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Subject: Re: cute position

Author: Uri Blass

Date: 07:13:05 08/15/03

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On August 15, 2003 at 10:03:06, Anthony Cozzie wrote:

>On August 15, 2003 at 09:56:35, Uri Blass wrote:
>
>>On August 15, 2003 at 08:36:00, Anthony Cozzie wrote:
>>
>>>[D]r4r1k/1b3p1p/pq3N1p/n3p2N/Pp6/3Bn3/1PP1Q1PP/R4R1K w - - 0 26
>>>
>>>1. Rg1 Rfc8 2. Bxh7 Qd4 3. Rab1
>>> = (-0.89)      Depth: 5/12     00:00:00.25     40kN
>>>1. Rg1 Rfd8 2. Rae1 Bxg2 3. Rxg2 Nxg2 4. Qxg2 Qg1 5. Rxg1
>>> = (-1.00)      Depth: 6/16     00:00:00.70     153kN
>>>1. Rg1 Rfd8 2. Rae1 Bxg2 3. Rxg2 Nxg2 4. Qxg2 Qb7 5. Rxe5 Qxg2
>>> + (-0.70)      Depth: 7/19     00:00:01.36     377kN
>>>1. Rg1 e4 2. Bxe4 Bxe4 3. Nxe4 f5 4. Nef6 Rfd8
>>> = (-0.09)      Depth: 7/19     00:00:02.15     685kN
>>>1. Rg1 e4 2. Bxe4 Bxe4 3. Nxe4 f5 4. Qxe3 Qxe3
>>> = (0.00)       Depth: 8/23     00:00:03.48     1192kN
>>>1. Rf2 e4 2. Bxe4 Bxe4 3. Nxe4 f5 4. Nef6 Rfc8 5. Qd3 Rd8
>>> = (-0.04)      Depth: 9/30     00:00:20.53     7692kN
>>>1. Rf3 Bxf3 2. Qxf3 Qd4 3. Re1 Qh4 4. g3 Nxc2
>>> = (0.25)       Depth: 10/33    00:00:42.98     16634kN
>>>1. Rg1 Qd4 2. Rae1 Nec4 3. Bxc4 Nxc4 4. Rd1 Qc5 5. Nd7 Nb6 6. Nxf8 Rxf8
>>> = (0.43)       Depth: 11/39    00:01:25.00     33717kN
>>>1. Rf3 Bxf3 2. Qxf3 Qd4 3. Re1 Qh4 4. g3 Nac4 5. gxh4 Ng4 6. Bxc4 Nf2
>>> + (0.73)       Depth: 12/48    00:05:37.18     133815kN
>>>1. Rf3 Nxg2 2. Qxg2 Rg8 3. Qe2 Rg5 4. Be4 Rc8 5. h4 Rg6 6. Nd7 Qd4 7. Bxb7 Qxh4
>>>8. Qh2 Qxh2 9. Kxh2
>>> = (1.24)       Depth: 12/48    00:12:16.28     298098kN
>>>
>>>Very tough for Zappa.  5 minutes.  It changes its mind a lot here as well, which
>>>never helps - Rg1, then Rf2, then Rf3, then Rg1, then Rf3 again.
>>>
>>>anthony
>>
>>I wonder how does zappa knows not to consider first Rg1 at depth 12.
>>zappa has a score for Rg1 at depth 11 and the first output at depth 12 is a
>>score for Rf3.
>>
>>Uri
>
>I'm not sure what is strange (other than the slow times): Zappa likes Rg1 at
>depth 11, fails high on Rf3 at depth 12, and ends up with Rf3 as the best move
>at depth 12.
>
>anthony

The fact that I see no score for Rg1 at depth 12.
Does zappa have a score for Rg1 at depth 12 before finding Rf3?

If it has a score then I do not see it in the output and if it decides to search
Rf3 before Rg1 at depth 12 then how does it know to do it.

Uri

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Last modified: Thu, 15 Apr 21 08:11:13 -0700

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