Ncd5 Qxa4 26.Nf6 Be7 27.Rh3 Rg7 28.Qh4 Bxf6 29.Qxf6 Qa2 30.Rh6 Rc8
  ²  (0.36)   Depth: 11   00:00:14  2800kN
25.Ncd5 Qxa4 26.Nf6 Rg7 27.N4h5 gxh5 28.Qh6 Nf3+ 29.Kh1 Ng5 30.Nxh5 f6 31.Nxg7
Bxg7 32.Bxf6
  ±  (0.98)   Depth: 12   00:00:33  6692kN
25.Ncd5 Qa2 26.Nb4 Nxb4 27.Qxd8 Nbc6 28.Qc7 Bg7 29.Nd3 Nxd3 30.Bxg7+ Kxg7
31.Rxd3 Qb2 32.Rcd1
  +-  (1.52)   Depth: 13   00:01:37  20798kN

(Blass, Tel-Aviv 01.06.2001)
garompon - Project
3r1brk/1p3p1p/pqnpp1p1/4n1Q1/P1P1PN2/1PN3R1/5PPP/B1R3K1 b - - 0 1

Analysis by Chess Tiger 14.0:

24...Bg7 25.Rh3 Qxb3 26.Rb1 Qa3 27.Bb2
  =  (0.02)   Depth: 6   00:00:00  71kN
24...Bg7 25.Rh3 Qxb3 26.Qh4 h6 27.Qg5 Kh7
  ³  (-0.36)   Depth: 7   00:00:00  117kN
24...Bg7 25.Rh3 Qxb3 26.Qh4 h6 27.Rb1 Qa3 28.Qg5
  =  (0.04)   Depth: 8   00:00:01  191kN
24...Qxb3 25.Nb5 Qxa4 26.Ra3 Qb4 27.Nd3 Be7 28.Qxe7 Nxe7 29.Nxb4 axb5 30.cxb5
  =  (-0.08)   Depth: 8   00:00:01  291kN
24...Qxb3 25.Nb5 Qb4 26.Nd3 Qxa4 27.Nxd6 Rxd6 28.Bxe5+ Nxe5 29.Qxe5+ Rg7 30.Rh3
Qa2
  =  (-0.24)   Depth: 9   00:00:03  612kN
24...Qxb3 25.Nb5 Qb4 26.Nd3 Qxa4 27.Nxd6 Rxd6 28.Bxe5+ Nxe5 29.Qxe5+ Rg7 30.Rh3
Qa2
  =  (-0.24)   Depth: 10   00:00:05  1011kN
24...Qxb3 25.Nb5 Qb4 26.Nd3 Qxa4 27.Nxd6 Rxd6 28.Bxe5+ Nxe5 29.Qxe5+ Rg7 30.c5
Rd7 31.Rh3 Be7
  =  (0.02)   Depth: 11   00:00:10  1926kN
24...Qxb3 25.Nb5 Qb4 26.Nd3 Qxa4 27.Nxd6 Rxd6 28.Bxe5+ Nxe5 29.Qxe5+ Rg7 30.c5
Rd7 31.Rh3 Rd4
  =  (-0.02)   Depth: 12   00:00:36  6911kN
24...Qxb3 25.Ncd5 Qxa4 26.Nf6 Be7 27.N4h5 Rg7 28.Nxg7 Kxg7 29.Nh5+ Kh8 30.Qh6
Bf8 31.Qf4 Be7
  ±  (0.82)   Depth: 13   00:01:28  17270kN
24...Bg7 25.Rh3 Qc5 26.Qh4 h6 27.Kf1 Rgf8 28.Nce2 Kg8 29.Qg3 b6 30.Bb2 Rb8
  ²  (0.60)   Depth: 13   00:03:50  44961kN
24...Be7 25.Qh6
  =  (0.15)   Depth: 13   00:03:54  45932kN

(Blass, Tel-Aviv 01.06.2001)



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.