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Subject: Re: Nolot Positions result of Gambit-Tiger

Author: Bruce Moreland

Date: 01:10:05 11/30/00

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On November 29, 2000 at 07:17:57, Amir Ban wrote:

>On November 29, 2000 at 05:48:05, Jeremiah Penery wrote:
>
>>On November 29, 2000 at 05:04:18, Amir Ban wrote:
>>
>>Nolot #1:
>>
>>>17 minutes is not a fast solving time for this position.
>>
>>What would you consider a fast solving time for this position?
>
>Anything under 2 minutes. This is analysis from a version I'm currently testing:
>
>
>r3qb1k/1b4p1/p2pr2p/3n4/Pnp1N1N1/6RP/1B3PP1/1B1QR1K1 w - - 0 1
>
>Analysis by Junior x.1:
>
>1.a5 Rb8
>  ³  (-0.29)   Depth: 3   00:00:00
>1.Qd4 Nf4 2.Rge3 Nbd3
>  =  (-0.02)   Depth: 6   00:00:00  18kN
>1.Qd4 Nf4 2.Rge3 Nbd3
>  =  (-0.02)   Depth: 6   00:00:00  18kN
>1.Qd4 Nf4 2.Rge3 Nbd3
>  =  (-0.02)   Depth: 6   00:00:00  18kN
>1.Qd4 Nf4 2.Rge3 Nbd3
>  =  (-0.02)   Depth: 6   00:00:00  18kN
>1.Qd4 Nf4 2.Rge3 Nbd3 3.Bxd3 Nxd3 4.Rxd3 cxd3
>  ³  (-0.35)   Depth: 9   00:00:00  237kN
>1.Nxh6 c3 2.Bxc3 Nxc3 3.Rxc3 Bxe4 4.Bxe4 Rxe4 5.Nf7+ Kg8 6.Rce3
>  ³  (-0.26)   Depth: 9   00:00:01  766kN
>1.Nxh6 c3 2.Bxc3 Nxc3 3.Rxc3 Bxe4 4.Bxe4 Rxe4 5.Nf7+ Kg8 6.Rxe4 Qxe4 7.Rc7 Nd5
>8.Rb7
>  ³  (-0.26)   Depth: 12   00:00:23  9682kN
>1.Nxh6 c3 2.Kh2 Rxh6 3.Ng5 Qd7 4.Qg4 Qc7 5.Ne6 Qc8 6.Ng5 Kg8 7.Bf5 cxb2 8.Bxc8
>Rxc8 9.Ne6
>  =  (-0.12)   Depth: 14   00:02:57  69608kN
>1.Nxh6 c3 2.Kh2 Rxh6 3.Ng5 Qd7 4.Qg4 Qc7 5.Ne6 Qf7 6.Ng5
>  =  (0.00)   Depth: 15   00:06:31  147930kN
>1.Nxh6 c3 2.Kh2 Rxh6 3.Ng5 Qd7 4.Qg4 Qc7 5.Ne6 Qf7 6.Ng5
>  =  (0.00)   Depth: 16   00:14:43  322408kN
>1.Nxh6 c3 2.Ba1 Rxh6 3.Nxc3 Qh5 4.Qd4 Qf7 5.Rf3 Qc7 6.Rg3 Qc5 7.Qxc5 dxc5 8.Bg6
>  =  (-0.03)   Depth: 17   00:49:45  1013974kN

It takes mine 40 minutes on a quad 450 to get a positive score of not quite a
pawn.  It takes it a couple of minutes to find it at all on that machine, which
is slow.  Sometimes it finds it faster, and sometimes it has a better line right
off.

Your final line isn't the line that seems to be the solution.  You want 1. Nxh6
c3 2. Nf5 cxb2 3. Qg4 at least, I think, in order to be on the road to a real
tactical crush.

You seem to have something turned up pretty high if you find a pawn compensation
without really searching anything, and you are willing to play the key move
after one second.  Are you trying to change Junior's style?

I run these every day at 5 minutes per, but I seldom look at the output, I just
keep the stuff so I can compare later.

Can you find the key in position 8?  I noticed today that one of my versions had
found it with a score of +0.5, I don't know why.  That one is supposedly broken,
according to DT, but perhaps it pops up if you speculate (or have bugs).

bruce



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