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Subject: Re: How long does your program take to avoid Qxc2 (funnier still)

Author: Chessfun

Date: 09:03:43 04/01/00

Go up one level in this thread


On April 01, 2000 at 11:03:40, Paulo Soares wrote:

>On March 31, 2000 at 17:29:50, Chessfun wrote:
>
>>On March 31, 2000 at 17:20:47, Chessfun wrote:
>>r3kb1r/2q2ppp/p2p4/1p1PpP2/8/4Q3/PPP1N1PP/R4RK1 b kq - 0 1
>>
>>Analysis by Nimzo 7.32:
>>
>>17...Qxc2 18.Rac1 Qxb2
>>  =  (0.00)   Depth: 6/19   00:00:01  31kN
>>17...Qa7
>>  =  (-0.01)   Depth: 6/19   00:00:01  31kN
>>17...Qa7 18.Qxa7 Rxa7 19.g4 Be7 20.c3 Bf6
>>  =  (-0.05)   Depth: 6/19   00:00:01  31kN
>>17...Rc8
>>  =  (-0.06)   Depth: 6/19   00:00:01  31kN
>>17...Rc8 18.b4 Qc4 19.c3 Qxd5 20.Nd4
>>  =  (-0.13)   Depth: 6/19   00:00:01  31kN
>>17...Rc8 18.Kh1 Qc4 19.Qxe5+ dxe5 20.b3
>>  =  (-0.20)   Depth: 7/20   00:00:02  228kN
>>17...Rc8 18.c3 Qc5 19.Qxc5 Rxc5 20.Rad1 Be7 21.g4 Bf6
>>  ³  (-0.30)   Depth: 8/22   00:00:03  411kN
>>17...Rc8 18.c3 Qc5 19.Qxc5 Rxc5 20.Rad1 Be7 21.g4 Bf6 22.h3
>>  =  (-0.15)   Depth: 9/23   00:00:06  1139kN
>>17...Qc4
>>  =  (-0.16)   Depth: 9/23   00:00:17  4134kN
>>17...Rc8 18.c3 Qc5 19.Qxc5 Rxc5 20.Rad1 Be7 21.g4 Bf6 22.h3
>>  =  (-0.15)   Depth: 9/23   00:00:19  4686kN
>>17...Rc8 18.c3 Qc5 19.Qxc5 Rxc5 20.Rad1 Be7 21.g4 a5 22.h3 Bf6
>>  ³  (-0.27)   Depth: 10/25   00:00:30  7589kN
>>17...Rc8 18.a4 Qc5 19.Qxc5 Rxc5 20.axb5 axb5 21.Ra8+ Ke7 22.f6+ gxf6
>>  =  (-0.21)   Depth: 11/26   00:01:18  19493kN
>>
>>(Bird, Scarb 31.03.2000)
>>
>>Thanks
>
>I would like to know because Nimzo7.32 moved of opinion regarding Qxc2. Could
>be the learning function?
>
>Below the Rebel-Tiger analyzes on a PIII-450 and HT=64Mb:
>
>00:00:00.9	0,40	7	44021	Qxc2  Qb6  Qc5+  Qxc5  dxc5  f6  g6
>00:00:00.9	0,28	7	77971	Qxc2  f6  g6  b3  Qc7  Rac1  Qa5
>00:00:02.6	0,24	8	229124	Qxc2  Rac1
>00:00:03.7	0,16	9	402564	Qxc2  Rac1  Qxb2  Qb6  Rd8  Qc6+  Ke7  f6+  gxf6  Ng3
>Bg7
>00:00:07.7	0,00	10	772041	Qxc2  Rac1  Qxb2  Qb6  Rd8  Qc6+  Rd7  Qc8+  Rd8  Qc6+
>00:00:21.6	0,00	11	2421343	Qxc2  Rac1  Qxb2  Qb6  Rd8  Qc6+  Rd7  Qc8+  Rd8
>Qc6+
>00:00:34.1	0,02	11	3802607	Be7
>00:02:18.8	0,02	12	15457400	Be7  Nc3  0-0  Rac1  Bd8  Kh1  Bh4  g3  Be7  Ne4
>Qa7  Qe2
>00:04:35.2	-0,06	13	31039778	Be7  Nc3  0-0  Rac1  Qa5
>
>End of depth 13 aproximately 6min.
>
>Paulo Soares, from Brazil


It annoyed me coz after I had re-saved the pgn without thinking
times and score depth I had deleted the original that had that info
on it. It was only after that I thought to look at it again with Nimzo.
But by then all I had left with just a clean pgn file.

I even tried re-booting thinking maybe it had a stored evaluation.

It could have been caused by pondering. I watched it from the start and
it was thinking about the winning the pawn while thinking of the two piece
exchanges. While MCP8 was thinking of it's reply to Qxc2 Nimzo was already
stating the next 5 moves and that it was lost, all this while MCP8 was still
scoring = but it had the first three moves and would see the 4th and 5th as
it got there.

Fortunately there was nothing riding on this game.

Thanks.





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