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

Author: Vasik Rajlich

Date: 10:05:03 01/15/06

Go up one level in this thread


On January 14, 2006 at 23:59:14, William Penn wrote:

>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


William,

indeed as you said the time management parameters have no effect in analysis
mode. They are used to decide how long Rybka will think before submitting her
move during a game.

Re. the missing analysis, it's still on my to-do list for Rybka 1.2. I suspect
there is some hashing problem.

Vas



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