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Subject: Re: The ssdf games can be productive for Rebel inspite of autoplayer

Author: Ed Schröder

Date: 09:17:40 01/21/01

Go up one level in this thread


On January 21, 2001 at 11:32:50, Hans Christian Lykke wrote:

>On January 21, 2001 at 07:06:34, Uri Blass wrote:
>
>>On January 21, 2001 at 06:59:27, Ed Schröder wrote:
>>
>>>On January 21, 2001 at 05:45:46, Uri Blass wrote:
>>>
>>>>I looked only in one of the games of Century3 against Deep Fritz and I found
>>>>that Rebel does the same positional mistake without autoplayer.
>>>>
>>>>Here is the relevant position when I believe that Century3 blundered.
>>>>
>>>>[D]r3k2r/pq1pppbp/1pn2np1/8/2P5/1PN2NP1/PB2PPKP/R2Q1R2 b kq - 0 1
>>>>
>>>>Century3 played Rg8 and this move can be reproduced manually.
>>>>I do not understand the target of Rg8.
>>>
>>>Me neither.
>>>
>>>Can you post the complete game? as I can't reproduce Rg8 with the
>>>default settings and a hash table of 100 Mb. Century 3 plays the
>>>normal 0-0 here.
>
>
>Here is the hole thing
>I tried it on one of my P200MMX with 40MB hash
>At depth
>10       Ne4 -0.18
>10.02    d6  -0.18
>10.21    Rg8 -0.17
>11.00    Rg8 -0.16
>11.01    d6  -0.07
>
>Venlig hilsen
>
>Hans Christian Lykke


To be more precise I post the log-file....

Thinking....

  +---+---+---+---+---+---+---+---+  Deep Fritz AMD K6-2 - Century 3 AMD K6-2
8 | *R|   |   |   | *K|   |   | *R|
  +---+---+---+---+---+---+---+---+  00:00:00      00:00:00
7 | *p| *Q|   | *p| *p| *p| *B| *p|
  +---+---+---+---+---+---+---+---+
6 |   | *p| *N|   |   | *N| *p|   |  Time          infinite
  +---+---+---+---+---+---+---+---+  Hash          60 Mb
5 |   |   |   |   |   |   |   |   |  Engine        Rebel Century 3.0
  +---+---+---+---+---+---+---+---+  Personality   Rebel Century 3
4 |   |   | p |   |   |   |   |   |  anti-GM       Off
  +---+---+---+---+---+---+---+---+  Tactics       Off
3 |   | p | N |   |   | N | p |   |  Bluff Chess   Off
  +---+---+---+---+---+---+---+---+  Style         Normal
2 | p | B |   |   | p | p | K | p |  Strength      Strongest
  +---+---+---+---+---+---+---+---+  Search        Normal Search
1 | R |   |   | Q |   | R |   |   |
  +---+---+---+---+---+---+---+---+  11.. Bc1-b2   Qc8-b7
    a   b   c   d   e   f   g   h    12.. Nd4-f3

r3k2r/pq1pppbp/1pn2np1/8/2P5/1PN2NP1/PB2PPKP/R2Q1R2 b kq -

[Event "120'/40+60'/20+60'20"]
[Site "SSDF"]
[Date "2001.01.20"]
[Round "26"]
[White "Deep Fritz AMD K6-2"]
[Black "Century 3 AMD K6-2 "]
[Result "1-0"]
[WhiteElo "?"]
[BlackElo "2520"]
[ECO "A15"]

1.c4 Nf6 2.Nf3 b6 3.g3 Bb7 4.Bg2 c5 5.O-O g6 6.Nc3 Bg7 7.d4 cxd4 8.Nxd4
Bxg2 9.Kxg2 Qc8 10.b3 Nc6 11.Bb2 Qb7 12.Nf3 1-0

00:00:00  1.00  -0.27   12..O-O
00:00:00  1.05  -0.11   12..Ne4 13.Nxe4 Bxb2
00:00:00  1.06  -0.10   12..d6
00:00:00  1.09  0.02   12..Ne5
00:00:00  2.00  -0.14   12..Ne5 13.Nd5 Nxd5 14.Qxd5
00:00:00  2.01  -0.12   12..d6 13.e3
00:00:00  2.02  -0.11   12..Ne4 13.Nxe4 Bxb2
00:00:00  3.00  -0.11   12..Ne4 13.Nxe4 Bxb2
00:00:00  3.01  -0.09   12..d6 13.Nd5 Nxd5 14.Bxg7
00:00:00  3.02  -0.02   12..Ne5 13.Kg1 Ne4 14.Nxe4
00:00:00  4.00  -0.02   12..Ne5 13.Kg1 Ne4 14.Nxe4 Nxf3
00:00:00  5.00  -0.14   12..Ne5 13.Nd5 Nxf3 14.Bxf6 Ne1
                       15.Kg1  (0)

00:00:00  5.01  -0.02   12..Ne4 13.Nxe4 Bxb2 14.Rb1 Bg7
00:00:00  6.00  -0.09   12..Ne4 13.Nxe4 Bxb2 14.Rb1 Bg7
                        15.Qd6  (0)

00:00:01  7.00  -0.08   12..Ne4 13.Qd3 Nb4 14.Qxe4 Qxe4
                        15.Nxe4 Bxb2 16.Rab1  (0)

00:00:02  8.00  -0.07   12..Ne4 13.Qd3 Nb4 14.Qxe4 Qxe4
                        15.Nxe4 Bxb2 16.Rab1 Bg7  (1)

00:00:07  9.00  -0.12   12..Ne4 13.Qc2 Nb4 14.Qc1 Rg8 15.Rd1
                        Rc8 16.Nxe4  (3)

00:00:14 10.00  -0.18   12..Ne4 13.Qc2 Nxc3 14.Bxc3 Nd4
                        15.Bxd4 Bxd4 16.Rad1 Bg7 17.e4  (11)

00:00:19 10.02  -0.18   12..d6 13.Nd5 Ne5 14.Nxe5 dxe5 15.f3
                        Nxd5 16.cxd5 Rc8 17.e4 Qd7  (17)

00:00:39 10.21  -0.17   12..Rg8 13.Qd2 Ne5 14.Rad1 Rc8 15.Nd5
                        Nxf3 16.exf3 Nxd5 17.Bxg7 Rxg7 18.Qxd5  (32)

00:01:19 11.00  -0.16   12..Rg8 13.Qd2 Ne5 14.Nb5 Neg4 15.h3
                        a6 16.Nd6 exd6 17.hxg4 Nxg4 18.Bxg7
                        Rxg7  (42)

00:01:55 11.01  -0.07   12..d6 13.Nd5 Ne5 14.Nxe5 dxe5 15.f3
                        Rd8 16.e4 e6 17.Nxf6 Bxf6 18.Qc2  (79)

00:02:52 12.00  -0.16   12..d6 13.Nd5 Ne5 14.Nxe5 dxe5 15.e4
                        Nxe4 16.Re1 Nf6 17.Bxe5 Nxd5 18.Qxd5
                        Qxd5 19.cxd5 Bxe5 20.Rxe5  (142)

PC: PIII-800

Position tried with 60 and 100 Mb hash, identical log-file.

It means that Century 3 will play 12..Rg8 on 40/40 but NOT on 40/2h (12..d6)

If the game of Century 3 is played on a 450 Mhz machine the right move
on 40/2h should be 12..d6

Nevertheless the game is interesting because Century 3 should never
even consider 12..Rg8? I will have a look at the source code as the
thought something is wrong with the black short castling came up to
me first in London, secondly during the v/d Wiel match and now here
again.

Ed





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