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Subject: Re: Do the Rybka time parameters affect the analysis in infinite mode?

Author: William Penn

Date: 20:59:14 01/14/06

Go up one level in this thread


On January 14, 2006 at 22:44:52, William Penn wrote:

>Rybka 1.01 Beta 10d 32-bit
>
>Rate of Play
>Time Usage
>Emergency Time Buffer
>
>I don't believe this is mentioned in a Rybka readme file. It might have been
>answered on this forum but I forgot... :)
>Thanks,
>WP


This is baseline stuff of perhaps limited interest, but it's important to me,
so...(hope nobody is bored)...

I answered that question for myself with a few tests, and the answer appears to
be "No". The time option settings appear to have affect on infinite analysis
mode.

In the process, I also noticed that the analysis is reproducible in both the
Shredder Classic and Chessbase GUIs.

There is also no significant difference in engine speed between these two GUIs,
a factor which I always wonder about.

Apparently the only significant difference between running this engine in these
two GUIs is that kN/s=0 (doesn't work) in Shredder Classic GUI. That was true of
the Beta 9 version as well, at least with the Shredder Classic GUI. I never got
around to trying Beta 9 in the Chessbase GUI.

I haven't run enough tests yet, but it appears that the analysis outputs
decrease rapidly with this version. This example shows a decrease to 4
half-moves after only 2-3 minutes. That's important to me too, because I need a
lot of analysis info. Of course that's secondary to finding the best move, but a
close second.


Chessbase "Fritz" GUI (Shredder 8)
----------------------------------

[D]1rb1r2k/1p3p2/p4n1p/3P1Pb1/2R1P3/3N1BRP/6K1/5N2 w - - 0 1

Analysis by Rybka 1.01 Beta 10d 32-bit: [4MB]

35.d6
  ±  (0.88)   Depth: 3   00:00:00
35.d6
  ²  (0.67)   Depth: 4   00:00:00
35.d6 Bd7
  =  (0.03)   Depth: 5   00:00:00
35.h4 Bxh4
  ²  (0.47)   Depth: 5   00:00:00
35.h4 Bxh4 36.Rh3
  =  (0.11)   Depth: 6   00:00:00  5kN
35.Rd4 Nd7 36.d6
  ²  (0.38)   Depth: 6   00:00:00  12kN
35.Rd4 Nd7 36.d6 Bf6
  ±  (0.80)   Depth: 7   00:00:00  19kN
35.Rd4 Bh4 36.e5 Bxg3 37.Nxg3 Nd7
  ²  (0.66)   Depth: 8   00:00:00  32kN
35.Rd4 Bh4 36.e5 Bxg3 37.Nxg3 Nd7 38.e6
  ±  (0.71)   Depth: 9   00:00:00  50kN
35.Rd4 Nd7 36.d6 Bf6 37.e5 Bxe5 38.Nxe5 Nxe5 39.Rh4 Kh7
  ²  (0.59)   Depth: 10   00:00:01  109kN
35.Rd4 Nd7 36.d6 Bf6 37.e5 Bxe5 38.Nxe5 Nxe5 39.Rh4 Kh7 40.Be4
  ²  (0.49)   Depth: 11   00:00:02  224kN
35.Rd4 Nd7 36.d6 Bf6 37.e5 Bxe5 38.Nxe5 Nxe5 39.Ne3 Nxf3 40.Kxf3 Bd7 41.Ng4
  ²  (0.38)   Depth: 12   00:00:05  453kN
35.Rd4 Nd7 36.d6 Bf6 37.e5 Bxe5 38.Nxe5 Nxe5 39.Ne3 Nxf3 40.Kxf3 Bd7 41.Rh4 Kh7
  ²  (0.44)   Depth: 13   00:00:13  1058kN
35.Rd4 Nd7 36.d6 Bh4 37.Rg4 Bf6 38.Rc4 Ne5 39.Nxe5 Bxe5
  =  (0.04)   Depth: 14   00:00:29  2246kN
35.Rd4 Nd7 36.d6 Bh4 37.Rg4 Bf6 38.Rc4 Ne5 39.Nxe5 Bxe5 40.Rc7
  =  (0.00)   Depth: 15   00:01:18  6033kN
35.Rd4 Nd7 36.Rc4 Nf6
  =  (0.00)   Depth: 16   00:02:47  12762kN
35.Rd4 Nd7 36.Rc4 Nf6
  =  (0.00)   Depth: 17   00:05:12  24399kN


Analysis by Rybka 1.01 Beta 10d 32-bit [Ultraslow]:  [4MB]

35.d6
  ±  (0.88)   Depth: 3   00:00:00
35.d6
  ²  (0.67)   Depth: 4   00:00:00
35.d6 Bd7
  =  (0.03)   Depth: 5   00:00:00
35.h4 Bxh4
  ²  (0.47)   Depth: 5   00:00:00
35.h4 Bxh4 36.Rh3
  =  (0.11)   Depth: 6   00:00:00  5kN
35.Rd4 Nd7 36.d6
  ²  (0.38)   Depth: 6   00:00:00  12kN
35.Rd4 Nd7 36.d6 Bf6
  ±  (0.80)   Depth: 7   00:00:00  19kN
35.Rd4 Bh4 36.e5 Bxg3 37.Nxg3 Nd7
  ²  (0.66)   Depth: 8   00:00:00  32kN
35.Rd4 Bh4 36.e5 Bxg3 37.Nxg3 Nd7 38.e6
  ±  (0.71)   Depth: 9   00:00:00  50kN
35.Rd4 Nd7 36.d6 Bf6 37.e5 Bxe5 38.Nxe5 Nxe5 39.Rh4 Kh7
  ²  (0.59)   Depth: 10   00:00:01  109kN
35.Rd4 Nd7 36.d6 Bf6 37.e5 Bxe5 38.Nxe5 Nxe5 39.Rh4 Kh7 40.Be4
  ²  (0.49)   Depth: 11   00:00:03  224kN
35.Rd4 Nd7 36.d6 Bf6 37.e5 Bxe5 38.Nxe5 Nxe5 39.Ne3 Nxf3 40.Kxf3 Bd7 41.Ng4
  ²  (0.38)   Depth: 12   00:00:05  453kN
35.Rd4 Nd7 36.d6 Bf6 37.e5 Bxe5 38.Nxe5 Nxe5 39.Ne3 Nxf3 40.Kxf3 Bd7 41.Rh4 Kh7
  ²  (0.44)   Depth: 13   00:00:13  1058kN
35.Rd4 Nd7 36.d6 Bh4 37.Rg4 Bf6 38.Rc4 Ne5 39.Nxe5 Bxe5
  =  (0.04)   Depth: 14   00:00:29  2246kN
35.Rd4 Nd7 36.d6 Bh4 37.Rg4 Bf6 38.Rc4 Ne5 39.Nxe5 Bxe5 40.Rc7
  =  (0.00)   Depth: 15   00:01:19  6033kN
35.Rd4 Nd7 36.Rc4 Nf6
  =  (0.00)   Depth: 16   00:02:48  12762kN
35.Rd4 Nd7 36.Rc4 Nf6
  =  (0.00)   Depth: 17   00:05:15  24399kN



Shredder Classic GUI (Shredder 9)
---------------------------------

1rb1r2k/1p3p2/p4n1p/3P1Pb1/2R1P3/3N1BRP/6K1/5N2 w - -

Engine: Rybka 1.01 Beta 10d 32-bit (4 MB)
by Vasik Rajlich

3.00   0:00   +0.88    35.d6 (1.504)

4.00   0:00   +0.67    35.d6 (1.872)

5.00   0:00   +0.03    35.d6 Bd7 (7.104)

5.00   0:00   +0.47    35.h4 Bxh4 (7.616)

6.00   0:00   +0.11    35.h4 Bxh4 36.Rh3 (5.239)

6.00   0:00   +0.38    35.Rd4 Nd7 36.d6 (12.644)

7.00   0:00   +0.80    35.Rd4 Nd7 36.d6 Bf6 (19.649)

8.00   0:00   +0.66    35.Rd4 Bh4 36.e5 Bxg3 37.Nxg3 Nd7 (32.086)

9.00   0:00   +0.71    35.Rd4 Bh4 36.e5 Bxg3 37.Nxg3 Nd7
                       38.e6 (50.865)

10.00  0:01   +0.59    35.Rd4 Nd7 36.d6 Bf6 37.e5 Bxe5
                       38.Nxe5 Nxe5 39.Rh4 Kh7 (109.480)

11.01  0:02   +0.49    35.Rd4 Nd7 36.d6 Bf6 37.e5 Bxe5
                       38.Nxe5 Nxe5 39.Rh4 Kh7 40.Be4 (224.654)

12.01  0:05   +0.38    35.Rd4 Nd7 36.d6 Bf6 37.e5 Bxe5
                       38.Nxe5 Nxe5 39.Ne3 Nxf3 40.Kxf3 Bd7
                       41.Ng4 (453.065)

13.01  0:13   +0.44    35.Rd4 Nd7 36.d6 Bf6 37.e5 Bxe5
                       38.Nxe5 Nxe5 39.Ne3 Nxf3 40.Kxf3 Bd7
                       41.Rh4 Kh7 (1.058.133)

14.01  0:28   +0.04    35.Rd4 Nd7 36.d6 Bh4 37.Rg4 Bf6
                       38.Rc4 Ne5 39.Nxe5 Bxe5 (2.246.933)

15.01  1:17   0.00     35.Rd4 Nd7 36.d6 Bh4 37.Rg4 Bf6
                       38.Rc4 Ne5 39.Nxe5 Bxe5 40.Rc7 (6.033.590)

16.01  2:45   0.00     35.Rd4 Nd7 36.Rc4 Nf6 (12.762.654)

17.01  5:16   0.00     35.Rd4 Nd7 36.Rc4 Nf6 (24.399.339)



1rb1r2k/1p3p2/p4n1p/3P1Pb1/2R1P3/3N1BRP/6K1/5N2 w - -

Engine: Rybka 1.01 Beta 10d 32-bit [Ultraslow] (4 MB)
by Vasik Rajlich

3.00   0:00   +0.88    35.d6 (1.504)

4.00   0:00   +0.67    35.d6 (3.008)

5.00   0:00   +0.03    35.d6 Bd7 (7.104)

5.00   0:00   +0.47    35.h4 Bxh4 (8.752)

6.00   0:00   +0.11    35.h4 Bxh4 36.Rh3 (5.238)

6.00   0:00   +0.38    35.Rd4 Nd7 36.d6 (12.644)

7.00   0:00   +0.80    35.Rd4 Nd7 36.d6 Bf6 (19.650)

8.00   0:00   +0.66    35.Rd4 Bh4 36.e5 Bxg3 37.Nxg3 Nd7 (32.086)

9.00   0:00   +0.71    35.Rd4 Bh4 36.e5 Bxg3 37.Nxg3 Nd7
                       38.e6 (50.865)

10.00  0:01   +0.59    35.Rd4 Nd7 36.d6 Bf6 37.e5 Bxe5
                       38.Nxe5 Nxe5 39.Rh4 Kh7 (109.480)

11.01  0:02   +0.49    35.Rd4 Nd7 36.d6 Bf6 37.e5 Bxe5
                       38.Nxe5 Nxe5 39.Rh4 Kh7 40.Be4 (224.654)

12.01  0:05   +0.38    35.Rd4 Nd7 36.d6 Bf6 37.e5 Bxe5
                       38.Nxe5 Nxe5 39.Ne3 Nxf3 40.Kxf3 Bd7
                       41.Ng4 (453.065)

13.01  0:13   +0.44    35.Rd4 Nd7 36.d6 Bf6 37.e5 Bxe5
                       38.Nxe5 Nxe5 39.Ne3 Nxf3 40.Kxf3 Bd7
                       41.Rh4 Kh7 (1.058.134)

14.01  0:28   +0.04    35.Rd4 Nd7 36.d6 Bh4 37.Rg4 Bf6
                       38.Rc4 Ne5 39.Nxe5 Bxe5 (2.246.930)

15.01  1:17   0.00     35.Rd4 Nd7 36.d6 Bh4 37.Rg4 Bf6
                       38.Rc4 Ne5 39.Nxe5 Bxe5 40.Rc7 (6.033.589)

16.01  2:48   0.00     35.Rd4 Nd7 36.Rc4 Nf6 (12.762.655)

17.01  5:14   0.00     35.Rd4 Nd7 36.Rc4 Nf6 (24.399.342)

---------
WP



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