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Subject: Re: investigation

Author: Drexel,Michael

Date: 11:24:55 09/22/03

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On September 22, 2003 at 12:50:34, Vincent Diepeveen wrote:

>On September 21, 2003 at 05:58:50, emerson tan wrote:
>
>>On September 19, 2003 at 11:14:29, Vincent Diepeveen wrote:
>>
>>>Hello,
>>>
>>>I'm looking for positions to search very deep with a cpu or 500 which are
>>>interesting to search deep. Seemingly a whole machine must get reserved for DIEP
>>>world champs 2003. The NWO/NCF perhaps needs to pay for the cpu hours also
>>>during the night says SARA (there is 7 organisations involved and i have written
>>>at least 1 page for each processor to get it so i won't even start quoting all
>>>the organisations involved).
>>>
>>>Most jobs run like 2 weeks or so at say for example 32 processors, so all those
>>>jobs cannot get started trivially in the night.
>>>
>>>Anyway more negotiations will be there, because the world champs like this will
>>>cost 80000 cpu hours.
>>>
>>>This is all internal talks. In case any of such scenario happens or even between
>>>rounds when diep finishes sooner its games, there sometimes is a few hours left
>>>to run diep at 500 cpu's at for example 1 position each run.
>>>
>>>that's 250Ghz with around 200GB hashtables in total.
>>>
>>>So this allows some massive deep calculations. I'm looking for cool positions to
>>>try.
>>>
>>>Please don't mention the openings position, i'm already using that now and it
>>>isn't very interesting at all to search that one deep.
>>>
>>>feel free to email to me about this: diep@xs4all.nl
>>>
>>>Best regards,
>>>Vincent
>>
>>
>> I still havent seen a computer find the move here even if it takes several
>>days. The move is correct because white is already holpless in all variations. I
>>tried autoplaying with long time control, both computers cant understand black
>>is winning, but all the games black ended up winning.
>>
>>
>>[D]r3r1k1/pp1q1p2/2p2npb/PPPp1bnp/3PpN2/2N1P1PP/1R1B1PBK/3Q1R2 b - - 0 19
>>
>>Nikolic - Fischer 1968
>>
>>The key move is 19 - Bg4!!
>>
>>
>>The next Diagram was mentioned in Kasparov's My Predesessors, Kasparov said no
>>computer can find the move here.
>>
>>
>>[D]2r2rk1/pp3pp1/4bb1p/q2p1P1Q/3P4/2N5/PP4PP/1K1R1B1R b - - 0 17
>>
>>Pillsbury - Lasker 1896
>>
>>Key move 17 - Rxc3!!
>>
>>
>>The next one here involves early sacrifice in the opening, there's no forcing
>>line, just for iniative. This became the best played game in one of the  1990
>>Informator.
>>
>>
>>[D]rn1qk1nr/1b3ppp/p2b4/3p4/P1pP4/5N2/2PNBPPP/R1BQ1RK1 w kq - 0 11
>>
>>Geller - Dreev 1990
>>
>>Key move 11. Bxc4!!
>
>Gonna investigate this one. this pos looks very cool. complex middlegame
>with a lot of possibilities. It's the first pos from which i say: "YES this is
>interesting".

Do you always contradict yourself?
This is a highly tactical position.
White is better in all lines.
It IS solved already ...
I think Shredder should find it quickly on my PC :)

Geller,E - Dreev,A
rn1qk1nr/1b3ppp/p2b4/3p4/P1pP4/5N2/2PNBPPP/R1BQ1RK1 w kq - 0 1

Analysis by Shredder 7.04 after 3 minutes:

1. ² (0.43): 11.Ba3 Ne7 12.Re1 Bxa3 13.Rxa3 0-0 14.Qb1 Bc8 15.Qb2 Re8 16.Re3 Bd7
17.c3 Bxa4
2. ² (0.27): 11.Bxc4 dxc4 12.Nxc4 Be7 13.Rb1 Be4 14.Re1 Nf6 15.Ng5 Bd5 16.Nb6
Nbd7 17.Nxa8
3. = (0.17): 11.Re1 Ne7 12.Ba3 Nbc6 13.c3 0-0 14.Qc2 Bc8 15.Nh4 Re8 16.Bxd6 Qxd6
17.Ndf3 Bf5 18.Nxf5
4. = (0.17): 11.Ne5 Ne7 12.Re1 0-0 13.Bg4 Nbc6 14.Ndf3
5. = (0.17): 11.Rb1 Bc6 12.c3 Ne7 13.Ne5 0-0 14.Re1 Qa5 15.Nxc6 Nbxc6 16.Qc2
6. = (0.05): 11.c3 Nf6 12.Ne5 0-0 13.f4 Nc6 14.Qc2 Re8 15.Bb2 Rb8 16.Rae1 Qb6

(, 22.09.2003)

And now after 4 minutes:

Geller,E - Dreev,A
rn1qk1nr/1b3ppp/p2b4/3p4/P1pP4/5N2/2PNBPPP/R1BQ1RK1 w kq - 0 1

Analysis by Shredder 7.04:

1. ² (0.27): 11.Ba3 Ne7 12.Bxd6 Qxd6 13.Rb1 Bc6 14.c3 0-0 15.Re1 Nd7 16.Qc2 Rae8
17.Nf1 Qg6 18.Qxg6 Nxg6
2. ² (0.27): 11.Bxc4 dxc4 12.Nxc4 Be7 13.Rb1 Be4 14.Re1 Nf6 15.Ng5 Bd5 16.Nb6
Nbd7 17.Nxa8
3. = (0.17): 11.Re1 Ne7 12.Ba3 Nbc6 13.c3 0-0 14.Qc2 Bc8 15.Nh4 Re8 16.Bxd6 Qxd6
17.Ndf3 Bf5 18.Nxf5
4. = (0.17): 11.Ne5 Ne7 12.Re1 0-0 13.Bg4 Nbc6 14.Ndf3
5. = (0.17): 11.Rb1 Bc6 12.c3 Ne7 13.Ne5 0-0 14.Re1 Qa5 15.Nxc6 Nbxc6 16.Qc2
6. = (0.05): 11.c3 Nf6 12.Ne5 0-0 13.f4 Nc6 14.Qc2 Re8 15.Bb2 Rb8 16.Rae1 Qb6

(, 22.09.2003)

And just in time after 5 minutes:

Geller,E - Dreev,A
rn1qk1nr/1b3ppp/p2b4/3p4/P1pP4/5N2/2PNBPPP/R1BQ1RK1 w kq - 0 1

Analysis by Shredder 7.04:

1. ² (0.29): 11.Bxc4 dxc4 12.Nxc4 Be7 13.Rb1 Ra7 14.Bf4 Kf8 15.d5 Nd7 16.d6 Bf6
17.Be3 Qa8
2. ² (0.27): 11.Ba3 Ne7 12.Bxd6 Qxd6 13.Rb1 Bc6 14.c3 0-0 15.Re1 Nd7 16.Qc2 Rae8
17.Nf1 Qg6 18.Qxg6 Nxg6
3. = (0.19): 11.Re1 Ne7 12.c3 0-0 13.Nf1 Nbc6 14.Rb1 Qd7 15.Qc2 f6 16.Be3 Rae8
17.Ng3
4. = (0.17): 11.Ne5 Ne7 12.Re1 0-0 13.Bg4 Nbc6 14.Ndf3
5. = (0.17): 11.Rb1 Bc6 12.c3 Ne7 13.Ne5 0-0 14.Re1 Qa5 15.Nxc6 Nbxc6 16.Qc2
6. = (0.05): 11.c3 Nf6 12.Ne5 0-0 13.f4 Nc6 14.Qc2 Re8 15.Bb2 Rb8 16.Rae1 Qb6

(, 22.09.2003)

Michael

>
>>
>>Next one here people might already mentioned this to you, but just in case no
>>one mentioned it, I'll post it here because its too good to miss.
>>
>>[D]8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - 0 47
>>
>>Topalov - Shirov 1998
>>
>>Key move 47 - Bh3!!



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