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Subject: Re: Positional move for the amateurs

Author: Kurt Utzinger

Date: 12:02:04 07/30/04

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On July 30, 2004 at 14:37:17, Scott Gasch wrote:

>On July 30, 2004 at 13:08:37, Kurt Utzinger wrote:
>
>>On July 30, 2004 at 12:25:18, Scott Gasch wrote:
>>
>>>On July 30, 2004 at 10:55:07, Albert Silver wrote:
>>>
>>>>2q2rk1/p1rn1ppp/1p2pn2/8/Q2P4/2P2N2/P2B1PPP/2RR2K1 b - - 0 17
>>>>
>>>>17...Rc4! 18.Qxa7 Qc6 19.Qa3 Rc8
>>>>
>>>
>>>monsoon on a 1ghz UP needs 67 sec / depth 11:
>>>
>>> 1.  -0.26    0.00     40               h6
>>> 2.  -0.63    0.00     194              h6 c4
>>> 3.  -0.35    0.01     807              h6 Bf4 Rxc3 Qxa7
>>> 4.  -0.64    0.03     3174             h6 c4 Re8 Bf4
>>> 5.  -0.58    0.10     14301            h6 c4 Nb8 Bf4 Re7
>>> 6.  -0.69    0.55     72853            Re8 c4 e5 Qc2 g6 d5
>>> 7.  -0.55    1.42     211827           Re8 c4 e5 Re1 e4 Nh4 h6
>>> 8.  -0.64    5.59     820286           Ne4 c4 Nd6 Bf4 Rxc4 Rxc4 Nxc4 Qxa7
>>> 9.  -0.43   10.50     1666988          Ne4 c4 Nxd2 Rxd2 a6 Qb3 b5 Rdc2 Qb7 cxb5
>>>Rxc2 Qxc2 axb5
>>>10.  -0.58   23.48     3747302          Ne4 c4 Nxd2 Rxd2 a6 Qc2 Re8 Rdd1
>>>11.  -0.49   67.59     11176294         Rc4 Qxa7 Qc6 Qa3 Ra8 Qb3 h6 Qb1 Nd5 Qc2
>>>b5
>>>12.  -0.57   309.86     48817174         Rc4 Qxa7 Qc6 Qa3 Ra8 Qb2 h6 Rb1 Ra4 Ra1
>>>b5
>>
>>
>>     Oops, it's now the second time that I see your
>>     program monsoon to come with a move that most
>>     or none other engines can find. And last time
>>     I asked you to let me know something about
>>     monsoon. Have I missed your answer?
>>     Kurt [www.utzingerk.com]
>
>Well what can I say, the engine has its moments.  Of course its also very slow
>and doesn't get some positions that it seems like other engines all get.  I
>stopped working on it a couple of years ago (after cct5) and just recently
>started again.  I've implemented a parallel search and slowed down the engine
>even more by generating attack tables.  Right now I do not do any pruning except
>nullmove and alpha-based futility pruning in the qsearch.  I do checks in the
>qsearch.  I am still looking for bugs in the rewrite (and finding them).  Once I
>get a little more confident in the new code I will start with some pruning ideas
>I have and maybe try to speed things up a little.
>
>http://wannabe.guru.org/scott/hobbies/chess/
>
>Scott

     Hi Scott
     Many thanks for this valuable information. I must
     blame myself for having never heard from your engine.
     Kurt [http://www.utzingerk.com]



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