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Subject: Re: tough position

Author: Robert Hyatt

Date: 19:24:23 12/12/03

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On December 12, 2003 at 17:34:32, Omid David Tabibi wrote:

>On December 12, 2003 at 16:52:12, Robert Hyatt wrote:
>
>>On December 12, 2003 at 15:29:55, Omid David Tabibi wrote:
>>
>>>On December 12, 2003 at 13:49:35, Robert Hyatt wrote:
>>>
>>>>On December 12, 2003 at 13:40:07, Will Singleton wrote:
>>>>
>>>>>Here's a position from a recent game, this one gives Amateur fits.
>>>>>How long to see black is busted?
>>>>>
>>>>>[d]4rr2/1b3p1k/pp5p/2b1pQ2/q7/P2R2B1/1PP3PP/2KR4 b - -
>>>>
>>>>
>>>>For Crafty, the bottom begins to fall out at 6 seconds or so,
>>>
>>>What do you mean by 6 seconds??? 6 seconds on a 100 MHz machine is fantastic,
>>>but it is horrible on the fastest quad....
>>>
>>>I can't agree more with Christophe about this. PLEASE ADD HARDWARE INFO!
>>>
>>
>>Sorry.  It is horrible.  It was on a quad 1.8ghz opteron.  :)
>>
>>I figured that was obvious since that is all I have been posting here
>>the last two weeks...
>
>Why don't you print a line before each analysis, reporting the system hardware
>and memory?
>
>I mainly run Falcon in commandline mode, and before each analysis it prints
>something like:

Not so easy on all the different systems I use.  Linux is trivial.  Others
(say solaris, OS/2, irix, hpux, etc) make this not so easy from a portability
issue.


>
>Falcon 0.050 running on GenuineIntel 733MHz 256MB:
>depth     time    nodes   nps  score  variation
> 3/ 6     0.03       0k    7k   0.23  1.e2e4 d7d5 2.b1c3
> 3/ 7     0.04       0k    8k   0.27  1.d2d4 d7d5 2.c1f4
> 4/10     0.04       0k   13k   0.00  1.d2d4 d7d5 2.c1f4 c8f5
> 4/10     0.04       0k   18k   0.03  1.e2e4 g8f6 2.b1c3 e7e5
> 5/12     0.06       3k   53k  -0.02  1.e2e4 d7d5 2.d1f3 d5e4 3.f3e4 b8c6
> 5/12     0.08       5k   69k   0.21  1.d2d4 e7e6 2.b1c3 f8b4 3.c1d2
> 6/14     0.13      12k   98k   0.00  1.d2d4 d7d5 2.b1c3 c8f5 3.c1f4 b8c6
> 6/14     0.21      24k  116k   0.06  1.e2e4 b8c6 2.f1c4 c6e5 3.d2d3 e5c4
>                                      4.d3c4
> 7/15     0.43      57k  134k   0.11  1.e2e4 d7d5 2.e4e5 b8c6 3.f1b5 c8d7
>                                      4.d2d4
> 7/15     0.52      71k  137k   0.23  1.d2d4 d7d5 2.b1c3 b8c6 3.c1f4 c8f5
>                                      4.g1f3
> 8/17     0.78     111k  142k   0.04  1.d2d4 d7d5 2.d1d3 d8d6 3.b1c3 g8f6
>                                      4.c3b5 d6c6
> 9/21     1.85     270k  145k   0.12  1.d2d4 d7d5 2.b1c3 c8f5 3.c1f4 g8f6
>                                      4.e2e3 b8c6 5.f1b5
> 9/21     2.41     346k  143k   0.15  1.e2e4 d7d5 2.e4d5 d8d5 3.b1c3 d5e5
>                                      4.d1e2 e5e2 5.f1e2 e7e5 6.c3d5 f8d6
>
>
>
>
>
>>
>>
>>>
>>>
>>>>where
>>>>it begins to see it is not ahead.  By 60 seconds it has failed low
>>>>to white a pawn up and climbing:
>>>>
>>>>               12->   4.84  -0.69   1. ... Kg8 2. Bxe5 Bf2 3. Rd4 Rxe5
>>>>                                    4. Qxe5 Re8 5. Rd8 Bc6 6. Rxe8+ Bxe8
>>>>                                    7. Rd6 Qb5 8. Qf4 Qg5 <HT>
>>>>               13     6.66     --   1. ... Kg8
>>>>               13    15.28   0.31   1. ... Kg8 2. Bxe5 Bf2 3. Bf6 Re2 4.
>>>>                                    Rd8 Bc5 5. R8d4 Rxc2+ 6. Qxc2 Qxc2+
>>>>                                    7. Kxc2 Bxd4 8. Bxd4 Be4+ 9. Kb3 Rd8
>>>>               13->  17.91   0.31   1. ... Kg8 2. Bxe5 Bf2 3. Bf6 Re2 4.
>>>>                                    Rd8 Bc5 5. R8d4 Rxc2+ 6. Qxc2 Qxc2+
>>>>                                    7. Kxc2 Bxd4 8. Bxd4 Be4+ 9. Kb3 Rd8
>>>>               14    35.70   0.00   1. ... Kg8 2. Bxe5 Bf2 3. Bf6 Re2 4.
>>>>                                    Rd8 Bh4 5. Rxf8+ Kxf8 6. Rd8+ Re8 7.
>>>>                                    Rxe8+ Qxe8 8. Bxh4 Qe3+ 9. Kb1 Qg1+
>>>>                                    10. Ka2 Qxg2 11. Qf4 Qxc2 12. Qxh6+
>>>>               14->  40.01   0.00   1. ... Kg8 2. Bxe5 Bf2 3. Bf6 Re2 4.
>>>>                                    Rd8 Bh4 5. Rxf8+ Kxf8 6. Rd8+ Re8 7.
>>>>                                    Rxe8+ Qxe8 8. Bxh4 Qe3+ 9. Kb1 Qg1+
>>>>                                    10. Ka2 Qxg2 11. Qf4 Qxc2 12. Qxh6+
>>>>               15    51.44     --   1. ... Kg8
>>>>               15     1:30   0.98   1. ... Kg8 2. Bxe5 Bf2 3. Rd4 Rxe5
>>>>                                    4. Qxe5 Re8 5. Rg4+ Qxg4 6. Qxe8+ Kg7
>>>>                                    7. Qe5+ f6 8. Qc7+ Kg6 9. Rd7 Qg5+
>>>>                                    10. Kb1 Bxg2 11. Rg7+ Kf5 12. Rxg5+
>>>>                                    hxg5



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